English Experimental 60GHz microwave oscillator and receiver built by Jagadish Chandra Bose in 1894...
Commons Public Domain Mark 1.0falsefalse English Spark ball oscillator used in 1894 by Jagadish Chandra Bose to generate 60 GHz microwaves operator: Google...
English Diagram of a galena crystal radio wave detector invented by Jagadish Chandra Bose...
org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English Microwave experimental apparatus built by Augusto Righi 1894...
org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English Experiment demonstrating refraction of microwaves by a paraffin lens...