- published: 24 Mar 2016
- views: 6804
In classical mechanics, linear momentum or translational momentum (pl. momenta; SI unit kg•m/s, or, equivalently, N•s) is the product of the mass and velocity of an object:
Like velocity, linear momentum is a vector quantity, possessing a direction as well as a magnitude. Linear momentum is also a conserved quantity, meaning that if a closed system is not affected by external forces, its total linear momentum cannot change. Although originally expressed in Newton's second law, the conservation of linear momentum also holds in special relativity and, with appropriate definitions, a (generalized) linear momentum conservation law holds in electrodynamics, quantum mechanics, quantum field theory, and general relativity. In relativistic mechanics, non-relativistic linear momentum is further multiplied by the Lorentz factor.
Morgan Freeman (born June 1, 1937) is an American actor, film director, aviator and narrator. Freeman has received Academy Award nominations for his performances in Street Smart, Driving Miss Daisy, The Shawshank Redemption and Invictus and won in 2005 for Million Dollar Baby. He has also won a Golden Globe Award and a Screen Actors Guild Award. Freeman has appeared in many other box office hits, including Unforgiven, Glory, Seven, Deep Impact, The Sum of All Fears, Bruce Almighty, Batman Begins, March of the Penguins, The Bucket List, Wanted, The Dark Knight, and RED.
Morgan Freeman was born in Memphis, Tennessee, the son of Mayme Edna (née Revere), a teacher, and Morgan Porterfield Freeman, a barber who died April 27, 1961, from cirrhosis. He has three older siblings. Freeman was sent as an infant to his paternal grandmother in Charleston, Mississippi. His family moved frequently during his childhood, living in Greenwood, Mississippi; Gary, Indiana; and finally Chicago, Illinois. Freeman made his acting debut at age 9, playing the lead role in a school play. He then attended Broad Street High School, later named Threadgill Elementary School, in Mississippi. At age 12, he won a statewide drama competition, and while still at Broad Street High School, he performed in a radio show based in Nashville, Tennessee. In 1955, he graduated from Broad Street, but turned down a partial drama scholarship from Jackson State University, opting instead to work as a mechanic in the United States Air Force.
William Sanford "Bill" Nye (born November 27, 1955), popularly known as Bill Nye the Science Guy, is an American science educator, comedian, television host, actor, mechanical engineer, and scientist. He is best known as the host of the Disney/PBS children's science show Bill Nye the Science Guy (1993–1998) and for his many subsequent appearances in popular media as a science educator.
William Sanford Nye was born in Washington, D.C., the son of Jacqueline (née Jenkins; c. 1920–2000), a codebreaker during World War II, and Edwin Darby "Ned" Nye (died 1997), also a World War II veteran whose experience in a Japanese prisoner of war camp led him to become a sundial enthusiast. Nye is a fourth-generation Washington, D.C. resident on his father's side of the family. After attending Lafayette Elementary and Alice Deal Junior High in the city, he was accepted to the private Sidwell Friends School on a partial scholarship, graduating in 1973. He studied mechanical engineering at Cornell University, where one of his professors was Carl Sagan, and graduated with a Bachelor of Science in 1977. He was awarded an honorary doctorate by The Johns Hopkins University in May 2008. In May 2011, Nye was awarded an Honorary Doctor of Science degree from Willamette University where he was the keynote speaker for that year's commencement exercises.
(Aimee Mann)
Verse 1:
Oh, for the sake of momentum
I've allowed my fears to get larger than life
And it's brought me to my current agendum
Whereupon I deny fulfillment has yet to arrive
Chorus:
And I know life is getting shorter
I can't bring myself to set the scene
Even when it's approaching torture
I've got my routine
Verse 2:
Oh, for the sake of momentum
Even though I agree with that stuff about seizing the day
But I hate to think of effort expended
All those minutes and days and hours
I have frittered away.
Chorus
And I know life is getting shorter
I can't bring myself to set the scene
Even when it's approaching torture
I've got my routine
Bridge 1:
But I can't confront the doubts I have
I can't admit that maybe the past was bad
And so, for the sake of momentum
I'm condemning the future to death
So it can match the past.
Bridge 2:
when I can't confront the doubts I have
I can't admit that maybe the past was bad
And so, for the sake of momentum
I'm condemning the future to death
So it can match the past.