Does a teapot secretly hold the laws of physics? And what do soap, sugar and mint have to do with the perfect cup of tea? Whilst in Morocco, Professor Hannah Fry takes Michael Stevens (VSauce) into the surprising science of mint tea, from foamy bubbles that trap desert sand to the elegant S-shaped spout that appears to solve some of the hardest problems in fluid dynamics. Plus, your questions, including whether rising sea levels could change how your eggs boil, and just how much of Earth humans have actually touched. ------------------- For more information about Cancer Research UK, their research, breakthroughs and how you can support them, visit ⁠⁠https://cancerresearchuk.org/restisscience⁠⁠ 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. ------------------- Video Producer: Jack Meek Video & Social: Bex Tyrrell Animator: Sam Benson Assistant Producer: Lucy Lipscombe Producer: Simona Rata Senior Producer: Lauren Armstrong-Carter Head Of Digital: Samuel Oakley Exec Producer: Neil Fearn ------------------- 00:00 Intro 01:00 Cancer Research UK 02:19 Why Moroccan tea has lots of bubbles on top 07:08 The elegant Laminar Flow of Moroccan tea 15:19 If sea level changes outside of its normal range, will that change the time it takes to boil water, and therefore eggs? 24:05 What percentage of naturally occurring vertical surfaces on land have actually been traversed by humans? 29:58 How can I feel different textures while wearing socks? 35:55 Outro