Domain: astroengine.com
Stories and comments across the archive that link to astroengine.com.
Comments · 6
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Re:0.15 degree from a 3.7 kelvin... that's "cool"
This is extremely preliminary. It is likely that later work will be able to increase it further. And even an increase in a few degrees centigrade would have practical impacts. Moreover, the ability to make metamaterials of this sort may lead to superconductors with different ranges wherein they engage in magnetic quenching https://en.wikipedia.org/wiki/Superconducting_magnet#Magnet_quench which is important for safe and practical use of superconductors even today. It isn't uncommon for a bad quenching event to damage a particle accelerator. A particular bad example happened to the LHC back in 2008 dealing serious damage to the accelerator http://astroengine.com/2008/10/18/lhc-quench-ripped-magnets-from-concrete-floor/. Yes, this isn't immediately practical but it looks like there's a lot of potential.
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More info
Found another article from 2008 that postulates that the Earth/Sun distance may also have an effect on isotope decay rates.
There was also some "fringe" claims back in the early 1990's about how high voltage electrical fields affect alpha decay in isotopes. A quick search turned up a patent.
If these claims are substantiated its going to hit more fields than we expect. IIRCC current theory's relating to atomic decay, both classic and quantum, state that the decay rate of unstable atoms is totally random and does not change under any normal conditions. This finding would seem to dispute that, even raising the possibility of accelerating the decay of radioactive atoms into stable one. Might be a way of dealing with the nuclear waste issues if its true and we can figure out how to induce it in the lab. Who knows, once we understand it we might be able to make the effect go the other way and create useful isotopes without needing a reactor.
No mater the case this is interesting. I'm looking forward to seeing more research on this. -
No confirmation from Cassini
One way to double-check the seasonal variation effect is to look at the output level on radioisotope power sources in spacecraft. Cooper (2008) found no relationship between radioactive decay and distance to the sun.
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47 Millions years OLD? Really?
Are you positively ABSOLUTELY sure it is 47 Million years OLD?
Really?
http://www.astroengine.com/?p=1382
-Hack
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Re:First tweets from space
Hmm, apparently being an astronaut is hard work, but it's also a great experience, and the views can't be beat!
Why even bother writing from space when he could have simply written those generic updates ahead of time? (Perhaps because that approach didn't work out so well for the Chinese.)
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Re:Colbert trumps Scientology; everyone wins.
NASA has a history of bowing to public pressure when it comes to naming things.