Doctor Jack’s Soapbox Seminars

25:50 | Dec 14th, 2008

The Tunguska Mystery -- it's a wrap!

15:58 | Nov 26th, 2008

The Tunguska impactor as magnetically-charged primordial black hole -- million-to-one longshot, or ... even money?

16:00 | Nov 17th, 2008

Magnetically-charged black holes as the final missing piece of the Tunguska mystery?

17:53 | Nov 10th, 2008

Black holes exploding with the force of a thousand all-out nuclear wars??? Jack’s kidding, right?

13:51 | Oct 27th, 2008

How a Mission to Moscow and a tip from Kip (Thorne, that is) finally turned Stephen Hawking's head around as regards black hole thermodynamics.

17:57 | Oct 21st, 2008

What Stephen Hawking didn't want you to know about black-hole entropy. (With special thanks to Jacob Bekenstein, for sharing his reminiscences.)

17:23 | Oct 13th, 2008

Can't Get Out of the Game. Black holes meet the Heat Death of the Universe!

18:31 | Oct 6th, 2008

Not from under a cabbage leaf, that's for sure!

17:23 | Sep 30th, 2008

What does it really take to make a universe, anyway?

16:39 | Sep 22nd, 2008

Why one Global Causality Violation can ruin your whole day.