ANDREW MAY went to the same Cambridge college, Trinity, as Sir Isaac Newton. After gaining his first degree in Natural Sciences he went on to do a PhD in astrophysics at Manchester University. This was on the subject of galactic dynamics, and the only physics he needed to know he was a Newtonian. He continued as a postdoc in the same area for four years, before moving into the more lucrative if shadowy world of defence science. He worked first in private industry, then in the Civil Service and then in private industry again, for a total of 24 years. He now earns his living as a freelance writer and defence consultant.He is author of Isaac Newton: pocket GIANTS (2015).