[trane250]

No mention of the actual scientist who came up with the asteroid collision theory- Nobel prize winning physicist Luis Alvarez, father of Walter.

Reminds me of another father-son physicist-geologist team, Albert and Hans Albert Einstein. The story goes that Hans Albert was working on a theory to predict silt buildup behind a dam funded by the Tennessee Valley Authority. Well Hans Albert got stuck and asked his father for help. It didn't take Albert long to come up with the right formula. In so doing, he showed why rivers meander instead of flowing in a straight line.

[blam]

"No mention of the actual scientist who came up with the asteroid collision theory- Nobel prize winning physicist Luis Alvarez, father of Walter."

You are correct, I got them mixed up and in fact have been thinking of Luis.