Stardust@home |
Stardust@home |
Nov 17 2005, 01:00 PM
Post
#1
|
|
Member Group: Members Posts: 370 Joined: 12-September 05 From: France Member No.: 495 |
I don't found any post about Stardust@Home so I created a new thread.
Stardust@Home is a distributed search by volunteers for interstellar dust in the Stardust interstellar dust collector. Volunteers have to pre-register for an expected start in spring of 2006. You will also have to pass a test to be qualified for the search. Indeed, unlike the distributed computer projects running in background tasks, this project is using your eyes to scan "focus movies" thanks to a Virtual Microscope. According to estimations, there should be about 45 interstellar dust impacts in the collector. Besides the satisfaction of contributing actively to this sample return project, your name will appear as a co-author on the paper announcing the discovery of the particle. http://stardustathome.ssl.berkeley.edu/ Rakhir |
|
|
Nov 17 2005, 09:19 PM
Post
#2
|
|
Member Group: Members Posts: 356 Joined: 12-March 05 Member No.: 190 |
Looks fun. What do they mean though when they say "Not even one contemporary interstellar dust grain has ever been studied in the laboratory"? Were old grains found somewhere?
|
|
|
Nov 17 2005, 09:28 PM
Post
#3
|
|
Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
http://www.psrd.hawaii.edu/April00/analyzingSmall.html
has some good information. I think what they mean by contemporary is "recent". Grains studied so far have been from meteorites etc, dating back to the birth of the solar system. -------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
|
|
Jan 9 2006, 09:42 AM
Post
#4
|
|
Member Group: Members Posts: 147 Joined: 30-June 05 From: Bristol, UK Member No.: 423 |
Pre-registered and ready for action.
I think this is an excellent opportunity for UMSF members to actively participate in a research project. Ok it is a monotonous search for a tiny mote of dust, but much science is just like that, and just think how you will feel if you are one of those who found one of the 45. Nick |
|
|
Jan 9 2006, 02:20 PM
Post
#5
|
|
Member Group: Members Posts: 470 Joined: 24-March 04 From: Finland Member No.: 63 |
Is there some sort of explanation from the Stardust team why this detection cannot be done by a computer program scanning the images? Are the marks left by interstellar dust so unpredictable that human work is needed? How does the person know what to look for then?
I'd imagine that the trail would just be longer because of higher velocity of interstellar particles, so it seems strange that this couldn't be detected by a machine. Anyhow, I already signed for the job anyway :-) -------------------- Antti Kuosmanen
|
|
|
Jan 9 2006, 02:51 PM
Post
#6
|
|
Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
It's probably cheaper to get people to do it than write some software to do it Especialyl when the people are a) free and plentiful
There's going to be some 'training' images before you're allowed to do real ones as I understand it, to make sure you know what you're doing It reminds me of the Mars crater counting on 'clickworkers' Doug |
|
|
Jan 9 2006, 03:43 PM
Post
#7
|
|
Member Group: Members Posts: 562 Joined: 29-March 05 Member No.: 221 |
stardust@home
please be mac compatible please be mac compatible please be mac compatible please be mac compatible please be mac compatible please be mac compatible that is all. |
|
|
Jan 9 2006, 04:45 PM
Post
#8
|
|
Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
QUOTE (djellison @ Jan 9 2006, 06:51 AM) It's probably cheaper to get people to do it than write some software to do it Especialyl when the people are a) free and plentiful There's going to be some 'training' images before you're allowed to do real ones as I understand it, to make sure you know what you're doing It reminds me of the Mars crater counting on 'clickworkers' Yes, it's something like clickworkers. I beta-tested their training materials and it is tedious but I could get hooked anyway and I think it is a Web browser-based Java application, so it should be platform-independent, provided you've got Java working properly on your machine. We're collaborating on the project, mostly to try to help them get the word out to people. They'll have an awful lot of images to look at! --Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
|
|
|
Jan 9 2006, 04:46 PM
Post
#9
|
|
Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
I did WAYYYyy too much crater clicking...it was strangely addictive.
I'm guessing the 'movies' refered to in that TPS article are a pull of focus thru the gel? Doug |
|
|
Jan 9 2006, 04:53 PM
Post
#10
|
|
Member Group: Members Posts: 510 Joined: 17-March 05 From: Southeast Michigan Member No.: 209 |
QUOTE (elakdawalla @ Jan 9 2006, 11:45 AM) Do you know if your connection speed will have an impact on performance? Since I really doubt my company would pay for my time & bandwidth doing stardust@home (silly, I know, but they do keep going on about profit and such), I'll be doing it from my dialup access at home. This could be the straw that breaks the camel's back for my getting broadband at home, though...just need a way to get it through the Household Purchasing Department -------------------- --O'Dave
|
|
|
Jan 9 2006, 05:01 PM
Post
#11
|
|
Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
QUOTE (djellison @ Jan 9 2006, 08:46 AM) Yup. You catch the dust particle paths because they are beneath the surface, not on the surface, so they pop into focus when everything on the surface is blurry. I think that the "movies" are really just stacks of a couple dozen individual JPG images, which you can click forward and backward through, and they're not very high resolution, I think maybe only 400 or 500 pixels wide. So it should be possible (though not speedy) to work on this through a dialup. --Emily -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
|
|
|
Jan 9 2006, 05:03 PM
Post
#12
|
|
Member Group: Members Posts: 624 Joined: 10-August 05 Member No.: 460 |
QUOTE (akuo @ Jan 9 2006, 07:20 AM) Is there some sort of explanation from the Stardust team why this detection cannot be done by a computer program scanning the images? Are the marks left by interstellar dust so unpredictable that human work is needed? How does the person know what to look for then? I'd imagine that the trail would just be longer because of higher velocity of interstellar particles, so it seems strange that this couldn't be detected by a machine. Anyhow, I already signed for the job anyway :-) It is extremely difficult to train a computer to recognize and discriminate fringe events - 1 to eight pixels. While the human eye can quickly discern a pattern of shadows (due to variation in light, or slight density changes in the medium), a computer will often identify these as false positives. Another problem is patterns in a neutral medium that are periodic but slightly asymetric. These are flagged as contaminants by virtually any pattern recognition software. I can eyeball a slice of Swiss cheese, and easily tell if a hole formed naturally, or if it was left by a core sampler. A computer would have fits trying to tell the difference. There is a good probability that all of the images will be prescreen by computer, and only images with possible inclusions will be distributed to image evaluators. (FWIW, I have written neuro-network-like routines that are used to evaluate rocket motor propellant grains for many programs...fun stuff, and if the medium is right, I might be able to turn them loose on Stardust.) |
|
|
Jan 9 2006, 05:41 PM
Post
#13
|
|
Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
QUOTE (paxdan @ Jan 9 2006, 03:43 PM) stardust@home please be mac compatible please be mac compatible please be mac compatible please be mac compatible please be mac compatible please be mac compatible that is all. They have audio tape explaining how to convert the program for your mac. It's an 8-track. -------------------- If Occam had heard my theory, things would be very different now.
|
|
|
Feb 3 2006, 05:19 AM
Post
#14
|
|
Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
I registered with Stardust@home as soon as its existence was revealed on the forum, here. I've yet to hear anything at all back from them.
Has anyone heard from them? Or did they only take the first couple of thousand applications, and I'm SOL? -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
|
|
|
Feb 3 2006, 09:33 AM
Post
#15
|
|
Member Group: Members Posts: 370 Joined: 12-September 05 From: France Member No.: 495 |
QUOTE (dvandorn @ Feb 3 2006, 07:19 AM) I registered with Stardust@home as soon as its existence was revealed on the forum, here. I've yet to hear anything at all back from them. Has anyone heard from them? Or did they only take the first couple of thousand applications, and I'm SOL? -the other Doug I also registred the same day I created this thread but received no news from them. Rakhir |
|
|
Feb 3 2006, 09:59 AM
Post
#16
|
|
Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
No news yet - I doubt they'll send out emails for the 'test' until they have proper imagery ready to go - so end of this month, beginning of next I'd guess
Doug |
|
|
Feb 3 2006, 12:11 PM
Post
#17
|
|
Member Group: Members Posts: 688 Joined: 20-April 05 From: Sweden Member No.: 273 |
QUOTE (akuo @ Jan 9 2006, 04:20 PM) Is there some sort of explanation from the Stardust team why this detection cannot be done by a computer program scanning the images? Are the marks left by interstellar dust so unpredictable that human work is needed? How does the person know what to look for then? Because people have an image processing and pattern recognition software package that has had about 1,000,000,000 years of development work invested in it. tty |
|
|
Guest_PhilCo126_* |
Feb 3 2006, 09:03 PM
Post
#18
|
Guests |
Well, with Stardust (finally) at home... I remember reading something that the rest of the capsule might be displayed at the Natioanl Air & Space Museum in Washington D.C.
|
|
|
Feb 4 2006, 02:03 AM
Post
#19
|
|
Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
QUOTE (PhilCo126 @ Feb 3 2006, 04:03 PM) Well, with Stardust (finally) at home... I remember reading something that the rest of the capsule might be displayed at the Natioanl Air & Space Museum in Washington D.C. This got me thinking: What will they eventually do with the Genesis return capsule? -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
|
|
Feb 4 2006, 02:33 AM
Post
#20
|
|
Senior Member Group: Admin Posts: 4763 Joined: 15-March 05 From: Glendale, AZ Member No.: 197 |
QUOTE (tty @ Feb 3 2006, 12:11 PM) Because people have an image processing and pattern recognition software package that has had about 1,000,000,000 years of development work invested in it. With open source algorithms! -------------------- If Occam had heard my theory, things would be very different now.
|
|
|
Guest_BruceMoomaw_* |
Feb 4 2006, 08:18 AM
Post
#21
|
Guests |
|
|
|
Apr 28 2006, 09:02 AM
Post
#22
|
|
Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
TPS members will be pleased to see that you can now do the 'beta' testing phase - interface is actually very good, I'm enjoying it.
QUOTE Your score: 10 out of 10 Passing score: 8 out of 10 I'm a pro, me. Doug |
|
|
Guest_BruceMoomaw_* |
Apr 28 2006, 10:29 AM
Post
#23
|
Guests |
An LPSC abstract on the results from the first test of Stardust@Home's likely reliability shows promising results: http://www.lpi.usra.edu/meetings/lpsc2006/pdf/2225.pdf . (There's also a description of it from the previous year's LPSC: http://www.lpi.usra.edu/meetings/lpsc2005/pdf/1908.pdf .)
|
|
|
Apr 28 2006, 10:45 AM
Post
#24
|
|
Junior Member Group: Members Posts: 48 Joined: 10-February 05 Member No.: 166 |
|
|
|
Apr 28 2006, 08:18 PM
Post
#25
|
|
Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
This got me thinking: What will they eventually do with the Genesis return capsule? They'll display it in 23 museums across the US of A! Bob Shaw -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
|
|
|
Guest_BruceMoomaw_* |
Apr 28 2006, 10:00 PM
Post
#26
|
Guests |
In a bag...
|
|
|
Apr 28 2006, 10:56 PM
Post
#27
|
|
Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
To be fair, the samples may be scrap, but the aeroshell is recognisable - but I don't think they'd want to display it by any stretch of the imagination. It would be like exhibiting the dent in your bumper before getting an insurance quote for your car.
Doug |
|
|
Apr 28 2006, 11:04 PM
Post
#28
|
|
Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
|
|
|
Apr 28 2006, 11:26 PM
Post
#29
|
|
Forum Contributor Group: Members Posts: 1372 Joined: 8-February 04 From: North East Florida, USA. Member No.: 11 |
I passed the Stardust@Home training, 10/10
|
|
|
Apr 29 2006, 12:23 PM
Post
#30
|
|
Senior Member Group: Members Posts: 2488 Joined: 17-April 05 From: Glasgow, Scotland, UK Member No.: 239 |
To be fair, the samples may be scrap, but the aeroshell is recognisable - but I don't think they'd want to display it by any stretch of the imagination. It would be like exhibiting the dent in your bumper before getting an insurance quote for your car. Doug Doug: Actually, all the more reason to display it - the debris should be preserved in the (several) places where the errors were made which resulted in the parachute failure, along with a full presentation about the causes, the enquiries, and the lessons learned in terms of physical and management procedures! But they'll probably quietly lose it. Bob Shaw -------------------- Remember: Time Flies like the wind - but Fruit Flies like bananas!
|
|
|
Apr 29 2006, 04:59 PM
Post
#31
|
|
Member Group: Members Posts: 688 Joined: 20-April 05 From: Sweden Member No.: 273 |
|
|
|
Aug 2 2006, 03:25 AM
Post
#32
|
|
Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
I finally received an e-mail saying that Stardust@home is launching. The e-mail gave a link to the Berkeley people who operate the various distributed processing projects out there.
Unfortunately, the site is non-functional -- the banner links to actually get started working on the project aren't working (aren't even links, are just plain text), and the message says that the website might be either slow or unresponsive because of the high volume of traffic. I'm hoping the links start working in the next day or two -- I'm anxious to get started! -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
|
|
|
Aug 2 2006, 07:09 AM
Post
#33
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Got that e-mail last night too - And after celebrating finally our national holiday (pang, boom, whoosh... ) I was able to pass the test about the ten VM-movies and then to create an account (and to print my Planetary Society Certificate ).
Actually I had to start with the test twice because the website also went down for some time. Then later I was able to log in and start with some real VM-movies (1...25) until I got a lock-out again. As far as I can see I only found (or got the) tracks in the sporadical appearing calibrated movies and ranked (circa) on the 350 of 1880 place... -------------------- |
|
|
Aug 2 2006, 04:51 PM
Post
#34
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
QUOTE Latest News: Aug. 2, 2006 - 7:26am We have shut down the training, testing and VM section of the Stardust@home website because of a problem in which random images of unknown origin appear in the focus movies... http://stardustathome.ssl.berkeley.edu/for...topic.php?t=172 I saw a wedding group picture too. -------------------- |
|
|
Aug 2 2006, 08:14 PM
Post
#35
|
|
Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
An hacker attack ongoing?!?
-------------------- I always think before posting! - Marco -
|
|
|
Aug 4 2006, 05:21 AM
Post
#36
|
|
Newbie Group: Members Posts: 7 Joined: 4-August 06 Member No.: 1006 |
An hacker attack ongoing?!? I think they were just overwelmed. They are up again now and performing very well. Statistics for robreeve Your Overall Score: 96 Total Movies Viewed: 410 Your Rank: 1062 out of 5411 Specificity: 100% Sensitivity: 89% [I have to work on that sensitivity] <grin> Stardust found: Particle number Total viewings Number of Agreements Official status Stardust@Home Team OfficialComment Movie 39071 14 3 Indeterminate Movie 20962 15 3 Indeterminate Movie 41699 17 4 Indeterminate Movie 43214 16 4 Indeterminate Movie 22712 17 2 Indeterminate |
|
|
Aug 4 2006, 11:10 AM
Post
#37
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Hi Rob, welcome to UMSF!
Statistic for "greuti": Calibration Movies Answered Correctly 471 Calibration Movies Answered Incorrectly 3 Your Overall Score: 468 Total Real Movies Viewed: 1230 Your Rank: 45 out of 5641 Specificity: 100% Sensitivity: 99% It seems to be a form of race There're some searchers with a lower score in front of me - I guess they've still no failings Slowly I need a real feeling of success by finding a real (new) track instead of these calibration movies... I hope that's already a real search and not merely another screening of serious searchers... -------------------- |
|
|
Aug 4 2006, 11:36 AM
Post
#38
|
|
Newbie Group: Members Posts: 7 Joined: 4-August 06 Member No.: 1006 |
1230 Movies! You should have some events there, click the "My events" tab. If I found 5 possibles in 300, you shluld have more after 1230....
|
|
|
Aug 4 2006, 12:26 PM
Post
#39
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Yes I clicked two at the beginning (status "Indeterminate" too), but meantime I think that aren't real tracks or particles (later I've still found more of them without clicking on).
What I find is that a lot of movies are not in good focus (with little scope below the surface). In such movies you wouldn't see the track as defined ring but at most as faint dark spot or a form of shadow. -------------------- |
|
|
Aug 4 2006, 03:37 PM
Post
#40
|
|
Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
What I find is that a lot of movies are not in good focus (with little scope below the surface). In such movies you wouldn't see the track as defined ring but at most as faint dark spot or a form of shadow. Hi Tman! Usually I categorize "bad focus" these images (perhaps you're smarter than me )... sometimes entire movie is out of focus! Anyway, congrats for the 1230 movies!!! Where do you find all such time? Or, again, you are faster/smarter than me??? Edit: I also found two very small tracks (status indeterminate too, most people didn't see anything) Statistics for dilo Your Overall Score: 25 Total Movies Viewed: 114 Your Rank: 1955 out of 6110 Specificity: 94% Sensitivity: 85% -------------------- I always think before posting! - Marco -
|
|
|
Aug 4 2006, 05:21 PM
Post
#41
|
|
Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
The stardust info I read said that there were expected to be "several dozen" particles trapped in the collector. If there are about 100 particles to be viewed in the eventual 700,000 focus movies, that would be about one per 7,000 movies. It would be a shame to view thousands of movies and then miss the one particle that was present in them.
I recall there were to be test movies presented every so often similar to the instructional movies containing examples of particles. I wonder how often. I would think there are more test particle images than real particles scattered amongst the movies. I wonder if they will tell you if you have identified a test particle image. |
|
|
Aug 4 2006, 05:28 PM
Post
#42
|
|
Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
I wonder if they will tell you if you have identified a test particle image. No way, they report as "my event" only real particles observed in Stardust samples. FYI, the incidence of "calibration movies" is 25-30% of the total (based on my experience). -------------------- I always think before posting! - Marco -
|
|
|
Aug 4 2006, 05:55 PM
Post
#43
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
If you click on a movie (test or real) including a track and your score dosen't increase then you probably found a new track. Btw. the adress in your browser shows (so far) whether it's a test movie or a real movie
@dilo, fortunately, I work currently temporary -------------------- |
|
|
Aug 4 2006, 11:32 PM
Post
#44
|
|
Newbie Group: Members Posts: 7 Joined: 4-August 06 Member No.: 1006 |
By the way, they advertise on the site that you will get 20% test movies.
Statistics for robreeve Your Overall Score: 117 Total Movies Viewed: 524 Your Rank: 1062 out of 6476 Specificity: 100% Sensitivity: 88% Movie 39071 21 3 Indeterminate Movie 20962 21 4 Indeterminate Movie 41699 30 6 Indeterminate Movie 43214 26 8 Indeterminate Movie 22712 24 3 Indeterminate Movie 41954 17 4 Indeterminate Movie 41322 32 6 Indeterminate |
|
|
Aug 5 2006, 01:14 AM
Post
#45
|
|
Member Group: Members Posts: 510 Joined: 17-March 05 From: Southeast Michigan Member No.: 209 |
Heh, here's my stats - just signed up:
Your Rank: 65535 out of 6543 Specificity: unknown Sensitivity: unknown How's that for an ego hit when your rank is so far below the number of participants! This is fun, and not too bad on my dialup connection. The movies are taking ~3 minutes to come down, so it's not too bad. It'll take a while to get up over 1000, though. -------------------- --O'Dave
|
|
|
Aug 5 2006, 01:50 AM
Post
#46
|
|
Newbie Group: Members Posts: 7 Joined: 4-August 06 Member No.: 1006 |
I took you comment obout the URL telling test or real - and almosst immediately, got one that said real, found an obvious hit, and then my test hit went up by one. Looks like maybe they're onto ppl.
|
|
|
Aug 5 2006, 02:06 AM
Post
#47
|
|
Newbie Group: Members Posts: 7 Joined: 4-August 06 Member No.: 1006 |
|
|
|
Aug 5 2006, 06:05 AM
Post
#48
|
||
Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Did somone noticed these 3 small particles (light blue arrows) which appear always focused in all movies.
I think could be something on the microscope optics... anyway dangerous for false identifications, at least for a beginner! -------------------- I always think before posting! - Marco -
|
|
|
||
Aug 5 2006, 06:39 AM
Post
#49
|
|
Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
Finally got in and going, myself. Had an interesting one -- didn't take a screen cap or anything, since I just go along, give it my best shot, and go on to the next...
Anyway, there was one image that appeared to be pretty flat (no big slope on the subject), but two very, very small dark spots, maybe 1.5 microns or so based on the scale bar, came into focus at the deepest level. No track visible in any way, just a dark spot deep inside the aerogel. I marked the bigger of the two spots as a track, but that was a really soft identification. I've also run across several images that do come into focus, but the perfect surface focus point is at the deepest focus setting on the adjustment bar. I reported those as "bad focus," since I figure the point of the exercise is to zoom your focus down into the aerogel. Any movie that doesn't let you get below the surface is, I figure, guilt of a focus problem. Are y'all seeing the same kind of things? Seems like almost all of the tracks I've seen are the ones in the test images... though my scoresheet says I've identified something like six tracks, and while a couple of them only have corroboration by one or two other people (out of 20 to 30 views), some of them have been pegged by a dozen or more people. It's fun, and I feel like I'm actually doing something useful! -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
|
|
|
Aug 5 2006, 08:54 AM
Post
#50
|
|
Member Group: Members Posts: 510 Joined: 17-March 05 From: Southeast Michigan Member No.: 209 |
Did somone noticed these 3 small particles (light blue arrows) which appear always focused in all movies. I think could be something on the microscope optics I've seen them too, and I think you're right. One of the tutorial movies points out something similar as being dust on the camera. -------------------- --O'Dave
|
|
|
Aug 5 2006, 08:57 AM
Post
#51
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Doug, if you like to show what you've marked/stored in your "My Events" then you can copy the URL like this:
http://stardustathome.ssl.berkeley.edu/mye...?movie_id=43887 I think it shows something similar to that you've described... Above we've already touched on the focus problem. I report those as "bad focus" too - there're a real lot of them @dilo, I noticed they too. It's first something confusing but they do not change their form. -------------------- |
|
|
Aug 5 2006, 09:07 AM
Post
#52
|
|
Member Group: Members Posts: 257 Joined: 18-December 04 Member No.: 123 |
Seeing as we are posting stats....
My rank hasn't changed in ages. Guess I'm an average user so I stay pretty static. Your Overall Score: 82 Total Movies Viewed: 283 Your Rank: 2697 out of 6787 Specificity: 100% Sensitivity: 100% Movie 45071 41 3 Indeterminate Movie 32403 16 1 Indeterminate Movie 20236 29 3 Indeterminate Movie 34526 29 2 Indeterminate Movie 54510 46 1 Indeterminate Movie 44387 32 7 Indeterminate Movie 20324 35 6 Indeterminate -------------------- Turn the middle side topwise....TOPWISE!!
|
|
|
Aug 6 2006, 12:14 AM
Post
#53
|
|
Member Group: Members Posts: 356 Joined: 12-March 05 Member No.: 190 |
I'm having a terrible time with bad focus images. I've done maybe 100 "movies" and at least a third have the surface in focus WAY far away from the center of the slider bar. Some movies are so devoid of any features at all that I can't tell if I'm actually looking at different images or if the javascript has frozen up and I'm stuck on the same one. If we're looking for ~10 tracks in ~1 MILLION images I have little hope the method will deliver real results with this kind of performance. The images should contain a reticle fiducial like this which rests on the srface so the viewer can see immediately where the surface is.
It looks to me like all they've done is get a block of aerogel under the microscope, focus to the surface and tell the autoscanner/imager "ok here's the surface, scan the whole block assuming this level at xx microns will be where the surface is" regarless of surface level deviation, when what they should be doing is surface level calibrating every movie made by using a little piece of software to see where the highest contrast is (like a digital camera does) and or using a small/thin surface fiducial at the image edge. Also Dilo is right about those dots that appear on every image, it makes me think they didn't even flatfield calibrate the CCD on the imager before they started!! not good. On the other hand the user interface is pretty nice and natural to use. |
|
|
Aug 6 2006, 12:25 AM
Post
#54
|
|
Newbie Group: Members Posts: 7 Joined: 4-August 06 Member No.: 1006 |
I'm having a terrible time with bad focus images. I've done maybye 100 "movies" and at least a third have the surface in focus WAY far away from the center of the slider bar. Some movies are so devoid of any features at all that I can't tell if I'm actually looking at different images or if the javascript has frozen up and I'm stuck on the same one. If we're looking for ~10 tracks in ~1 MILLION images I have little hope the method will deliver real results with this kind of performance. The images should contain a reticle fiducial like this which rests on the srface so the viewer can see immediately where the surface is. It looks to me like all they've done is get a block of aerogel under the microscope, focus to the surface and tell the autoscanner/imager "ok here's the surface, scan the whole block assuming this level at xx microns will be where the surface is" regarless of surface level deviation, when what they should be doing is surface level calibrating every movie made by using a little piece of software to see where the highest contrast is (like a digital camera does) and or using a small/thin surface fiducial at the image edge. On the other hand the user interface is pretty nice and natural to use. Bah, Humbug you say. I've been 550 'real' slides now and I don't see that big a problem with the poorly focused examples. Just click bad focus and go on. the odds are low but... you might have one named after you! my stats: Your Overall Score: 186 Total Movies Viewed: 761 Your Rank: 885 out of 7330 Specificity: 100% Sensitivity: 89% Movie 20962 31 5 Indeterminate Movie 41699 41 9 Indeterminate Movie 43214 35 11 Indeterminate Movie 22712 37 3 Indeterminate Movie 41954 37 7 Indeterminate Movie 41322 47 7 Indeterminate Movie 43323 49 5 Indeterminate Movie 41590 46 10 Indeterminate Movie 41491 48 1 Indeterminate Movie 44039 28 4 Indeterminate |
|
|
Aug 6 2006, 08:55 AM
Post
#55
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Something about the small dark spots below the surface:
http://stardustathome.ssl.berkeley.edu/for...topic.php?t=476 @About the huge amount of "bad focus" movies, I bet they are working already on a better solution to approach and scan again those positions - a lot additional work though. @Rob, its not needed to quote the lot when you reply right after it. -------------------- |
|
|
Aug 6 2006, 06:15 PM
Post
#56
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Warning!
http://stardustathome.ssl.berkeley.edu/for...asc&start=0 It cost me at least 5 points with the same growing of my incorrect answers and a clean 100% 100%! And it's not yet well fixed so far! It's not important for the search - but angry for my glory ;-) -------------------- |
|
|
Aug 7 2006, 05:58 AM
Post
#57
|
|
Newbie Group: Members Posts: 7 Joined: 4-August 06 Member No.: 1006 |
I've had quite a few failed calibration movies (15) which I've looked at exhaustively and have not been able to 1. find my mistake or 2. I found the freaking track and got it wrong anyway. I stopped paying attention to that score, too fustrating to track; If they can't get it right I'm not going to worry anymore.
However, I can't help but wonder about the overall impact on the project, i.e.if ppl don't pay attention to their score, the testing program becomes ineffective, and quality control metrics go in the tank. Your Overall Score: 210 Total Movies Viewed: 870 Your Rank: 925 out of 8146 Specificity: 100% Sensitivity: 88% Movie 39071 37 4 Indeterminate Movie 20962 36 5 Indeterminate Movie 41699 52 11 Indeterminate Movie 43214 47 16 Indeterminate Movie 22712 55 3 Indeterminate Movie 41954 52 12 Indeterminate Movie 41322 62 10 Indeterminate Movie 43323 66 7 Indeterminate Movie 41590 53 11 Indeterminate Movie 41491 60 2 Indeterminate Movie 44039 36 4 Indeterminate |
|
|
Aug 8 2006, 05:49 AM
Post
#58
|
|
Member Group: Members Posts: 688 Joined: 20-April 05 From: Sweden Member No.: 273 |
Stardust-at-home's early travails have made it into Nature:
http://www.nature.com/news/2006/060731/full/060731-10.html tty |
|
|
Aug 8 2006, 09:41 PM
Post
#59
|
||
Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Very strange structure on movie 845194V1:
The particle on the top show an intriguing radial edge, like an impact crater; however, structure seems located on the surface (I report 3 movies images focalized respectively above, within and below surface from left to right). I didn't cataloghed as a track, but I still confued. -------------------- I always think before posting! - Marco -
|
|
|
||
Aug 9 2006, 07:26 AM
Post
#60
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Yea, there're some odd structures appearing at times. I guess it could be such a thing that according http://stardustathome.ssl.berkeley.edu/ss_...hedule_number=5 are not well-understood so far.
@about the calibration movies which had incorrect coordinates in them for the locations of the tracks (and gave you an incorrect answer back). Now it seems definitely fixed since monday. Also all movies got new IDs since then. So behind your first 10'000 movies, there should be no more impact to your score list (if you've scanned correctly through all of them) QUOTE You may be a starduster if... - you've started giving names to the dust in your house - instead of looking for your glasses in the morning, you try to find the focus bar - you're getting worried when you don't see Larry, Curly and Moe on your car windshield - there's a gutter in your mouse mat from rolling over the same two inches over and over again - when you're channel flipping and an old episode of The Simpsons comes on, you think "obviously a calibration movie" I guess "Larry, Curly and Moe" mean these 3 small (camera dust) particles which appear always focused in all movies. -------------------- |
|
|
Aug 9 2006, 06:13 PM
Post
#61
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
-------------------- |
|
|
Guest_AlexBlackwell_* |
Aug 14 2006, 08:02 PM
Post
#62
|
Guests |
Andrew Westphal is "glogging" for Emily this week. Check out his first entry.
|
|
|
Aug 16 2006, 05:24 AM
Post
#63
|
|
Senior Member Group: Members Posts: 2228 Joined: 1-December 04 From: Marble Falls, Texas, USA Member No.: 116 |
sorry about the flood...
Yeah, I just caught up with her blog today and noticed his informative entry. I wish he would have given a little more practical information for us searchers. After viewing a bunch of movies I am still a bit confused about some things. Still, his glog entry is the best so far. The first guy was, well, how should I put it? I'll bite my tongue. The second was better, but still not on the mark of what I had come to expect from Emily. If Andrew fills us in with some better information than the stardust@home site and forum has so far provided, he'll be a big hit with me. I think we all are waiting for one of the gloggers yet to come. I haven't found one, but is there a thread on that topic yet? I was going to start one several times, but chickened out. It's unfortunate that we haven't been given more guidance as this stardust thing has developed. Almost all of the anomalies I've seen have been inclusions that come to focus below the surface. One thing that is a real mystery to me is why all of the calibration tracks appear in focus only below the aerogel surface. I can understand why they remain in focus below the surface, but shouldn't they start _at_ the surface? Anyway, so far I am tagging anything that comes to a focus below an identifiable surface. There are a lot of others agreeing with my clicks, but I am sure they are not tracks. I haven't seen any real movies that resemble the calibration tracks. My search method is this... Evaluate the general focus of the movie, if possible identify the surface, determine the orientation of the surface (is it tilted in some direction, or does it have a more complex shape?), look for stuff that comes to a focus beneath any indentified surface. I've been getting a bit burned out on the movie viewing lately. If we got some feedback from the officials regarding some real tracks found, I could find some new energy. It is tough to view a lot of movies on dialup at home, and using my broadband connection at work was seriously affecting my productivity there. I had to consider who was writing my paychecks. I was hanging with the top 1000 until I had to make that hard decision. As for the top 100, I'll bite my tongue once more. After 1400+ total movies viewed, my rank is now lagging. It seems a shame that ranking seems to depend only on total movies viewed. I would have thought accuracy should be part of the equation. I think they are giving users the wrong feedback. I really could care less about the ranking, but I really want to identify a track. Perhaps they are really serious when they say "expect the unexpected." Although they theoretically expected only about 45 tracks in the whole array, I can only guess that they have not positively identified one yet. It hasn't been terribly active lately, but earlier there were more helpful comments posted in the freenode IRC channel #stardust@home... My current stats, which are not changing much lately... Calibration Movies Answered Correctly 339 Calibration Movies Answered Incorrectly 3 Your Overall Score: 336 Total Real Movies Viewed: 1082 Your Rank: 1351 out of 11176 Specificity: 100% Sensitivity: 98% -------------------- ...Tom
I'm not a Space Fan, I'm a Space Exploration Enthusiast. |
|
|
Aug 16 2006, 02:02 PM
Post
#64
|
|
Member Group: Members Posts: 510 Joined: 17-March 05 From: Southeast Michigan Member No.: 209 |
I realize this post is probably more appropriate at the stardust@home forums, but they're still a bit of a mess, IMHO. So for my fellow UMSF dusters...
One thing that is a real mystery to me is why all of the calibration tracks appear in focus only below the aerogel surface. I can understand why they remain in focus below the surface, but shouldn't they start _at_ the surface? I've wondered about this too. You may have noticed (on some of them) that before you get to the "soda straw" cross-sections, the aerogel tends to have a hazy/cloudy appearance just over it. I think this is the wide part of the carrot-shaped track, with the narrower part of the carrot being the in-focus soda straw, below the surface. The tutorial shows a nice, circular edge for the beginning of the track, but based on this image, I think the top is much more messy. Here's another image. It does seem odd to me that we don't see more disturbance at the surface over a track - my other theory was that the aerogel movies are upside down from the POV of the particle, but the documentation seems to disprove that. QUOTE Anyway, so far I am tagging anything that comes to a focus below an identifiable surface. Me too. Given that these particles are thought to be tiny, I think that anything that looks different should be marked for closer inspection. I figure that's why we're participating - the team can then use the "number of agreements" stat to filter and prioritize reviews. QUOTE It seems a shame that ranking seems to depend only on total movies viewed. I would have thought accuracy should be part of the equation. Accuracy is in the ranking equation, but it is definitely influenced by the number of movies viewed. From the definitions page: Score Your score is the total number of calibration movies you have identified correctly minus the number of calibration movies you have answered incorrectly. Most movies are not calibration movies, and will not affect your score. So don't be surprised if your score stays at 0 for a while. So from the current rankings page, rhar006 is #1 with a score of 9963. This means that they have answered 9963 calibration movies correctly. To get that high, rhar006 needs to be both very accurate and extremely dedicated (read:has no life ), as I am getting about 30% calibration movies. I'm with you though, I worry more about my accuracy percentages than where I'm at in the ranks. I'd rather look at fewer movies and have the team see that I know what I'm looking for. FWIW: Statistics for odave Calibration Movies Answered Correctly 303 Calibration Movies Answered Incorrectly 2 Your Overall Score: 301 Total Movies Viewed: 1000 Your Rank: 1534 out of 11253 Specificity: 100% Sensitivity: 99% -------------------- --O'Dave
|
|
|
Aug 17 2006, 01:33 AM
Post
#65
|
|
Member Group: Members Posts: 510 Joined: 17-March 05 From: Southeast Michigan Member No.: 209 |
FYI - there's a new update over at the stardust@home forums about the "interesting candidates" discovered so far. The two highest scored movies they list have features in them that look just like tracks on the calibration movies - but it's way to early to tell for sure. But still, very cool! Unfortunately most of my events are of the "black speck" variety, no soda-straws here yet
-------------------- --O'Dave
|
|
|
Aug 17 2006, 09:28 AM
Post
#66
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Yea, but in one of the two highest scored is the focus sure above the surface. There're many of such surface "circles"/structures among the movies.
The third is really interesting. If it's a track I wonder why it could broaden again. (Edited: oops I guess it dosen't broaden, it's a focus issue) Another interesting update: http://stardustathome.ssl.berkeley.edu/for...topic.php?t=874 As expected but even so astoundingly few such "cheaters" among the top 200. Now after a considerable quantity of searching, one observation is really a bit questionable to me: I'm sure I got several Real Movies at least twice and had in addition some déjà vu feelings. So I wonder why happens that at all. Shouldn't be the system so designed that each movie is checked off to you when you've made a decision? Mainly in view of the huge amount of movies which are still to scan - and personally I don't feel like searching through twice -------------------- |
|
|
Aug 22 2006, 08:37 AM
Post
#67
|
|
Member Group: Members Posts: 156 Joined: 18-March 05 From: Germany Member No.: 211 |
Some of my candidate movies have been checked and were found to be "Not Extraterrestrial" "inclusion". They are these dark spots that many others have spotted as well. So far I have only found such dark spots and I'm afraid that none of my candidates are of extraterrestrial origin.
Movie 3316648V1 158 40 Not Extraterrestrial inclusion Movie 3799221V1 158 38 Not Extraterrestrial inclusions Movie 4369380V1 169 37 Not Extraterrestrial inclusions Michael |
|
|
Aug 22 2006, 11:18 AM
Post
#68
|
||
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Hi Michael, nice to see you here!
Yea, these dark "particles/inclusions" were a "funny" Stardust@home "story" Meantime I do no more click they too. As far as I know, there're some possible tracks (even with the particle) but so far all like this example: http://stardustathome.ssl.berkeley.edu/ss_...edule_number=10 To find in the "I think I've found a track, what do you think?" thread: http://stardustathome.ssl.berkeley.edu/for...topic.php?t=647 Btw. I found the following movie of my teeny "interplanetary sun-glider" Regarding the real movies which appear twice or repeated. It seems all real movies get added to the same pool and then random selected to the VM. If so I hope that they retire them when they get past a certain number of viewings (and decisions) by different searchers. -------------------- |
|
|
||
Aug 22 2006, 02:26 PM
Post
#69
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Such a possible track with the particle (that I found few days ago too in ~36 place): http://stardustathome.ssl.berkeley.edu/mye...php?id=433711V1
I just saw in "My Events" that it passed cut 1 and got the official comment "another IDP" (does anybody know what IDP means?). -------------------- |
|
|
Aug 22 2006, 02:27 PM
Post
#70
|
|
Senior Member Group: Members Posts: 2228 Joined: 1-December 04 From: Marble Falls, Texas, USA Member No.: 116 |
odave, thanks for mentioning that update about the "interesting candidates." It's good to finally get some kind of feedback. I guess I'll stop selecting the inclusions also, but so far none of my movies have been reviewed yet.
-------------------- ...Tom
I'm not a Space Fan, I'm a Space Exploration Enthusiast. |
|
|
Aug 22 2006, 02:54 PM
Post
#71
|
|
Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
(does anybody know what IDP means?). Interstellar Dust Particle?
-------------------- |
|
|
Aug 22 2006, 03:15 PM
Post
#72
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
-------------------- |
|
|
Aug 22 2006, 04:27 PM
Post
#73
|
|
Member Group: Members Posts: 510 Joined: 17-March 05 From: Southeast Michigan Member No.: 209 |
From albutterworth's update, it's Interplanetary Dust Particle. That is,
It is an impact track, almost certainly not interstellar. It's trajectory will tell us whether it is likely to be secondary ejecta from the Stardust spacecraft solar panels, or an Interplanetary Dust Particle (IDP). The stardust@home definitions page is the official glossary, but IDP hasn't made it on there yet - they are updating it as they go. I've finally had one of my movies get marked as reviewed - "passed cut 1: weird WCO" (Worth Checking Out), so they are making progress... -------------------- --O'Dave
|
|
|
Aug 22 2006, 05:14 PM
Post
#74
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
Oh yea, thanks! I've read that article, but it seems not complete
Btw, this movie appears currently in my Events as "159 / 41 / Passed cut 1 / another IDP". Would say rather few of 159 that clicked on it. QUOTE I've finally had one of my movies get marked as reviewed - "passed cut 1: weird WCO" (Worth Checking Out), so they are making progress... Very weird if it's below the surface. -------------------- |
|
|
Aug 23 2006, 09:50 AM
Post
#75
|
||
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
There's a nice example of another type of impact track in the aerogel besides the straight tracks:
The focus is circa left of center of the track. Yesterday I found (in fifth place - of already 150 viewings!?) the right part of it and posted it right in the stardust forum. Anna (Stardust@home team) was so kind to point out that they've already found the left part of it (should I've known that - I should ). -------------------- |
|
|
||
Sep 14 2006, 04:07 PM
Post
#76
|
|
Member Group: Members Posts: 510 Joined: 17-March 05 From: Southeast Michigan Member No.: 209 |
One thing that is a real mystery to me is why all of the calibration tracks appear in focus only below the aerogel surface. I can understand why they remain in focus below the surface, but shouldn't they start _at_ the surface? In case anyone's interested, there's a new thread on the Stardust@home forums that discusses this. -------------------- --O'Dave
|
|
|
Sep 19 2006, 10:38 AM
Post
#77
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
It seems there're no longer Starduster here
Odave (or someone else) what do you think of my interpretation I've posted there? (Also because I don't know how coherent my "English syntax" is) Have a look at that image too that shows two tracks from particles which entered in the areogel by supersonic speed (which is also expected to interstellar particles): http://www.planetary.org/image/PIA02188.jpg QUOTE My interpretation of that we're looking at the tracks in the areogel is, the black distinct circle appears just around the widest points of the track because it's that point where the black border appears most distinct when we look straightly at it from above. In that view the "blurry section" is the distinct rounded border just beneath the surface. That explain also the unseeable bullet hole direct at the surface because there the track border is thinnest to our view. Additional it could be the interstellar particle was that tiny, that it caused a bullet hole at the direct surface which is either way too small for watching it in that magnification. -------------------- |
|
|
Sep 19 2006, 04:37 PM
Post
#78
|
|
Member Group: Members Posts: 510 Joined: 17-March 05 From: Southeast Michigan Member No.: 209 |
I agree with your interpretation of the tracks, TMan - and your syntax is just fine.
I'm still dusting, though only during my lunch break at work. I have dialup at home, and while the VM still works, the wait for a download is excruciating compared to broadband To date I've examined 2718 real movies and have marked 18 of them for possible tracks. Of those, two have passed the team's first cut as WCO. A few of my others I think should be WCO as well, but the team hasn't gotten to them yet. The rest of them are probably terrestrial inclusions. I haven't been the first one to click on anything yet, but I'll be happy to be one of the "agreements" on any real IS dust particles The number of new S@H participants joining per day seems to be levelling off, with the total number hanging around 15,000. I'm staying at about the same level in the ranks for the 1/2 hour or so I do a day. I wonder how many volunteers have stopped dusting? -------------------- --O'Dave
|
|
|
Sep 19 2006, 06:41 PM
Post
#79
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
O' Dave thanks for the nice comment.
I slowed down dramatically one week ago or so. I'm concerned about less news on the scanning process and the handling with the existing movies. If the actual process is that what we have here, then we could have (long ago) a "coffee break" until new movies are coming in. It shows a pool of circa 80'000 existing Real Movies. When I take my score of ~19'500 seen Real Movies and extrapolate it with all the other searchers, I guess we have seen already all these movies sufficiently - Even yourself got the same Real Movie several times (which could be likely in this system of one (movie) pool sadly). As far I'm not in the know where we actually stand in the process and whether seen movies will taken out or not (and if so which quantity of them remain), I not really feel like doing further in the search. Therefore I will probably leave sooner or later the "illustrious" first hundred... I guess Apropos first hundred, I'm struck there're some searchers who be thinking about to search in each movie of the finally ~700'000 several times... My current statistic: Calibration Movies Answered Correctly: 7440 Calibration Movies Answered Incorrectly: 9 Your Overall Score: 7431 Total Real Movies Viewed: 19463 Your Rank: 54 out of 15138 Specificity: 99.92% Sensitivity: 99.84% Marked 30 of them for possible tracks (none of them as the first one too). Following have got a comment so far: Movie 7249257V1 / 167 47 Passed cut 1 IS candidate lower right Movie 5714462V1 / 198 77 Not Extraterrestrial inclusions Movie 433711V1 / 251 57 Passed cut 1 another IDP Movie 7933874V1 / 221 8 Indeterminate (but well-known by the Team) Movie 7567884V1 / 186 45 Passed cut 1 unknown, WCO Movie 8130472V1 / 129 45 Passed cut 1 IDP? The still not commented rest are probably mostly terrestrial inclusions too. If you like to have a look at, then copy and paste the movie ID in that example Movie 433711V1 -------------------- |
|
|
Sep 21 2006, 09:11 PM
Post
#80
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
http://stardustathome.ssl.berkeley.edu/for...opic.php?t=1186
But it wasn't the reason of lack of information - that is still misty to me. Some clarifications though: http://stardustathome.ssl.berkeley.edu/for...&highlight= -------------------- |
|
|
Sep 24 2006, 07:54 PM
Post
#81
|
|
Member Group: Members Posts: 877 Joined: 7-March 05 From: Switzerland Member No.: 186 |
The number of new S@H participants joining per day seems to be levelling off, with the total number hanging around 15,000. I'm staying at about the same level in the ranks for the 1/2 hour or so I do a day. I wonder how many volunteers have stopped dusting? Few days ago I started a new account in order to receive an impression of the (rear) activities there. I was a little surprised by reaching ranks around 3400 rather soon - already after seen 500 Real Movies. Don't know what that means exactly, but "regularly" at work were sure less than 3000 until now. -------------------- |
|
|
Lo-Fi Version | Time is now: 19th June 2024 - 03:50 AM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |