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Who predicted that radio and other waves and rays exist?

Radio and radar waves, microwaves, infrared rays, light rays, ultraviolet rays, X-rays and gamma rays all form what is called the electromagnetic spectrum. They are all various kinds of radiant energy and they differ only in their wavelength of frequency. Those with long wavelengths are generally called waves and the shorter ones rays. Before 1800, only light was known, as …

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Nandini Sathpathy

Nandini Satpathy (born: 9 June 1931 – 4 August 2006) was an Indian politician and author. She was the Chief Minister of Odisha from June 1972 to December 1976. Nandini Sathpathy Nee Panigrahy was the daughter of Oriya writer, Kalindi Panigrahy. Her father, an influential writer, had founded the socialist Samajbadi Society and started the Oriya daily Dharitri in 1974. She …

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Nadira

Nadira was born as Farhat Ezekiel (some suggest Florence Ezekiel) on December 5, 1932 into a Baghdadi Jewish family in Nagpada, Central Bombay, a predominantly Muslim and Jewish locality. Her parents divorced when she was just four years old and she and her brothers were raised by her grandmother. She was still in her teens when she was spotted by …

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Who made a famous discovery in his bath?

Archimedes, the renowned Greek scientist who lived from about 287 to about 212 BC, was asked to find out whether the King’s crown was made of pure gold or of gold mixed with a less valuable metal. The story goes that one day, preoccupied with his seemingly impossible task, he filled his bath to full and the water overflowed as …

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