Built on Facts

Archives for December, 2012

The Shadow Knows

On shadows, when they work, and when they don’t.

The shootings in Connecticut are a monstrous act of incomprehensible horror. For all the atrocities visited upon the world in the last hundred years, this is still without doubt among the most appallingly evil acts ever performed by a single person. And he is dead, and beyond the reach of human justice. Normally I’d wait…

Interference – on the moon!

Wow, lots of moon posts these days.  This one is going to talk about a question left by commenter ppnl a couple posts back: ppnl: So could you use a pair of one meter telescopes a kilometer apart to create a point of constructive interference on the moon as small as what would have been…

This wonderful headline showed up in my Facebook feed: U.S. ‘planned to blow up Moon’ with nuke during Cold War era to show Soviets might. This was a bit eyebrow-raising. Dr. Strangelove was a slightly unfair caricature, but the Cold War really did have a better-than-average share of nuttiness. Still – blowing up the moon?…