Sir Isaac Newton Birthday Inventions Discoveries Photos Pictures

posted by chandramoulesh G K on 1/04/2010 05:12:00 PM | Permalink >> 0 Comments

Sir Isaac Newton was an English physicist, mathematician, astronomer, natural philosopher, alchemist, and theologian who is perceived and considered by a substantial number of scholars and the general public as one of the most influential scientists in history.

Born : 4 January 1643 Woolsthorpe-by-Colsterworth Lincolnshire, England
Died : 31 March 1727 (aged 84) Kensington, Middlesex, England

Newton is generally credited with the generalized binomial theorem, valid for any exponent. He discovered Newton's identities, Newton's method, classified cubic plane curves

Newton lectured on optics. During this period he investigated the refraction of light, demonstrating that a prism could decompose white light into a spectrum of colours, and that a lens and a second prism could recompose the multicoloured spectrum into white light.

Newton returned to his work on mechanics, i.e., gravitation and its effect on the orbits of planets, with reference to Kepler's laws of planetary motion.

Newton's laws of motion

Newton's First Law (Law of Inertia)
It states that an object at rest tends to stay at rest and that an object in uniform motion tends to stay in uniform motion unless acted upon by a net external force.

Newton's Second Law
It states that an applied force(F)on an object equals the rate of change of its momentum with time.

Newton's Third Law
It states that for every action there is an equal and opposite reaction. This means that any force exerted onto an object has a counterpart force that is exerted in the opposite direction back onto the first object.