Chladni experiment | Sound Waves: The Symphony of Physics
Dr Helen Czerski investigates the science behind the sounds and how Chladni used sand to see the shape of sound vibrations.Tweet
Silicon | Chemistry: A Volatile History
Silicon was discovered by Jöns Jacob Berzelius, a Swedish chemist, in 1824 by heating chips of potassium.
The ultraviolet catastrophe and black-body radiation | The Secrets of Quantum Physics
Max Planck was interested in why light changed colour as it got hotter, so built a black-body radiator to measure the frequency of light produced.