By Gerard Kelly2014-01-26T00:00:00
You can learn a lot from looking at a light bulb. Just over 100 years ago physicist Max Planck did just that, and wondered what the steady, yellow glow around the bulb was caused by. The glow defied existing theories of the behaviour of light, and to explain it Planck had to invent the idea of the 'quantum', a tiny 'packet' of energy at the heart of light itself. Planck's solution soon had physicists the world over discussing the 'duality' of light – the idea that it functions both as a wave and as a particle. Out of this duality was born Quantum Theory – on which much of the science of the 20th century has been based.
2021-04-01T00:00:00Z
Vicky Walker is a writer and speaker, among other things. She writes about life, arts and culture, faith, and awkward moments in the form of books, articles, stories, and more, and she tweets a lot.
2021-04-01T00:00:00Z
Tom Holland is an award-winning historian, biographer and broadcaster. He is the author of a number of books, including most recently, Dominion: The making of the Western Mind (Little, Brown). He has written and presented a number of TV documentaries, for the BBC and Channel 4,on subjects ranging from ISIS ...
2021-04-01T00:00:00Z
Tola Mbakwe is a multimedia journalist for Premier.
Site powered by Webvision Cloud