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0answers
88 views

scaling laws for density and temperature of high-energy explosions

I'm wondering if there are heuristic ways to derive how the peak density and temperature of nuclear explosions scale with the amount of fissile/fusible material. Does it matter what the explosion ...
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3answers
383 views

the sounds of an exploding star

We know that space cannot spread a sound wave as there is no "air" or a medium that would support the spread of a sound wave. However if we put ourselves in the vicinity of an exploding star, would it ...
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2answers
525 views

Antimatter bomb

I stumbled upon this wikipedia article on antimatter weaponry. Being greatly appalled by the sad fact that large sums of money are being wasted on this, I could not stop myself from thinking for a ...
10
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4answers
558 views

Explosion in space

I'm curious about what happens if an explosive substance detonates in space. On Earth, I guess a good chunk of the energy released is carried away by shock waves in the atmosphere. But in space, the ...
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2answers
7k views

What would happen after the collision matter and the anti-matter [duplicate]

Possible Duplicate: What actually happens when an anti-matter projectile collides with matter? Suppose 1 kg of a stray meteorite anti-matter moves to the earth. What would happen after ...
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1answer
4k views

short circuit an alkaline battery

i'm not doing anything related to physics, but i'm just curious : What really happen when i short circuit an alkaline battery ? some article in the net shown that fire/explosion can be happened when ...
3
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1answer
718 views

Question about a nuclear bomb test photo

What are those white lines connecting the ground to the sky on the left side of this photo? I've see these before in the nuclear bomb test films too. They're apparently already in place upon ...
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0answers
172 views

Remnant of a supernova [duplicate]

i explain better A supernova remnant is the structure resulting from the explosion of a giant star . The supernova remnant is surrounded by an expanding shock wave that is formed from material ...
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3answers
1k views

If you throw dynamite into a pool of lava, will it explode or melt?

I was playing a table-top rpg with a friend. It was set... well it was pretty weird, so I won't get into it. Suffice it to say the bad guy had a stick of dynamite and we were on a volcano. I hit the ...
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1answer
4k views

Basic explosion physics - determining force

I'm using a game engine that has a ton of physics stuff built in. What I am currently trying to do is to simulation an explosion with F force in an x,y coordinate system and figure out how other items ...
4
votes
1answer
205 views

How can you tell a model explosion from the real thing?

Movies and TV shows frequently show buildings being bombed, cars blowing up, etc. Frequently these are really explosions of miniatures filmed up close. Aside from the speed that the explosion ...
3
votes
2answers
391 views

Burning alcohol vapor

Let's imagine a plastic container, sealed closed. We fill half of it with alcohol, then we generate a spark. The question is: can the mixture of alcohol and air burn, or do we need a hole to let air ...
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4answers
1k views

What determines the pitch of an explosion?

It's bonfire weekend here in the UK, and everybody is intent on shooting fireworks. I was wondering, what determines the pitch of the sound produced by an explosion? The sound has clearly a ...