Royal Institution Christmas Lectures (1966) : 59x2

In this lecture, Dr Chris van Tulleken investigates how we get energy from our food and how what we eat makes us who we are. He reveals how combustion engines get their energy in a series of controlled explosions – which he demonstrates using a kitchen cupboard of different foods. As the bangs get bigger, it becomes clear that our bodies can’t get their energy in the same way. Luckily, Chris shows us our bodies are much cleverer than even the most advanced engine.