So Who Invented Radio ???

 Sir Jagadish Chandra Bose, ( 30 November 1858 – 23 November 1937) was a Bengali Polymath, Physicist, Biologist, Botanist, Archeologist, as well as an early writer of science fiction. He pioneered the investigation of radio and microwave optics, made very significant contributions to plant science, and laid the foundations of experimental science in the Indian Sub-Continent.
 

Sir J.C Bose

Sir J. C. Bose invented the Mercury Coherer (together with the telephone receiver) used by Guglielmo Marconi to receive the radio signal in his first transatlantic radio communication over a distance of 2000 miles from Poldhu, UK to  Newfoundland, St. Johns in December 1901. Guglielmo Marconi was celebrated worldwide for this achievement. (In May 1897, two years after Bose's public demonstration in Kolkata, Guglielmo Marconi conducted his wireless signalling experiment on Salisbury Plain. Bose went to London on a lecture tour in 1896 and met Marconi, who was conducting wireless experiments for the British post office. In an interview, Bose expressed disinterest in commercial telegraphy and suggested others use his research work. )

Bose was sometimes, and not unnaturally, criticised as unpractical for making no profit from his inventions.
 

Crescograph

In 1895, Sir J. C. Bose gave his first public demonstration of electromagnetic waves, using them to ring a bell remotely and to explode some gunpowder. He sent an electromagnetic wave across 75 feet passing through walls and body of the Chairman, Lieutenant Governor of Bengal.

He was also the first to study the action of microwaves in plant tissues and corresponding changes in the cell membrane potential. He researched the mechanism of the seasonal effect on plants, the effect of chemical inhibitors on plant stimuli and the effect of temperature. From the analysis of the variation of the cell membrane potential of plants under different circumstances, he hypothesised that plants can "feel pain, understand affection etc." He  invented the Crescograph; a device that is used for measuring plant growth.