Re: SG-Ortillary

John Atkinson wrote:

> So you've got this big alloy dart coming in at .1 c.
> If e=mc^2, then a 100kg dart is going to release
> energy equivelant to what, a small nuclear weapon?
> I'll leave the conversion to precise kilotonnage to
> those who are into that stuff.

I think you want the formula for kinetic energy.

e = 1/2 m v^2

Even so, a K-gun round fired at a planet will make 
a big hole in something, or a lot of things.  For
killing vehicles and infantry, a K-1 gun would be 
sufficient.