Gravitational Forces

055 - Gravitational Forces In this video Paul Andersen explains how gravitational forces differ from the other three fundamental forces; electromagnetic, strong, and weak. Gravitational forces are always attractive and operate at all scales. Even though gravitational forces are relatively small they dominate at the large scale. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Music Attribution Title: String Theory Artist: Herman Jolly http://sunsetvalley.bandcamp.com/track/string-theory All of the images are licensed under creative commons and public domain licensing: “Galaxy.” Wikipedia, the Free Encyclopedia, September 12, 2014. http://en.wikipedia.org/w/index.php?title=Galaxy&oldid=624554484. Inductiveload. English: Icon for an Earth Emblem, in the Tango Icon Theme Style., December 6, 2010. Own work. http://commons.wikimedia.org/wiki/File:Emblem-earth.svg. “Newton’s Law of Universal Gravitation.” Wikipedia, the Free Encyclopedia, September 11, 2014. http://en.wikipedia.org/w/index.php?title=Newton%27s_law_of_universal_gravitation&oldid=625134927. “Sun.” Wikipedia, the Free Encyclopedia, September 11, 2014. http://en.wikipedia.org/w/index.php?title=Sun&oldid=624691151. “Universe.” Wikipedia, the Free Encyclopedia, September 11, 2014. http://en.wikipedia.org/w/index.php?title=Universe&oldid=624877417. “Electromagnetism.” Wikipedia, the Free Encyclopedia, September 23, 2014. http://en.wikipedia.org/w/index.php?title=Electromagnetism&oldid=625353365. “Newton’s Law of Universal Gravitation.” Wikipedia, the Free Encyclopedia, September 11, 2014. http://en.wikipedia.org/w/index.php?title=Newton%27s_law_of_universal_gravitation&oldid=625134927. “Nucleon.” Wikipedia, the Free Encyclopedia, September 18, 2014. http://en.wikipedia.org/w/index.php?title=Nucleon&oldid=617579544. “Weak Interaction.” Wikipedia, the Free Encyclopedia, September 19, 2014. http://en.wikipedia.org/w/index.php?title=Weak_interaction&oldid=623963798.