Jim: The fireworks associated with giant black holes takes place in the accretion disk which is outside of the event horizon. The strong gravity of the hole is just like gravity anywhere it goes on out decreasing in strength by the inverse square law. In the accretion disk thing get pretty exciting because things get there by falling down a deep deep gravity well and their velocity or kinetic energy gets converted to heat when everything gets closer and closer together. A lot of heat. DT --- On Fri, 1/30/09, Jim Gibson <jimgibson00@yahoo.com> wrote:
From: Jim Gibson <jimgibson00@yahoo.com> Subject: [Utah-astronomy] Black holes leak? To: "Utah Astronomy" <utah-astronomy@mailman.xmission.com> Date: Friday, January 30, 2009, 7:00 AM After I read Joe’s blog I went over and read Sheena’s. In reading her article on ‘Light from the darkness’ I realized I have missed a step (or 10) along the way in my understanding of black holes. On TV when ever someone is discussing black holes they always emphasize that the gravity in the black hole is so intense that not even light can escape from it. So, how do we get these radio jets escaping from a black hole as depicted in the galaxy Centaurus A? Jim
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