- published: 10 Jun 2014
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Newton's cradle, named after Sir Isaac Newton, is a device that demonstrates conservation of momentum and energy using a series of swinging spheres. When one on the end is lifted and released, it strikes the stationary spheres; a force is transmitted through the stationary spheres and pushes the last one upward. The device is also known as Newton's balls or Executive Ball Clicker.
A typical Newton's cradle consists of a series of identically sized metal balls suspended in a metal frame so that they are just touching each other at rest. Each ball is attached to the frame by two wires of equal length angled away from each other. This restricts the pendulums' movements to the same plane.
If one ball is pulled away and is let to fall, it strikes the first ball in the series and comes to nearly a dead stop. The ball on the opposite side acquires most of the velocity and almost instantly swings in an arc almost as high as the release height of the last ball. This shows that the final ball receives most of the energy and momentum that was in the first ball. The impact produces a compression wave that propagates through the intermediate balls. Any efficiently elastic material such as steel will do this as long as the kinetic energy is temporarily stored as potential energy in the compression of the material rather than being lost as heat.
Sir Isaac Newton PRS (/ˈnjuːtən/; 25 December 1642 – 20 March 1726/27) was an English physicist and mathematician (described in his own day as a "natural philosopher") who is widely recognised as one of the most influential scientists of all time and as a key figure in the scientific revolution. His book Philosophiæ Naturalis Principia Mathematica ("Mathematical Principles of Natural Philosophy"), first published in 1687, laid the foundations for classical mechanics. Newton made seminal contributions to optics, and he shares credit with Gottfried Leibniz for the development of calculus.
Newton's Principia formulated the laws of motion and universal gravitation, which dominated scientists' view of the physical universe for the next three centuries. By deriving Kepler's laws of planetary motion from his mathematical description of gravity, and then using the same principles to account for the trajectories of comets, the tides, the precession of the equinoxes, and other phenomena, Newton removed the last doubts about the validity of the heliocentric model of the Solar System. This work also demonstrated that the motion of objects on Earth and of celestial bodies could be described by the same principles. His prediction that Earth should be shaped as an oblate spheroid was later vindicated by the measurements of Maupertuis, La Condamine, and others, which helped convince most Continental European scientists of the superiority of Newtonian mechanics over the earlier system of Descartes.
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Isaac Newton Biography Philosopher, Astronomer, Physicist, Scientist, Mathematician,(1643–1727) QUICK FACTS NAME Isaac Newton OCCUPATION Philosopher, Astronomer, Physicist, Scientist, Mathematician BIRTH DATE January 4, 1643 DEATH DATE March 31, 1727 EDUCATION University of Cambridge, Trinity College, The King's School PLACE OF BIRTH Woolsthorpe, Lincolnshire, England, United Kingdom PLACE OF DEATH London, England, United Kingdom AKA Isaac Newton FULL NAME Sir Isaac Newton
National Geographic Mystery Files Isaac Newton - Science Documentary Film 720p - Legend has it that Isaac Newton formulated gravitational theory in 1665 or 1666 after watching an apple fall and asking why the apple fell straight down, rather than sideways or even upward. "He showed that the force that makes the apple fall and that holds us on the ground is the same as the force that keeps the moon and planets in their orbits," said Martin Rees, President of Britain's Royal Society, the United Kingdom's national academy of science, which was once headed by Newton himself. ------------------------------------------------------------ Thanks for watching! Don't forget to subscribe @_@
BBC Documentary, Full Documentary, History - Sir Isaac Newton BBC Documentary, Full Documentary, History - Sir Isaac Newton Sir Isaac Newton PRS MP ( 25 December 1642 – 20 March 1726/7) was an English physicist and mathematician (described in his own day as a "natural philosopher") who is widely recognised as one of the most influential scientists of all time and as a key figure in the scientific revolution. His book Philosophiæ Naturalis Principia Mathematica ("Mathematical Principles of Natural Philosophy"), first published in 1687, laid the foundations for classical mechanics. Newton also made seminal contributions to optics and shares credit with Gottfried Leibniz for the development of calculus. Newton's Principia formulated the laws of motion and universal gravitation, which domina...
Download This Song: ► http://bit.ly/1qj97L1◄ Watch behind the scenes ► http://bit.ly/newtonnye ◄ "If I have seen further than others, it is by standing upon the shoulders of giants" ▼ CAST ▼ ========= Isaac Newton: Weird Al Yankovic http://www.weirdal.com https://twitter.com/alyankovic Neil deGrasse Tyson: Chali 2na http://www.chali2na.com http://youtube.com/chali2na Bill Nye: Nice Peter https://www.youtube.com/nicepeter https://twitter.com/nicepeter ▼ CREW ▼ ========= Executive Producers: Peter Shukoff & Lloyd Ahlquist Created by: Peter Shukoff & Lloyd Ahlquist Directed by: Nice Peter Written by: Nice Peter, EpicLLOYD & Zach Sherwin Staff Writers: Dante Cimadamore & Mike Betette Song Produced by: Nice Peter & Jose ""Choco"" Reynoso Song Mixed by: Nice Peter and Jose ""C...
A compilation of clips with NDT talking about his most admired scientist. I do not own any of the source material.
Don't miss new Big Think videos! Subscribe by clicking here: http://goo.gl/CPTsV5 Watch the rest of Niel deGrasse Tyson's interview http://bigthink.com/neildegrassetyson. Neil deGrasse Tyson says Newton's writings defy gravity by making his hair stand up. Question: Who's the greatest physicist in history?DeGrasse Tyson: Isaac Newton. I mean, just look... You read his writings. Hair stands up... I don't have hair there but if I did, it would stand up on the back of my neck. You read his writings, the man was connected to the universe in ways that I never seen another human being connected. It's kind of spooky actually. He discovers the laws of optics, figured out that white light is composed of colors. That's kind of freaky right there. You take your colors of the rainbow, put ...
"Isaac Newton today is venerated as one of the greatest scientists who ever lived -- the father of classical mechanics and co-creator of calculus. But in his day, Newton was known for many things, including some very bizarre behavior and a personality that might be considered quirky at best."* The Young Turks hosts Cenk Uygur breaks it down. *Read more here from David Freeman / Huffington Post: http://www.huffingtonpost.com/2013/10/09/isaac-newton-facts-physicist_n_4058836.html Download audio and video of the full two hour show on-demand + the members-only post game show by becoming a member at http://www.tytnetwork.com/member-options/. Your membership supports the day to day operations and is vital for our continued success and growth. Join The Young Turks Network mailing list http:/...