C. V. Raman

In 1928, Raman and K. S. Krishnan — a research associate who, according to several historical accounts, carried out much of the day-to-day experimental work — demonstrated that light changes wavelength when scattered by transparent matter, using apparatus that began with sunlight and a simple prism before a spectrograph of Raman's own design made precise measurement possible. The Nobel committee proposed only Raman's name for the 1930 Physics Prize; Krishnan was never nominated, a decision some historians of Indian science have since described as not fully reflecting his role in the discovery.

Beyond the discovery itself, Raman went on to found and direct the Raman Research Institute in Bangalore and served as director of the Indian Institute of Science, sustaining a decades-long project of building Indian scientific institutions and training a generation of Indian physicists.

Raman spent over a decade pursuing serious physics research — beginning with the physics of Indian musical instruments — as a side interest while working full-time in the Indian Finance Department, before leaving that stable, well-paid civil-service position in 1917 to take an academic physics chair at Calcutta University at considerably lower pay.

In September 1921, during a voyage home to India from England aboard the S.S. Narkunda, Raman studied the deep blue colour of the Mediterranean Sea with a pocket spectroscope, and published his findings in Nature that November, directly challenging Lord Rayleigh's prevailing 1910 explanation that the sea's colour simply reflected the sky. That line of research into light scattering in transparent media culminated seven years later in the discovery of the effect that bears his name.

Noticing something the accepted explanation didn't quite cover, and turning it into a published challenge within weeks of returning home, is the kind of evidence this profile's curiosity score is built on. Curiosity