14 Apr 2026 The Rest Is Science
Is the kitchen home to some of the most extraordinary technology humans have ever invented? Professor Hannah Fry and Michael Stevens explore the science of everyday appliances, from the strange physics of coldness to the wartime origins of the microwave.

They explore how humanity learned to trap ‘coolth’, beam heat into leftovers, and turn the most ordinary room in the house into a high performance laboratory! From ice merchants and exploding eggs to magnetrons and magnetic fridges, this is the surprising story of the science hiding in plain sight.
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Cancer Research UK is a registered charity in England and Wales (1089464), Scotland (SC041666), the Isle of Man (1103) and Jersey (247). A company limited by guarantee. Registered company in England and Wales (4325234) and the Isle of Man (5713F). Registered address: 2 Redman Place, London, E20 1JQ.
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Video Producer: Oli Oakley
Video & Social: Bex Tyrrell
Animator: Sam Benson
Producer: Simona Rata
Senior Producer: Lauren Armstrong-Carter
Head Of Digital: Samuel Oakley
Exec Producer: Neil Fearn
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00:00 Intro
01:00 Why Hannah loves fridges
02:15 Cancer Research UK
03:25 The opposite of warmth
10:15 How to make ice without a freezer
13:34 How fridges work
16:35 The first ever fridge
19:55 Freezing a rubber band
25:50 How microwaves work
35:50 Defrosting a hamster
40:00 How the toaster was invented
42:33 Outro

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