Brian Cox explains why time travels in one direction - Wonders of the Universe - BBC Two
Subscribe and 🔔 to the BBC 👉 https://bit.ly/BBCYouTubeSub
Watch the BBC first on iPlayer 👉 https://bbc.in/iPlayer-Home More about this programme: http://www.bbc.co.uk/programmes/b00zf9dh
Professor Brian Cox builds sandcastles in the Namib Desert to explain why time travels in one direction. It is a result of a phenomenon called entropy; a law of physics that tells us any system tends towards disorder.
#bbc
All our TV channels and S4C are available to watch live through BBC iPlayer, although some programmes may not be available to stream online due to rights. If you would like to read more on what types of programmes are available to watch live, check the 'Are all programmes that are broadcast available on BBC iPlayer?' FAQ 👉 https://bbc.in/2m8ks6v.
