"It takes a little more suspension of disbelief to enjoy science fiction and fantasy." Now the self-proclaimed science geek has revisited his best-selling mix of physics, maths, chemistry and ...

Jacob Sagrera unrolls an alligator skin and lays it flat on a metal table, brushing off flecks of salt. He holds it up to the light, looking for blemishes, and gives it a score. That score will help a ...