Ask David Saltzberg About Being The Big Bang Theory's Science Advisor

For seven seasons Dr. David Saltzberg has made sure the science on the CBS sitcom The Big Bang Theory is correct. As science consultant for the show he reviews scripts for technical errors, fixing any problems he finds. He also adds complex formulae to whiteboards on set. Before his life as a science advisor, Saltzberg received his Ph.D. in physics from the University of Chicago, performed post-graduate work at CERN, and currently is a Professor of Physics and Astronomy at UCLA. He writes The Big Blog Theory, where he explains the science behind each episode of the show. Dr. Saltzberg has agreed to answer any questions you have about the show or his previous scientific work. As usual, ask as many as you'd like, but please, one per post.

Comments

I've a bone to pick

[oh_my_080980980]

In season 3 episode 1, where Sheldon was being mocked for saying he confirmed string theory, Sheldon gave a speech about Einstein and Einstein's greatest blunder, the cosmological constant. Barry Kripke responded that research into dark matter vindicated the cosmological constant and therefore it was not a blunder.

The problem - the assertion by Barry Kripke was wrong. Einstein's blunder was he invented the cosmological constant to show a static universe. At the time it was not known if the universe was moving or not. Einstein's early equations showed a moving universe. That bothered him, so he invented the cosmological constant to show a static universe. Later Einstein met astronomer Irwin Hubble who was able to show Einstein the universe was moving and not static. The cosmological constant was a blunder in that it was used to show a static universe. The fact that the cosmological constant was used elsewhere successfully is irrelevant; that did not change the mistake Einstein made.

Someone should have picked up in that.