Future Robot Space Explorers, Technological Developments |
Future Robot Space Explorers, Technological Developments |
Dec 12 2005, 08:29 PM
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#1
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Robotic 'spiders' could be the key to building large-scale structures in space,
according to ESA's Advanced Concepts Team. The tiny mechanical spiders would inch their way across large nets of fabric in space performing small tasks or lining up to create an antenna or some other structure. Full story: http://www.esa.int/esaCP/SEMHVXVLWFE_index_0.html ************************* Exploring Caves with Hopping Microbots Astrobiology Magazine Dec. 8, 2005 ************************* NASA-funded researchers are developing "hopping microbots" capable of exploring hazardous terrain, including underground caves and one day, to search for life below the surface of... http://www.kurzweilai.net/email/newsRedire...sID=5103&m=7610 -------------------- "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 |
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Dec 23 2005, 02:15 AM
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#2
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
A novel astronaut training system, innovative planetary landing technology and hydrogen gas storage in 0.1-mm micro-spheres are just some of the innovative ideas presented during the first Innovation Triangle Initiative (ITI) Final Presentation Day (FPD) at ESTEC.
Full story: http://www.esa.int/esaCP/SEMW058A9HE_Benefits_0.html -------------------- "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 |
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Dec 23 2005, 05:27 AM
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#3
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Senior Member Group: Members Posts: 1281 Joined: 18-December 04 From: San Diego, CA Member No.: 124 |
Interesting Variable Geometry "Walkers"
Science Article - ignore the unfortunate War of the Worlds tie in - Check out links at bottom of article Tet Walker Homepage A.N.T.S. Homepage - turn the sound down before clicking on it - it's a bit, um, graphic heavy as well. -------------------- Lyford Rome
"Zis is not nuts, zis is super-nuts!" Mathematician Richard Courant on viewing an Orion test |
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Guest_PhilCo126_* |
Dec 23 2005, 12:06 PM
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#4
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Guests |
On the excellent " The Planets " DVD set of BBC, Steve Squyres describe a robotic mission to the moon Europa... this is illustrated by a great animation showing a landing on Europa, melt down through the icy crust and underwater movement of a futuristic robotic probe
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Dec 23 2005, 02:24 PM
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#5
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
QUOTE (PhilCo126 @ Dec 23 2005, 07:06 AM) On the excellent " The Planets " DVD set of BBC, Steve Squyres describe a robotic mission to the moon Europa... this is illustrated by a great animation showing a landing on Europa, melt down through the icy crust and underwater movement of a futuristic robotic probe On the PBS special Life Beyond Earth, produced by Timothy Ferris, they had a segment depicting a lander on Europa and its ice-burrowing cryobot, which you can see a still of here: http://www.pbs.org/lifebeyondearth/alone/europa.html -------------------- "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 |
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Jan 11 2006, 02:28 PM
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#6
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Robonauts
Boston Globe January 9, 2006 ************************* The new robot designs for space exploration are part of a broader shift toward a vision of robots that are partners, not simply remote-controlled probes. At the Computer Science and Artificial Intelligence Laboratory at MIT, robots are developing the skills they'll need to be useful to people. The Mertz robot recognizes faces and distinguishes... http://www.kurzweilai.net/email/newsRedire...sID=5198&m=7610 -------------------- "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 |
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Jan 16 2006, 04:39 PM
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#7
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Crouching Tiger, Hidden Robot
http://www.astrobio.net/news/article1834.html Will robots one day rule the world? For decades this notion has both fascinated and terrified humans, our hungry imagination fed by Hollywood blockbusters and sci-fi novels. Now a new generation of robots promises a breakthrough in the world of Artificial Intelligence as they become capable of cognitive thought processes. -------------------- "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 |
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Guest_exobioquest_* |
Jan 16 2006, 06:24 PM
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#8
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Guests |
There are three futures of robotics:
1. Robots will eventually take over and kill us off. 2. Robots will forever be our slaves. 3. Humans will become robots. After a technological singularity anyone of these could happen. I personally think the 3rd is most likely. First, A artificial intelligence could be many times smarter then a person, yet still not sentient! Let me explain: urgers are needed for consciousness and sentience, if you have no desires you will just sit there like dumb sh!t and do absolutely nothing unless commanded to, basically like our present computers do. Us humans are full of urges but all of them we were designed with or designed with a propensity for (either by evolution or some deity what ever you want to believe). A well made AI will be designed with one urge: follow human orders!, it will do nothing else no matter how smart it is, so why would it rebel against its masters that it loves so much? No matter how stupid us humans are it will still do as we command, like a mother loving a retarded child. Second, if technology was available that could make you immortal, to allow you to feel and think things a million times better then your present body and mind could ever imagine, would you take up the offer? I sure as hell would, and those that reject the technology, specifically militantly will have little chance of victory against robotic armies controlled by cyborgs with far greater strategic and tactical planning abilities then any talking hairless monkey has. The rich and the powerful will likely be the first to have access to such technology, and since they already rule the world as is, they likely will not lose control of it simply because they upgraded their minds and bodies. Now imagine space travel without human form. Human space travel requires huge logistic to support organic bodies that need food, water and air. A robot will need only a source of electricity and a minimal of elements (for repairs and replication). Imagine sending robots to another star system at sub-light speeds, highly intelligent robots that are either non-sentient or carry the emulated minds of humans, they can spend hundred or even thousand of years cruising with ease. Time is nothing when you’re immortal and have a controllable sense of boredom. They will set up a base at their target star system on anything, even something as small and inhabitable as an asteroid, set up communications and then you can upload your mind there at the speed of light. No massive colony ships, no need for faster then light travel, no need for livable conditions. If some futurists are right unmanned space travel will be the only and best means of accessing space by the end of this century. |
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Jan 20 2006, 03:00 PM
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#9
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Spacecraft, heal thyself
Building spacecraft is a tough job. They are precision pieces of engineering that have to survive in the airless environment of space, where temperatures can swing from hundreds of degrees Celsius to hundreds of degree below zero in moments. Once a spacecraft is in orbit, engineers have virtually no chance of repairing anything that breaks. But what if a spacecraft could fix itself? Full story: http://www.esa.int/esaCP/SEMQKMMZCIE_index_0.html -------------------- "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 |
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Jan 26 2006, 05:24 PM
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#10
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
CRAYFISH HELP NASA EXPLORE COSMOS (Space & Astronomy News, 24/1/06)
Crayfish don't just blunder around in the dark bouncing off rocks but use a sophisticated sense of touch to form detailed mental images of their surroundings, an Australian researcher says. http://www.abc.net.au/science/news/space/S...ish_1553770.htm -------------------- "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 |
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Feb 2 2006, 09:35 PM
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#11
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Physics, abstract
physics/0602003 From: Sergi Valverde [view email] Date: Wed, 1 Feb 2006 12:07:27 GMT (742kb) Emergent Behavior in Agent Networks: Self-Organization in Wasp and Open Source Communities Authors: Sergi Valverde, Guy Theraulaz, Jacques Gautrais, Vincent Fourcassie, Ricard V. Sole Comments: 12 pages, 4 figures. Accepted for publication in the IEEE Intelligent Systems Special Issue on Self-Management through Self-Organization (2006) Subj-class: Physics and Society Understanding the complex dynamics of communities of software developers requires a view of such organizations as a network of interacting agents involving both goals and constraints. Beyond their special features, these systems display some overall patterns of organization not far from the ones seen in other types of organizations, including both natural and artificial entities. By looking at both software developers and social insects as agents interacting in a complex network, we found common statistical patterns of organization. Here, simple self-organizing processes leading to the formation of hierarchies in wasp colonies and open source communities are studied. Our analysis further validates simple models of formation of wasp hierarchies based on individual learning. In the open source community, a few members are clearly distinguished from the rest of the community with different reinforcement mechanisms. http://arxiv.org/abs/physics/0602003 -------------------- "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 |
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Feb 13 2006, 04:57 PM
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#12
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Thinking out of the box: how to challenge conventional space systems
Spacecraft must evolve. Advancing space research is no longer just about swapping old components for new, now it is about entirely rethinking what a space mission can do and how it achieves its goals. World experts are gathering at ESA on 21 February to exchange new ideas and stimulate unconventional thinking about space systems. Full story: http://www.esa.int/esaCP/SEMBYTLVGJE_index_0.html -------------------- "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 |
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Mar 10 2006, 03:55 AM
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#13
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Robotic 'pack mule' displays stunning reflexes
NewScientist.com news service Mar. 3, 2006 BigDog, a nimble, four-legged robot, is so surefooted it can negotiate steep slopes, cross rocky ground, and recover its balance even after being given a hefty kick. The machine, which moves like a cross between a goat and a pantomime horse, is being developed as a robotic pack mule for the US... http://www.kurzweilai.net/email/newsRedire...sID=5350&m=7610 -------------------- "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 |
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Mar 28 2006, 03:46 PM
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#14
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Next on NOVA: "The Great Robot Race"
http://www.pbs.org/nova/darpa Broadcast: Tuesday, March 28, 2006 at 8:00 p.m. ET/PT (NOVA airs Tuesdays on PBS at 8 p.m. Check your local listings as dates and times may vary.) Join NOVA for an exclusive backstage pass to the DARPA Grand Challenge--a raucous race for robotic, driverless vehicles sponsored by the Pentagon, which awards a $2 million purse to the winning team. Armed with artificial intelligence, laser-guided vision, GPS navigation, and 3-D mapping systems, the contenders are some of the world's most advanced robots. Yet even their formidable technology and mechanical prowess may not be enough to overcome the grueling 130-mile course through Nevada's desert terrain. From concept to construction to the final competition, "The Great Robot Race" delivers the absorbing inside story of clever engineers and their unyielding drive to create a champion, capturing the only aerial footage that exists of the Grand Challenge. Here's what you'll find on the companion Web site: PROFILES & INTERVIEW Meet the Teams Watch video clips and learn more about "Sandstorm," "Ghostrider," and 10 other racing robots. Cars That Drive Themselves In a lively interview, Stanford's Sebastian Thrun shares his excitement about real-world applications for autonomous vehicles. VIDEO & SLIDE SHOW Watch the Program The hour-long program will be available to view online starting on March 29. Video Extras See a wild and bumpy Grand Challenge practice run in the Mojave, find out how the motorcycle robot balances itself, and more. What Robots See In this slide show, look out through the "eyes" of computer-driven vehicles. Also, Links & Books, the Teacher's Guide, the program transcript, and more. http://www.pbs.org/nova/darpa -------------------- "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 |
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Apr 30 2006, 05:52 PM
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#15
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Senior Member Group: Members Posts: 1281 Joined: 18-December 04 From: San Diego, CA Member No.: 124 |
Um, yikes?
Engineers Unveil Futuristic Unmanned 'Crusher' Vehicle PHYSORG I see they don't think that the rocker-bogie system is the best, but Im not going to be the one to tell them. -------------------- Lyford Rome
"Zis is not nuts, zis is super-nuts!" Mathematician Richard Courant on viewing an Orion test |
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Apr 30 2006, 08:12 PM
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#16
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Member Group: Members Posts: 444 Joined: 1-July 05 From: New York City Member No.: 424 |
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May 2 2006, 03:32 PM
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#17
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
ENERGY TECH
- Researchers Focus On Spacecraft Power Storage http://www.spacedaily.com/reports/Research...er_Storage.html Kirtland AFB NM (SPX) May 02, 2006 - By the summer of 2007, a team of eight personnel serving at the Air Force Research Laboratory's Space Vehicles Directorate, Kirtland Air Force Base, N.M., believe their experiment consisting of three flywheels, spinning between 16,000 and 40,000 revolutions per minute, will demonstrate the innovative technology of combined attitude control and energy storage on a satellite. -------------------- "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 |
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May 2 2006, 04:00 PM
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#18
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Member Group: Members Posts: 903 Joined: 30-January 05 Member No.: 162 |
{I have no special training in radar}
However, I have wondered if illuminating a celestial object with a spacecraft onboard radio transmitter and analyzing the reflections on earth with the VLA would be useful. Might characterize surface properties, compositions, textures better than visible light. I assume the power requirements would be largish and a technique like this, if practical, would be more suited to a Prometheus type craft. |
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May 2 2006, 04:09 PM
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#19
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Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
Or better, the craft called 'earth'. Radar observations of NEO's, the moon and even, I believe, Mercury have been done from Earth using dishes like Arecibo and the DSN.
Doug |
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May 2 2006, 06:00 PM
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#20
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Member Group: Members Posts: 624 Joined: 10-August 05 Member No.: 460 |
ENERGY TECH - Researchers Focus On Spacecraft Power Storage http://www.spacedaily.com/reports/Research...er_Storage.html Kirtland AFB NM (SPX) May 02, 2006 - By the summer of 2007, a team of eight personnel serving at the Air Force Research Laboratory's Space Vehicles Directorate, Kirtland Air Force Base, N.M., believe their experiment consisting of three flywheels, spinning between 16,000 and 40,000 revolutions per minute, will demonstrate the innovative technology of combined attitude control and energy storage on a satellite. QUOTE "Once it is proven that flywheels can store and convert energy into electricity while simultaneously controlling satellite orientation, they will eliminate the need for heavy, chemical batteries on many satellite systems, thus significantly reducing spacecraft weight," he noted. That is a tall order, because you are basically substituting a fixed rotational inertia with a variable one, and predicting small changes in position on the bases of known changes in load - known, according to some accurate measure of current. The navigational accuracy would be slightly less than the combined temperature compensation and radiational shielding of the system. Lots of variables here. |
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May 2 2006, 06:54 PM
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#21
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Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
That is a tall order, because you are basically substituting a fixed rotational inertia with a variable one, and predicting small changes in position on the bases of known changes in load - known, according to some accurate measure of current. Interesting idea but I also can't see that it would be possible to accurately manage orientation\roll rates with just three such flywheels. It would be simpler with 6 (2 contra rotating flywheels for each axis). And then there is the question of redundancy. Possibly I've missed out on some stunning advances in mechanical engineering over the past few years but I suspect that this is something that really is only at a proof of concept level and a long way from being practical for long term\range missions. |
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May 2 2006, 07:59 PM
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#22
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Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
Hmmm... well, if you used a common transmission for all three flywheels, or if you can manage to add energy to all three of them in exactly the same increments at exactly the same time, then you're really operating as if you had three constant-speed CMGs, I would think.
-the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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May 2 2006, 09:29 PM
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#23
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Dublin Correspondent Group: Admin Posts: 1799 Joined: 28-March 05 From: Celbridge, Ireland Member No.: 220 |
Hmmm... well, if you used a common transmission for all three flywheels, or if you can manage to add energy to all three of them in exactly the same increments at exactly the same time, then you're really operating as if you had three constant-speed CMGs, I would think. That would just give you net rotation in the 3 axes. You need to be able to add energy into the system without adding any net angular momentum - the simplest way of doing that that I can think of is to have two contra rotating flywheels on each axis that are driven in such a way that energy inputs and outputs accelerate\decelerate contra-ratating pairs. In gyro pointing\rotation control mode they would be driven asymmetrically. So the simple problem is managing the changing angular momentum imparted by storing or bleeding off energy, or at least figuring out what the net change is that needs to be managed. With two contra rotating flywheels on each axis it should be theoretically straightforward to add\bleed energy in response to changing charge\load conditions without imparting any net additional angular momentum to the main body. The hard problem that I see arises when attempting to manage the angular momentum transferred to and from the flywheels (acting as gyros) with the sort of precision that would be needed to manage the pointing of the craft. The hardest problem for me is figuring out how to add or remove energy from a contrarotating pair when they have been put in an asymmetric state. Now it must be said that it's almost 20 years since I did any mecanical engineering work so I could be way off on this but my gut reaction is that a flywheel capable of storing a few hundred watts of power just can't be handled with that sort of delicacy. Also I never worked with any aerospace rated stuff and 20 years is a long time so maybe it is possible. |
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