Zeev's Turnips Talk Politics (ZTTP)

[seabass]

>>>are planes sturdy enough to cut through steel beams?<<<


Depends. Think of it this way.......put a 2x4 wood piece across two saw horses with about 5' between them. Start to beat softly on the wood with a sledge hammer and nothing much will happen. Beat a little harder and you may start to see some damage. Beat real hard and you'll break the wood in half.

"Note that the kinetic energy increases with the square of the speed. This means, for example, that if you are traveling twice as fast, you will have four times as much kinetic energy."

http://en.wikipedia.org/wiki/Kinetic_energy