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Infamous
Skeptic Friend
85 Posts |
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furshur
SFN Regular
USA
1536 Posts |
 Posted - 09/19/2003 : 13:02:21 [Permalink]
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This is regarding ONE fragment of the Shoemaker-levey comet strike on Jupiter.
quote:
Fragment A struck Jupiter with its kinetic energy equivalent to about 225,000 megatons of TNT creating plume which rose about 1000 km above the Jovian cloudtops. It was not long before the Hubble Space Telescope images of the fireball and impact site of fragment A were downloaded by thousand of observers. Many were surprised to see any effects from Earth. "We were thinking that we were going to have to go in with a microscope and you know stretch the image as hard as we could to pull out anything, but its just blasting away at us...unbelievable." - Hal Weaver
I think it is safe to say that a small satilite from earth will not turn Jupiter into a sun. Now if it was an obelisk and it was 2021 well..... |
If I knew then what I know now then I would know more now than I know. |
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Randy
SFN Regular
USA
1990 Posts |
Posted - 09/19/2003 : 13:51:37 [Permalink]
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| http://www.badastronomy.com/bad/misc/jupiter_galileo.html |
"We are all connected; to each other biologically, to the earth chemically, to the rest of the universe atomically."
"So you're made of detritus [from exploded stars]. Get over it. Or better yet, celebrate it. After all, what nobler thought can one cherish than that the universe lives within us all?"
-Neil DeGrasse Tyson |
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Dr. Mabuse
Septic Fiend
Sweden
9696 Posts |
Posted - 09/20/2003 : 03:08:20 [Permalink]
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quote:
Originally posted by Infamous
Have a look at this:
http://yowusa.com/Archive/Sep2003/Jupiter_attack/jupiter_attack.htm
Wow... these guys are serious.
If I'm interpreting them right they are saying that ALL plutonium nucleus are subject to fission if they capture any kind of neutron. I haven't read anything about that, so I must reserve my judgement on Plutonium. Of the uranium isotopes, both U-235 (considered weapons grade) and U-238 can absorb neutrons without going into fission. What happens depend on the energy of the neutron.
Pu-238 is not considered weapons grade.
http://www2.bnl.gov/CoN/nuc/P/Pu238.shtml says that Pu-238 radiates Alpha radiation, not neutrons, and the waste product is U-234.
Then, what about U-234, won't that cause fission? IT'S URANIUM For Christs sake!
Well, U-234 has a half life of about 250000 years. Decays with Alpha radiation into Th-230 (with a half life of ~75000 years, Alpha radiator again)
Sigh... won't happen much there.
Plutonium 238 decays in several steps with only alpha radiation down to Po-218 (with a half life of 3 million years), and which in only 0.02% of the cases decays in beta radiation instead of alpha.
Another thing they left out in the A-bomb schematics is the neutron infuser. (At least I think that is what it's called)
For a bomb to be effective, it needs to fission as much material as possible, as fast as possible. And even if every fission is potentially capable of triggering two new fissions, all bombs use some means to trigger a massive start. Just kind of lighting a dynamite stick. It will burn bright, but in order to make it explode you need a detonator cap.
The satellite doesn't have such a trigger. It doesn't have any explosives to instantly and symmetrically compress the (not spherical) plutonium.
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Dr. Mabuse - "When the going gets tough, the tough get Duct-tape..."
Dr. Mabuse whisper.mp3
"Equivocation is not just a job, for a creationist it's a way of life..." Dr. Mabuse
Support American Troops in Iraq:
Send them unarmed civilians for target practice..
Collateralmurder. |
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