What is this?
Phonograph
This musical invention is what?
Calliope
What is this?
Vacuum cleaner
George Crum, in 1853, invented, arguably, the best snack food to ever exist.
Potato chips
This is what supposedly?
Gas mask
What is this?
Gatling gun
What is this?
Barbed wire
What is this?
Ratchet (socket) wrench
