Johnny Galecki
Leonard Hofstadter
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Cast
Episode Guide
- 1. Pilot Sep 24, 2007
- Leonard likes new neighbor Penny, but his roommate thinks he is chasing an impossible dream.
- 2. The Big Bran Hypothesis Oct 1, 2007
- Leonard volunteers to sign for a package, hoping to make a good impression on Penny.
- 3. The Fuzzy Boots Corollary Oct 8, 2007
- Unhappy that Penny is seeing someone, Leonard summons the courage to ask another woman out.
The Big Bang Theory is an American television sitcom created by Chuck Lorre and Bill Prady, both of whom served as executive producers and head writers on the series, along with Steven Molaro. It aired on CBS from September 24, 2007, to May 16, 2019, running for 12 seasons and 279 episodes.
- Big Bang
The Big Bang was the initiation of the continuing expansion...
- Jim Parsons
James Joseph Parsons (born March 24, 1973) is an American...
- Mayim Bialik
Mayim Chaya Bialik (/ ˈ m aɪ ɪ m b i ˈ ɑː l ɪ k / MY-im...
- Simon Helberg
Simon Maxwell Helberg (born December 9, 1980) is an American...
- Kevin Sussman
Kevin Sussman (born December 4, 1970) is an American actor...
- Penny
Penelope "Penny" Hofstadter is a fictional character from...
- Laura Spencer
Laura Spencer (born May 8, 1986) is an American actress. She...
- Season 12
The twelfth and final season of the American television...
- Raj Koothrappali
Rajesh "Raj" Ramayan Koothrappali, Ph.D. is a fictional...
- Bernadette Rostenkowski
The Big Bang Theory cast at Comic-Con 2009, from left: Kunal...
- Big Bang
- Philosophy and Medieval Temporal Finitism
- Early 20th Century Scientific Developments
- 1950 to 1990s
- 1990 Onwards
- See Also
- Further Reading
In medieval philosophy, there was much debate over whether the universe had a finite or infinite past (see Temporal finitism). The philosophy of Aristotle held that the universe had an infinite past, which caused problems for past Jewish and Islamic philosophers who were unable to reconcile the Aristotelian conception of the eternal with the Abraha...
Observationally, in the 1910s, Vesto Slipher and later, Carl Wilhelm Wirtz, determined that most spiral nebulae (now correctly called spiral galaxies) were receding from Earth. Slipher used spectroscopy to investigate the rotation periods of planets, the composition of planetary atmospheres, and was the first to observe the radial velocities of gal...
From around 1950 to 1965, the support for these theories was evenly divided, with a slight imbalance arising from the fact that the Big Bang theory could explain both the formation and the observed abundances of hydrogen and helium, whereas the Steady State could explain how they were formed, but not why they should have the observed abundances. Ho...
Huge advances in Big Bang cosmology were made in the 1990s and the early 21st century, as a result of major advances in telescope technology in combination with large amounts of satellite data, such as COBE, the Hubble Space Telescope and WMAP. In 1990, measurements from the COBE satellite showed that the spectrum of the CMB matches a 2.725 K black...
Kragh, Helge (1999). Cosmology and Controversy: The Historical Development of Two Theories of the Universe. Princeton University Press. ISBN 978-0-691-00546-1.
During the course of the series, 279 episodes of The Big Bang Theory aired, between September 24, 2007, and May 16, 2019. All seasons and episodes have been also released on DVD, Blu-ray, and Max .
The Big Bang Theory season 1. The first season of the American television sitcom The Big Bang Theory aired on CBS from September 24, 2007 to May 19, 2008. The Season 1 DVD came without a gag reel and is, so far, the only Big Bang Theory DVD set not to have one.
The Big Bang Theory is an American television sitcom created by Chuck Lorre and Bill Prady, both of whom served as executive producers and head writers on the series, along with Steven Molaro. It aired on CBS from September 24, 2007, to May 16, 2019, running for 12 seasons and 279 episodes.
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