Io Blog |
Io Blog |
Feb 26 2008, 08:50 AM
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Senior Member Group: Moderator Posts: 3241 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Just let you all know about a new blog I've started called The Gish Bar Times located at http://gishbar.blogspot.com/ . I intend to use the blog to cover Io-related news like new papers or abstracts, developments with the flagship mission selection process, newly processed images, volcano news, or pretty photos taken of Io and Jupiter. I hope you all enjoy!
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Jul 28 2011, 06:19 PM
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Member Group: Members Posts: 890 Joined: 18-November 08 Member No.: 4489 |
nice pic but a small problem ( or very big if one has worked in the photographic darkrooms since 1985)
the over head florescent light - it is yellow-green and is missing some of the daylight spectra -- look at the back wall , it is yellow / green -- a closer white balanced might be this [attachment=24999:sulfvapo...ebalance.png] there is still too much yellow but seeing as the blue is missing from the over head florescent light , not much more can be done there is a reflection on the test tube of a window - it is close to #CCCCCC just a bit off PS. yes it is a bad habit and a side affect of the trade I can NOT look at peoples photos and NOT see what is wrong in the photoprocessing and do not even get me started on the "family album " |
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Jul 28 2011, 08:04 PM
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Junior Member Group: Members Posts: 94 Joined: 22-May 08 From: Loughborough Member No.: 4121 |
Wish I hadn't bothered now
Seriously though it was but an exercise in curiosity rather than accuracy - just finished writing the sulfur chapter for the new edition of Comprehensive Inorganic Chemistry and so was intrigued to see if you could trap these out and visualise them. Obviously plenty of people in the research area will have seen them during matrix studies, but it's not obvious that they've actually shown colour images (even approximate ones) before, though I'll happily (really!) be proved wrong. If the EPSRC want to fund me to accurately capture simulated planetary surfaces they're more than welcome, but it'll cost them a years PDRA and the dreaded Full Economic Costing Anyhow, the colour will be a function of precise temperature and so rather than the blunt force of liquid nitrogen we'd have to more subtely match the surface temperature of Io or wherever. Do-able, but not as a cheap and cheerful exercise over a lunch break. Interestingly in writing about the element, the role of such smaller allotropes in planetary science came to the fore even though it's light years away from my expertise. To a large extent this reflects the fact that it's been a vibrant area (and in the context of sorting out the structure of S4) over the last decade - which is good because anyone updating the story of sulfur comes up with the difficult task of funding stuff not covered in Steudel's astonishingly thorough 2 volume effort from 2003 (recommended for anyone who needs to know about the element in detail). PS Added in edit: we can actually get an idea of true colour by looking at the vacuum tubing on the left. This is well known to anyone in a lab - and in truth is somewhere in between the two versions. That said. to the naked eye the quenched sample did actually even more red than the photo suggests - really quite striking when it appeared. |
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