A college course forces John Rennie to confront a furious rat, and himself.
This story originally aired on August 14, 2011.
Stories by John Rennie
John Rennie finds it’s great to be editor in chief of Scientific American, but not when all the ingredients of sarin gas are in his office.
As an editor at Scientific American John Rennie delighted in the weird correspondence they received, but then one letter crossed a line.
After he's named lab safety officer, John Rennie must recover a precious sample from the bottom of a vat of liquid nitrogen. So he reaches in.