Tyndall’s lectures at the Royal Institution, built around experiments a reader can picture: bells ringing in a vacuum, voices changed by hydrogen, sound reflected, refracted and bent around obstacles, and the windows of Erith shattered by a distant explosion. He goes on to the speed of sound, vibrating strings, rods and plates, reeds and organ pipes, and the human voice.
A model of popular science writing by one of the great Victorian lecturers. Download the free EPUB.