Theoretical physicist Jim Al-Khalili investigates the science of gravity in this two-part series, recreating groundbreaking experiments, including the moment when Galileo first worked out how to measure it. He visits the LIGO Lab in California, where gravitational waves were discovered, and unpacks the latest theories about the cosmos.
Air Date: October 29, 2018 - 45:16
Jim Al-Khalili helps design a smartphone app that volunteers use to demonstrate how gravity affects our weight and even the rate at which we age.
Air Date: October 22, 2018 - 44:20
Theoretical physicist Jim Al-Khalili seeks the true story of gravity and explores how Galileo, Newton, and Einstein revolutionized science.