In response to:

UN Needs to Declare Earth Asteriod Free Zone

An atomic blast would not work in the vacuum of space as you would think like the "fluid" of earth. Yes, air is considered a fluid, just like glass. It just moves at differing times. No "wake" of blast and no reactive substance (space is void). Sorry for the science dissertation.
Richard31 Wrote: Feb 25, 2013 10:01 PM
"Formerly David" is mostly right, however - most asteroids, unlike comets, will not blast off a great deal of mass when heated by the nuke. The nuke itself will vaporize completely, and the plasma will have a great deal of kinetic energy per mass unit - but _very_ little mass. Something like shooting a diesel train with a 50 caliber round.

On the other hand - even a very tiny change in vector can mean a miss of a million miles, if it is applied a long time before the collision. This is why detecting and analyzing asteroid orbits should be a _critical_ priority.
Texas Chris Wrote: Feb 25, 2013 10:47 AM
There is a mass-effect shock-wave in space from a nuclear blast. Probably not enough to move an asteroid, but there is a blast wave.

Detonating a nuke on the surface would have much better effect, though.
IddiKlu Wrote: Feb 25, 2013 10:39 AM
You are totally wrong! That's like the people in the 50's thinking that a rocket couldn't work in space, as it had nothing to push against.

A shame Americans are scientifically so ignorant. Shows what a wonderful school system we have.

Conservatives dislike big government. Liberals dislike big business.
Let's find common ground.
When big business gets in bed with big government, the baby is ugly.

Gun violence is down over time. Mass shootings are down over time. But the authoritarian mindset cannot let bloodshed go to waste. They will come after your rights at any opportunity, and this is an opportunity.

It's up to us whether the freedom grab stands or drives a reaction and change.

If Puritanism is the fear that someone, somewhere might be having fun, then liberalism is the fear...