Gresham College Lectures
Gresham College has been providing free public lectures since 1597, making us London's oldest higher education institution. This podcast offers our recorded lectures that are free to access from the Gresham College website, or our YouTube channel.
Gresham College Lectures
What is a black hole?
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Gresham College
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The history of the black hole from the eighteenth century onwards. What is a black hole? Is it a solid body? Why black holes are the simplest objects in the universe. Black holes are black bodies: they obey the laws of aerodynamics. Do black holes exist? What is the evidence? How many are there...