Science Library - free educational site

Jagadish Bose

1858 - 1937

Jagadish Chandra Bose, 1858 - 1937

Sir Jagadish Chandra Bose was an Indian physicist who worked in the field of radio and plant science, and is considered one of India's greatest scientist.

  • Nationality
  • Indian

  • Subject
  • Physics

  • Fields
  • Biology, biophysics, botany, archeology

  • Distinctions
  • Nominated 'Father of Radio Science' by the IEEE (Institute of Electrical and Electronics Engineers).

    'Father of Bengali science fiction'.

    Bose Crater on the Moon.

    Companion of the Order of the Indian Empire (CIE), 1903.

  • Publications
  • Response in the Living and Non-Living, 1902, exploring the parallels between animal and plant tissues.

    The Nervous Mechanism of Plants, 1926.

    Adrisya Alok (Invisible Light), an 1894 paper on microwaves.

    On polarisation of electric rays by double-refracting crystals, first scientific paper, 1895.

    On a new electro-polariscope, 1895, paper published in the London journal Electrician

    Bose wrote Niruddesher Kahini (The Story of the Missing One) in 1896, which is one of the first Bengali science fiction stories.

  • Theories
  • Radio and microwave optics

    Plant science: conductivity, cell membrane potential variation in response to microwaves, seasonal variation, and temperature.

    Metal fatigue and parallels to living cells.

  • Experiments/Discoveries
  • Crescograph, an instrument he invented to measure plant response to stimuli.

    First to use semiconductor junctions to detect radio signals, studying wavelengths at the millimetre level. He is considered to have anticipated P- and N-type semiconductors by more than half a century.

    Microwave receiver and transmitter (so-called Coherer), which Bose refused to patent, on the principle that knowledge belonged to all humanity.

    Electrical response curve of cells to electrical stimuli, and the variation of this response in the presence of drugs, anaesthetics and poison.

Born and raised in British India, Bose went to Cambridge University and University of London. On his return to India, he became officiating professor of physics at Presidency college, where he encountered racism. He refused to accept a menial salry, far below that of his white counterparts, for three years, before this protest won him retrospective rights, and he was awarded the full salary, with arrears.

Despite the lack of financial support, or proper laboratory facilities, he was able to devise his own equipment and make breakthroughs in the field of wireless.






Choose a subject for more biographies

Latest Item on Science Library

The most recent article is:

Trigonometry

View this item in the topic:

Vectors and Trigonometry

and many more articles in the subject:

Subject of the Week

Environment

Environmental Science is the most important of all sciences. As the world enters a phase of climate change, unprecedented biodiversity loss, pollution and human population growth, the management of our environment is vital for our futures. Learn about Environmental Science on ScienceLibrary.info.

Environmental Science

Test your knowledge!

Question: Why is pi not a rational number, if the dimensions it describes are real and rational?




Go to the article about: Number Realms

Lugano English

Quote of the day...

Growth is one of the stupidest purposes ever invented by any culture. We've got to have an enough. We have got to ask growth for what, and why, for whom, and who pays the cost, and how long can it last, and what's the cost to the planet, and how much is enough?

ZumGuy Internet Promotions

SaraOrdine