You are viewing a single thread.
View all comments View context
10 points

Nukes are crazy.

The mushroom cloud is actually caused by all the dust and debris that gets sucked up into the actual explosion.

Nuclear reactions happen at near light speed, and the heat from them does propagate at light speed.

permalink
report
parent
reply
1 point

I still struggle to see how that sudden reaction can create so much pressure, a regular explosive is creating heavy byproducts and is expanding the gases already present in the explosive, but the sudden heating of a small uranium core and the air around it can create a bigger explosion than a bomb thousands of times heavier? Boggles my mind

permalink
report
parent
reply
8 points

Yea, the concentration of energy trapped in matter is immense. People say matter is energy and e=mc^2 but you really have to do the calculations to see how much work that c squared is doing. A small grain of sand is probably more energy than the largest bomb, but the hard part is converting that matter into energy.

A hydrogen bomb (even bigger than a nuke,) converts less than a percent of the matter in the bomb to energy.

permalink
report
parent
reply
2 points

energy=mass x the speed of light squared.
its like a spacetime sneeze.

permalink
report
parent
reply
1 point

Well that’s the thing, conventional explosions convert chemical bonds into energy. Chemical bonds are fairly weak in the grand scheme of things.

Nuclear weapons convert nuclear bonds into energy. Atoms really like staying the atoms they currently are, so forcing them to convert all at once releases a ton of energy.

permalink
report
parent
reply

Science Memes

!science_memes@mander.xyz

Create post

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.



Rules

  1. Don’t throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.



Research Committee

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

Community stats

  • 11K

    Monthly active users

  • 3.2K

    Posts

  • 51K

    Comments