
4 0 c m
35cm
actual image size: 27cm x 32cm
Description
Photograph. Hertz (1857-1894) discovered 'Hertzian waves' (electromagnetic waves) and discovered that they behaved like light waves except for their wavelength. He was reputedly the first person to transmit and receive radio waves and the unit of frequency of radio waves is named after him.
Image Details
Image Ref.
10301840
© Science Museum / Science & Society Picture Library