The well runs deep
Trivia questions and answers, drawn fresh from the well
239,757 public questions across 1,818 topics. Challenge yourself, or build the perfect quiz for game night.
239,757
Questions with answers
1,818
Topics to explore
3
Depths of difficulty
Today at the well
1 / 5 0
What Leonardo da Vinci invention was a device for measuring humidity using a balance and a material that absorbed moisture?
Answer
Hygrometer
What Leonardo da Vinci design is known as the world’s first humanoid robot?
Answer
Mechanical knight
What Leonardo da Vinci design used a large lens to concentrate sunlight for industrial heating?
Answer
A solar furnace
What machine did Leonardo da Vinci design with a rotating screw to imitate the lift of a helicopter?
Answer
Aerial screw
What mechanical device did Leonardo da Vinci design to raise heavy loads by turning a threaded shaft?
Answer
Screw jack
0 / 5
Round complete
239,757 trivia questions
Every question has an answer
1,818 public topics
Something for every quiz
Free to explore
Reveal answers at your own pace
Fresh from the well
Latest trivia questions
What Leonardo da Vinci design is known as the world’s first humanoid robot?
Answer
Mechanical knight
What Leonardo da Vinci device used a spring-powered mechanism to move without an animal pulling it?
Answer
Self-propelled cart