It's the birthday of John Tyndall, who was born in 1820 in Leighlinbridge, Irela...

[المميز]

It's the birthday of John Tyndall, who was born in 1820 in Leighlinbridge, Ireland. Tyndall was among the first physicists to treat Earth's atmosphere as a thermodynamic system. To carry out his studies, he built instruments to measure how the atmosphere's molecular constituents absorb radiation. He also invented a respirator for firefighters and a more effective foghorn for ships