David Saltzberg (right) hosts his "Geek of the Week," UCLA student Andrew Peck, on the set of The Big Bang Theory.
Sure, Bob Newhart may have won his first Emmy for guest-starring as Professor Proton on the hugely popular show
The Big Bang Theory, about four young scientists at Caltech. But behind the scenes is a real-life professor, David Saltzberg of UCLA.
Saltzberg
studies high-energy particle physics and high-energy neutrino
astronomy, using radio-detection techniques when he's not working as
The Big Bang Theory's science consultant.
"It's
just like a physics lab!" Saltzberg exclaims as he maneuvers around the
show's sprawling set. "You have to watch where you walk. There are
cables and everything everywhere."
Every week, Saltzberg
attends the show's live taping at the Warner Bros. lot in Burbank,
Calif. He makes sure the whiteboards are correct. For every new episode,
they're covered by a fresh scrawl of formulas dreamed up by Saltzberg
and admired by physicists for their scrupulous accuracy — and occasional
shoutouts to what's happening in the world of science.
"The whiteboards have dozens of fans," Saltzberg jokes.
Saltzberg
also reviews scripts in progress. They arrive with unfinished dialogue
and brackets reading, "Insert Science Here." He fills in the blanks, as
in an episode where Dr. Sheldon Cooper, a puffed-up theoretical
physicist, keeps bumming rides from a neighbor.
"She couldn't
understand why Sheldon never got a driver's license," Saltzberg
explains. When she asks what Sheldon was doing at age 16, when everyone
else was learning to drive, he answers, as per Saltzberg, "Examining
perturbative amplitudes in N=4 supersymmetric theories, leading to a
reexamination of the ultraviolet properties of multiloop N=8
supergravity, using modern twistor theory."
As it happens, that's "a real, important project that one of my friends is working on," Saltzberg says.
If the science that's so exciting to Sheldon (Jim Parsons) is right, it's because of David Saltzberg.
The scientist got involved with
The Big Bang Theory in
2007, when the show was little more than a theoretical construct. The
set designers asked him to show them some real graduate students'
apartments, so they could see how young scientists really live.
"And
they did a nice, faithful re-creation of their apartments," he said,
adding that after CBS tested the show, the sets were scrapped, because,
Saltzberg thinks, the sets were too depressing.
Saltzberg gets
backup from actress Mayim Bialik, who happens to have a PhD in
neuroscience. (Her character, Dr. Amy Farrah Fowler, is also a
neuroscientist.) She helps Saltzberg fine-tune the show's scientific
details.
"Like, what kind of microscope would they be using, or how thin should these slices be," she offers as an example.
For
his part, Saltzberg has gotten in front of the camera exactly once. He
was an extra in a scene in a university cafeteria, when the nebbishy
Howard Wolowitz shares a thrilling milestone: He finally has a
girlfriend. Saltzberg describes his acting technique thusly: "I just
looked at him like, what's your problem? Why are you bothering me? I'm a
physicist. I have other things to think about."
Executive
producer Bill Prady says it's useful to have Saltzberg around for
last-minute questions — like the time the show needed him to calculate
how fast a bottle would fall if it were dropped from a four-story
window. He can also check the accuracy of jokes made up on the fly.
"We
shoot in front of a live audience," Prady says. "And if a joke dies,
the writers gather and we pitch new jokes, and when we get one, we go
teach it to the actors and we do the scene again."
That
happened in the very first season, when Sheldon and another scientist
have a fight. Saltzberg pitched a joke: When one of the characters
describes the fight as "a little misunderstanding," Sheldon is furious.
"A little misunderstanding?" he cries. "Galileo and the pope had a
little misunderstanding!"
It's the only joke Saltzberg has ever gotten on the show.
"The
writers were very kind," he says. "But it's a little bit like if I'm at
a party and having drinks and someone says, well, they have a new
theory of gravity they want to tell me about."
Ultimately,
Saltzberg says, creating comedy is not that different from experimental
science. At the end of the day, it either works or it doesn't. But he
adds that he thinks this sitcom,
The Big Bang Theory, is more important than his work in the lab.
"This
has a lot more impact than anything I will ever do," he says. "It's
hard to fathom, when you think about 20 million viewers on the first
showing — and that doesn't include other countries and reruns. I'm happy
if a paper I write gets read by a dozen people."
Saltzberg
says he became a scientist partly because of popular culture, such as
Isaac Asimov's science fiction and the '70s TV show
Space: 1999. He believes the rigor and passion for science he brings to
The Big Bang Theory might inspire kids in the audience to one day become scientists, too.