SIR ISAAC NEWTON 1642 - 1727 Free Science Videos for Kids

SIR ISAAC NEWTONSIR ISAAC NEWTON1642 - 17271642 - 1727

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Newton’s Laws of Newton’s Laws of MotionMotion

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His Formative YearsHis Formative Years• Born on December 25,

1642 (January 4, 1643) in Woolsthorpe, Lincolnshire, England

• Raised by his grandparents

• Pulled out of school at 14 to run the family farm

• Wasn’t good at farming, so they sent him back to school

The Newton residence, circa 1689


SchoolingSchooling

► Entered Trinity College at Entered Trinity College at Cambridge University at Cambridge University at age 18 and began age 18 and began studying to become a studying to become a ministerminister

► Graduated at age 23Graduated at age 23► Returned to the farm Returned to the farm

because of the Black because of the Black DeathDeath He got bored and ended up He got bored and ended up

working on the binomial working on the binomial theorem, light, telescopes, theorem, light, telescopes, calculus, and theologycalculus, and theology

Newton in about 1702


CalculusCalculus

► Started developing Calculus as Started developing Calculus as early as 1666 but never really early as 1666 but never really got around to publishing muchgot around to publishing much

► In about 1668, Wilhelm Leibniz In about 1668, Wilhelm Leibniz began developing very similar began developing very similar ideas and published them ideas and published them before Newton’s published his before Newton’s published his workwork

► Arguing ensuedArguing ensued► (Leibniz used dy/dx notation; (Leibniz used dy/dx notation;

Newton used ẏ)Newton used ẏ)


OpticksOpticks► Discovered that light is Discovered that light is

made up of a spectrum of made up of a spectrum of colorscolors

► Made the first telescope Made the first telescope that used a curved mirror that used a curved mirror instead of lensesinstead of lenses

► Believed that light was Believed that light was made up of “corpuscles” made up of “corpuscles” rather than waves (Hooke rather than waves (Hooke and Huygens disagreed)and Huygens disagreed)

► Didn’t publish any of this Didn’t publish any of this until the after the death of until the after the death of Hooke in 1703Hooke in 1703 Newton in the Lab


Apples and StuffApples and Stuff

► Formulated Newton’s Formulated Newton’s Laws Laws

► Proved that the force Proved that the force of gravity is inversely of gravity is inversely proportional to proportional to distance squareddistance squared

► After conquering After conquering gravity, motion and gravity, motion and optics, decided to optics, decided to work on changing work on changing lead into goldlead into gold


His BookHis Book

► Isaac Newton got Isaac Newton got a book published a book published called Principa.called Principa.

►Principa has Principa has Newton’s 3 laws Newton’s 3 laws of motion. of motion.


His laws of motionHis laws of motion

►1. An object in motion will stay in 1. An object in motion will stay in motion and an object at rest will stay at motion and an object at rest will stay at rest unless acted upon by an rest unless acted upon by an unbalanced force.unbalanced force.

►2. Force equals mass times 2. Force equals mass times acceleration.acceleration.

►3. For every action there is an equal 3. For every action there is an equal and opposite reaction. and opposite reaction.

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Newtonian TriviaNewtonian Trivia

► Became Master of the Became Master of the Royal Mint in 1699Royal Mint in 1699

► First scientist to be First scientist to be knighted for his work knighted for his work (1708)(1708)

► Elected President of the Elected President of the Royal Society every year Royal Society every year from 1703 to 1727from 1703 to 1727

► Member of Parliament Member of Parliament (1689-1690)(1689-1690)

► Died in 1727Died in 1727Newton in 1726


““I do not know what I may appear to I do not know what I may appear to the world, but to myself I seem to the world, but to myself I seem to have been only like a boy playing on have been only like a boy playing on the sea-shore, and diverting myself in the sea-shore, and diverting myself in now and then finding a smoother now and then finding a smoother pebble or a prettier shell than pebble or a prettier shell than ordinary, whilst the great ocean of ordinary, whilst the great ocean of truth lay all undiscovered before me.” truth lay all undiscovered before me.”

- Isaac Newton- Isaac Newton


Newton's Legacy Newton's Legacy

► Newton's laws of motion and Newton's laws of motion and gravity provided a basis for gravity provided a basis for predicting a wide variety of predicting a wide variety of different scientific or different scientific or engineering situations, engineering situations, especially the motion of especially the motion of celestial bodies.celestial bodies.

► His calculus proved vitally His calculus proved vitally important to the development important to the development of further scientific theories. of further scientific theories.

► Finally, he unified many of the Finally, he unified many of the isolated physics facts that had isolated physics facts that had been discovered earlier into a been discovered earlier into a satisfying system of laws.satisfying system of laws.


Newton’s Laws of Newton’s Laws of MotionMotion

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SIR ISAAC NEWTON 1642 - 1727 Free Science Videos for Kids