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Batman

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#42789 10-Oct-2009 19:15
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Just a question - just how does NASA expect a TNT bomb to explode without oxygen? did the bomb carry its own O2 supply?

ok perhaps i dont understand astronomy - eg how do stars carry on burning without oxygen and supernovas etc ...

someone explain?




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tomgeeknz
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  #263127 10-Oct-2009 19:18
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They crashed an object into the moon with the power of said amount of TNT not useing TNT so explosives were not used.





Batman

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  #263131 10-Oct-2009 19:26
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oic hee hee. but it was a mere pixel's worth of an explosion that was!




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hellonearthisman
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  #263163 10-Oct-2009 21:01
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Only a few pixels to the on board camera, but other censors would have got more.
I like it's twitter messages, http://twitter.com/LCROSS_NASA

?And what's this thing coming toward me very fast? So big and flat and round,"
"it needs a big wide sounding name like 'Ow', 'Ownge', 'Round', 'Ground'!?
?That's it! Ground! Ha! I wonder if it'll be friends with me??

phlegmboy
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  #263186 10-Oct-2009 22:19
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Explosives don't need oxygen to work. They contain the oxidizer inside the explosive mix. If this was not the case then the explosive would have to be exposed to the air when would dramatically reduce it's effectiveness and would not ignite quickly enough to explode the first place.

I must admit that I found the lack of a show when LCROSS impacted somewhat disappointing. But it will be interesting to see the results.




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BurningBeard
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  #263424 12-Oct-2009 09:52
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joker97:
ok perhaps i dont understand astronomy - eg how do stars carry on burning without oxygen and supernovas etc ...


Stars don't produce heat & light through combustion like a fire on earth does - It is a nuclear process, not a chemical reaction. The energy comes from the nuclear fusion of atoms into heavier atoms, mostly hydrogen into helium.

http://helios.gsfc.nasa.gov/nucleo.html




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Handsomedan
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  #263465 12-Oct-2009 12:20
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I found it thoroughly amusing to see how instantly deflated they were...until they looked at the pixel. Then how utterly transformed they became...so excited!!!




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