Question

mention some great physicist and their major contribution​

Answer 1

James Clerk Maxwell. In contrast to Newton and Einstein, Edinburgh-born Maxwell (1831-79) is virtually unknown to the general public. Yet his contribution to physics was every bit as significant, particularly his discovery of the theory of electromagnetism

Answer 2

Isaac Newton

Co-inventor of calculus, a major contributor to the science of optics and a gifted mathematician, Isaac Newton (1643-1727), who was born in Lincolnshire, outlined the laws of mechanics that now underpin vast swaths of classical physics. Most important of all, Newton outlined the principle of gravity, which explained how the planets revolve round the sun. During his life, he was showered with honours, including the presidency of the Royal Society. He is renowned as a supreme rationalist, though he actually wrote more about alchemy and religion, including a 300,000-word treatise that attempted to prove the pope was really the Antichrist .

Niels Bohr

Born in Copenhagen, Bohr (1885-1962) developed the modern idea of an atom, which has a nucleus at the centre with electrons revolving round it. When electrons move from one energy level to another, they emit discrete quanta of energy. The work won Bohr a Nobel prize in 1922. For his achievements, Carlsberg brewery gave Bohr a special gift: a house with a pipeline connected to its brewery next door, thus providing him with free beer for life. In 1954, Bohr helped establish Cern, the European particle physics facility. In 1975, his son, Aage, won a Nobel for research on atomic nuclei.

Galileo Galilei

Born in Pisa, Galileo (1564-1642) initially trained as a doctor. On hearing of the invention of the telescope in 1609, he built his own and turned it to the heavens, revealing the existence of sunspots and a pitted, mountainous surface on the moon: the heavens were not incorruptible. His studies also provided support for the idea that the Earth revolves round the sun. This got Galileo into considerable trouble with the Catholic church and he was forced to abandon that backing in 1633. His work on falling bodies also laid the groundwork for Newton’s subsequent theories.

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