Jagadish Chandra Bose · Jagadish Chandra Bose Jagadish Chandra Bose (1858 – 1937) was a Bengali...
1
Jagadish Chandra Jagadish Chandra Bose Bose Jagadish Chandra Bose (1858 – 1937) was a Bengali polymath: a physicist, biologist, botanist, archaeologist, and writer of science fiction. He pioneered the investigation of radio and microwave optics, made significant contributions to radio and microwave optics, made significant contributions to plant science, and laid the foundations of experimental science in the Indian subcontinent. Born in Bengal during the British Raj, Bose graduated from Born in Bengal during the British Raj, Bose graduated from St. Xavier’s college in Calcutta. He went to England to pursue higher studies. In addition to receiving the Natural Science Tripos from the University of Cambridge, Bose obtained a degree from the University of London in 1884. obtained a degree from the University of London in 1884. On his return to India in 1885, Bose was appointed professor of physical science at Presidency College, Calcutta, and retained this post until 1915. In 1917, he founded and Sir Jagadish Chandra Bose Presidency College, Calcutta, and retained this post until 1915. In 1917, he founded and became director of the Bose Research Institute, Calcutta. The British throne bestowed knighthood upon him in 1917 and in 1920, Bose became the first Indian to be elected a Fellow of the Royal Society. J. C. Bose publicly demonstrated the existence and propagation of wireless waves in 1885. His work on devices for receiving the polarization of electrical waves was later exploited by Guglielmo Marconi who designed a long distance radio signaling device, for which he was awarded the Nobel Prize. Bose’s place in history has recently been re-evaluated (IEEE), and he is credited with the invention of the first wireless detection Transmitting and Receiving Antenna device and the discovery of millimeter length electromagnetic waves and is considered a pioneer in the field of biophysics. Sir J. C. Bose holds the first patent worldwide to invent a solid-state diode detector to Transmitting and Receiving Antenna detect electromagnetic waves. The detector was built using a semi-conducting galena crystal. He worked at millimeter wavelengths which were almost nonexistent for nearly 50 years. This clearly shows that J.C. Bose was much ahead of his time. He was the first from the Indian subcontinent to obtain a US patent in 1904. Similar to his contributions in the field of physical sciences, Jagadish Chandra Bose is also well known for his research into the life of plants. It was Bose who explained that plants also suffer pain like us. also suffer pain like us. His most famous work concerned his investigations into plant physiology and the similarities between the behavioral response of plant and animal tissue. By devising extremely response of plant and animal tissue. By devising extremely sensitive instruments like crescograph, he was able to demonstrate the minute movements of plants subjected to external stimuli and measure their rate of growth. Crescograph
Transcript of Jagadish Chandra Bose · Jagadish Chandra Bose Jagadish Chandra Bose (1858 – 1937) was a Bengali...
Jagadish Chandra Jagadish Chandra BoseBoseJagadish Chandra Jagadish Chandra BoseBoseJagadish Chandra Bose (1858 – 1937) was a Bengalipolymath: a physicist, biologist, botanist, archaeologist, andwriter of science fiction. He pioneered the investigation ofradio and microwave optics, made significant contributions toradio and microwave optics, made significant contributions toplant science, and laid the foundations of experimentalscience in the Indian subcontinent.
Born in Bengal during the British Raj, Bose graduated fromBorn in Bengal during the British Raj, Bose graduated fromSt. Xavier’s college in Calcutta. He went to England topursue higher studies. In addition to receiving the NaturalScience Tripos from the University of Cambridge, Boseobtained a degree from the University of London in 1884.obtained a degree from the University of London in 1884.
On his return to India in 1885, Bose was appointed professor of physical science atPresidency College, Calcutta, and retained this post until 1915. In 1917, he founded and
Sir Jagadish Chandra Bose
Presidency College, Calcutta, and retained this post until 1915. In 1917, he founded andbecame director of the Bose Research Institute, Calcutta. The British thronebestowed knighthood upon him in 1917 and in 1920, Bose became the first Indianto be elected a Fellow of the Royal Society.
J. C. Bose publicly demonstrated the existence andpropagation of wireless waves in 1885. His work ondevices for receiving the polarization of electrical waveswas later exploited by Guglielmo Marconi who designedwas later exploited by Guglielmo Marconi who designeda long distance radio signaling device, for which he wasawarded the Nobel Prize. Bose’s place in history hasrecently been re-evaluated (IEEE), and he is creditedwith the invention of the first wireless detection
Transmitting and Receiving Antennawith the invention of the first wireless detectiondevice and the discovery of millimeter length
electromagnetic waves and is considered a pioneer in the field of biophysics.
Sir J. C. Bose holds the first patent worldwide to invent a solid-state diode detector to
Transmitting and Receiving Antenna
Sir J. C. Bose holds the first patent worldwide to invent a solid-state diode detector todetect electromagnetic waves. The detector was built using a semi-conducting galenacrystal. He worked at millimeter wavelengths which were almost nonexistent for nearly50 years. This clearly shows that J.C. Bose was much ahead of his time. He was thefirst from the Indian subcontinent to obtain a US patent in 1904.first from the Indian subcontinent to obtain a US patent in 1904.
Similar to his contributions in the field of physical sciences,Jagadish Chandra Bose is also well known for his researchinto the life of plants. It was Bose who explained that plantsalso suffer pain like us.also suffer pain like us.
His most famous work concerned his investigations into plantphysiology and the similarities between the behavioralresponse of plant and animal tissue. By devising extremelyresponse of plant and animal tissue. By devising extremelysensitive instruments like crescograph, he was able todemonstrate the minute movements of plants subjected toexternal stimuli and measure their rate of growth.
Crescograph
