Bengali may refer to:

Radio is the transmission of signals through free space by electromagnetic waves with frequencies significantly below visible light, in the radio frequency range, from about 3 kHz to 300 GHz. These waves are called radio waves. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space.

Information, such as sound, is carried by systematically changing (modulating) some property of the radiated waves, such as their amplitude, frequency, phase, or pulse width. When radio waves strike an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form.

The etymology of "radio" or "radiotelegraphy" reveals that it was called "wireless telegraphy," which was shortened to "wireless" in Britain. The prefix radio- in the sense of wireless transmission, was first recorded in the word radioconductor, a description provided by the French physicist Édouard Branly in 1897. It is based on the verb to radiate (in Latin "radius" means "spoke of a wheel, beam of light, ray").

Rituparna Sengupta (Ritupôrna Shengupta; born 7 November 1971) is an Indian actress. She is the leading actress in Bengali Cinema for the last decade in India, and is also currently performing in some well known Hindi Cinema.

Sengupta was born on 7 November 1971 in Calcutta. She was active in the arts since a young age, learning painting, dancing, singing and handicrafts at a painting school, called Chitrangshu, in childhood. She studied at Mount Carmel school, and later graduated in History from Lady Brabourne College. She began studying for a M.A. at Calcutta University, but had to interrupt studies to concentrate on her career as an actress.

Sengupta got married to her childhood sweetheart Sanjay Chakrabarty, founder and CEO of MobiApps on 13 December 1999 in Kolkata and the couple had a daughter in 14 July 2011 . They also have an older son named Ankan. She is actively involved in the cause of children suffering from Thalassaemia. She is also into outdoor sports and plays badminton as a pastime.