« Reply #50 on: January 25, 2013, 10:20:05 PM »
Too close to land, and shallow isn't good, it coud bottom out.
Besides, if you are mining right, the sphere would be 10-20m in diameter, have a mass of up to 30,000 tons, and hit with several kilotons of energy even at subsonic speeds, and likely 10-30kT if mach 5-6 which would be easier. That's quite a wave, and it will penetrate 500-1000ft before really slowing down.
I retract my proposal.
I suggest Washington DC as a good landing site
Freedom is a heavy load, a great and strange burden for the spirit to undertake. It is not easy. It is not a gift given, but a choice made, and the choice may be a hard one. The road goes upward toward the light; but the laden traveller may never reach the end of it. - Ursula Le Guin
