What sterile animal is produced when a male donkey breeds with a female horse?
To escape snide coverage of his "moon rockets," Robert Goddard fled to what community, which today is, ironically enough, best known as a supposed UFO landing pad?
What British media mogul set a record for the fastest crossing of the English channel by an amphibious vehicle?
What type of blood cell helps fight and eat germs?
In addition to inventing a proto-computer, Charles Babbage also invented the cowcatcher. What is this?
What are circuits with more than one pathway for electrons called?
Before he designed the Saturn V that launched Apollo 11, he was a member of both the Nazi party and the SS, having used slave labor from the Dora concentration camp. Who?
How cold does it need to be outside before it can snow?
Which chemical element is named after the inventor of dynamite?