Cambridge Astronomical Association
Cambridge Young Astronomers


Speaker Meeting

Hawking and the Edge of Physics
Friday 18th October 2019
Start time : 20:00

Speaker : Paul Fellows

The notion of a 'Dark Star' began with the calculations by John Mitchel who realized that Newton's laws of gravity and the finite nature of the speed of light could lead to stars which could not shine. We now call such monsters 'Black Holes'

In this lecture Paul will then move on to look at how Einstein revealed that gravity is the result of the curving of space and time and the implications that nothing could ever escape from a black hole and how this theoretical picture of a one-way trapdoor was the one which troubled the young researcher Steven Hawking.

Stephen's response was his 1976 paper which was the first to bring together three main pillars of scientific theory, Quantum Mechanics, General Relativity and Thermodynamics - a feat which had defeated Einstein and many others for 60 years.

The paper shocked the entire scientific world and began Stephen's rise to world fame.

Paul will explain the basis of the problems and how Stephen brought the ideas from these different theories to solve a fundamental aspect of the behavior of Black Holes.

In Stephen's own words "Black Holes aint so Black".

Paul is chairman of the Cambridge Astronomical Society and a keen amateur astronomer having built his first telescope in 1975, he now operates his own private observatory and takes many astronomical images of both deep sky and solar system objects. He studied at Emmanuel College Cambridge, from which he has an MA in Natural Sciences and a post-graduate Diploma in Computer Science. He is an elected Fellow of both the Royal Astronomical Society and the Institute of Engineering and Technology, and RAS Fellow to Cunard line as well as a part-time advisor and board member of a number of software and electronics design companies in the Cambridge area.

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