What links Humphry Davie, Michael Faraday, Madam Curie?

Question
Mathew Webb swam the channel – where did he drown
Answer
Niagara Falls

Question
The word stymie originated in what sport?
Answer
Golf ball blocking you

Question
What was the name of Dorothy Parkers Parrot?
Answer
Onan – He spilled his seed on the ground

Question
Frass is the correct word for what?
Answer
Insect faces – bug shit