Description: (Scottish Mathematician and Physicist Who First Created 'Artificial Ice')
Sir John Leslie, 4th Baronet, was a Scottish physicist and mathematician remembered for conducting research into heat. In 1802, he became the first person to give the first modern account of capillary action. In 1810, Leslie froze water using an air-pump, becoming the first person to produce ice artificially. He is also known for developing a device called Leslie cube.