Jagadis Chandra Bose was a physicist at Presidency College in Calcutta, India, who pioneered the investigation of microwave optics in the later 1800's. He invented radio communication before Marconi. Many of his instruments are still on display and remain largely usable now, over 100 years later. They include various antennas, polarizers, and waveguides, all of which remain in use in modern forms today.
He was also known as an excellent teacher who believed in the use of classroom demonstrations, a trait apparently picked up while studying with Lord Rayleigh at Cambridge. He influenced many later Indian physicists, including Satyendra Bose (no relation) who later went on to be an influential figure in 20th century physics.
Later he turned his attention to plant physiology, where he gained a new sort of fame with continued claims that plants had nervous responses (of a sort) similar to those of animals. This led him to explore the effects of drugs on plants, and later, non-organic materials such as metals, which he claimed showed similar effects. Much of this was demonstrated through the use of a device he invented called the crescograph, which magnified mechanical movements many times and allowed for the direct study of plant growth.
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