They work at Cal-Tech (California Tech)
Caltech
He works at California Institute of Technology, commonly referred to as Caltech. It exists outside of The Big Bang Theory and is located in Pasadena, California.
Dr Sheldon cooper (from the big bang theory said to raj "you dont work with me, you work for me"
Sheldon along with his other friends work at possibly USC
The Big Bang theory was proposed (happened) in the middle of the 20th Century.The theory, and the work exploring it, suggest that the Big Bang happened about 13.7 billion years ago.
Amy, like Leonard, Sheldon, Howard, and Raj, works at Caltech.
The history of the Big Bang theory began with the Big Bang's development from observations and theoretical considerations. Much of the theoretical work in cosmology now involves extensions and refinements to the basic Big Bang model.
Galileo did not contribute to the Big Bang Theory directly as his work focused on astronomy, not cosmology. The Big Bang Theory was developed in the 20th century based on evidence from observations of the universe's expansion. Galileo's contributions to astronomy include improving the telescope and making important astronomical observations, such as the phases of Venus and the moons of Jupiter.
Howard Wollowitz is an engineer, specializing in robotics, particularly those in space.
The General Theory of Relativity provides the general mathematical framework required to work out many of the details related to the expansion of the Universe - which really means that space itself is expanding!
The Big Bang was first posited by Belgian physicist and priest, Msgr. Georges Lemaitre, who developed the idea at some stage between 1927 and 1933, 1927 when he first proposed the expanding universe model, and 1933 when he published his most detailed paper on the model and it's implications for universe formation. Most of his work was based of Einstein's work on relativity. And over the years, scientists have found increasing evidence which supports the big bang theory, as Ken Mitchell above states.
Penny works as a pharmaceutical sales representative on the television show "The Big Bang Theory." She later quits this job to pursue her passion for acting.