Catalyst - Season 19, Episode 4 (How To Build A Time Machine)
Catalyst examines the science of time travel. What do we need to be able to do or understand to construct a functioning time machine? Dr Graham Phillips showcases the scientists working on the cutting edge of discovery.
Catalyst was broadcast on ABC at Wednesday 17 July 2019, 11:02.
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Catch up TV on Catalyst. Watch the latest and all other episodes of Catalyst now online, broadcasted on ABC1. Catch up on your favorite ABC1 TV show: Catalyst. Replay tv on its best! Australia's premier science investigation series.