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").

Aparna Sen (née Dasgupta) (Bengali: অপর্ণা সেন Ôporna Shen; born 25 October 1945) is a critically acclaimed Bengali Indian filmmaker, script writer, and actress. She is the winner of three National Film Awards and eight international film festival awards.

Aparna Sen was born in Calcutta to a Bengali family, originally from East Bengal (now Bangladesh). Her father is the veteran critic and film-maker Chidananda Dasgupta. Her mother Supriya Dasgupta is the cousin of renowned Bengali poet Jibanananda Das. She spent her childhood in Hazaribagh and Kolkata and had her schooling initially in South Point and later mostly in Modern High School for Girls, Kolkata.

She studied her B.A. English honors in Presidency College..

She met the Magnum photographer, Brian Brake, in Kolkata in 1961 when he was visiting India to photograph his Monsoon series. Brake used Sen as the model for what was to become one of his most well known photographs — a shot of a girl holding her face to the first drops of monsoon rain. The photo shoot was set up on a Kolkata rooftop with a ladder and a watering can. Sen described the shoot:

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.

Kumar Sanu (alias Kedarnath Bhattacharya, born in Kolkata) is a leading Indian Bollywood playback singer. He was awarded the Filmfare Best Male Playback Award over five consecutive years. The Government of India honoured him with the Padma Shri in 2009.

Kumar Sanu's father Pashupati Bhattacharya was a vocalist and composer. He trained Sanu as a singer and tabla player. After getting a degree in commerce from Calcutta University, Sanu began performing publicly in 1979, singing at shows and restaurants around Calcutta. He modeled his singing style after Bollywood singer Kishore Kumar. Later he developed his own singing style.

In 1987, music director and singer Jagjit Singh offered Sanu the chance to sing in the Hindi film Aandhiyan. Sanu then relocated to Mumbai, where Kalyanji-Anandji gave him chance to sing in the film Jaadugar. Kalyanji-Anandji suggested that he change his name from Kedar Nath Bhattacharya to Kumar Sanu.

Sanu started off singing Jagjit Singh's film songs, and went on to work with composers including Naushad, Ravindra Jain, Hridayanath Mangeshkar, Pt.R K Razdan, Kalyanji Anandji, and Usha Khanna.