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What rotating mechanical component did Leonardo da Vinci draw in an early design for a bearing?
Answer
Ball bearing
What early robotic device did Leonardo da Vinci design in armor-shaped form?
Answer
Mechanical knight
What naval invention did Leonardo da Vinci propose to protect ships from underwater attack?
Answer
Double hull
What was Leonardo da Vinci’s wheeled vehicle powered by winding springs called?
Answer
Self-propelled cart
What name is given to Leonardo da Vinci’s rotating machine intended to lift into the air?
Answer
Aerial screw
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What early robotic device did Leonardo da Vinci design in armor-shaped form?
Answer
Mechanical knight
What was Leonardo da Vinci’s wheeled vehicle powered by winding springs called?
Answer
Self-propelled cart
Which J.K. Rowling children’s book retells the fairy tale of the Three Brothers and the Deathly Hallows?
Answer
The Tales of Beedle the Bard
Which J.K. Rowling novel follows the lives of residents in the fictional English town of Pagford?
Answer
The Casual Vacancy
Which pseudonym did J.K. Rowling use when publishing the crime novel The Cuckoo's Calling?
Answer
Robert Galbraith
Which Hogwarts founder created the house named after her in J.K. Rowling’s Harry Potter series?
Answer
Rowena Ravenclaw
What alternate title did the U.S. edition of J.K. Rowling’s first Harry Potter book use?
Answer
Harry Potter and the Sorcerer’s Stone
What charity did J.K. Rowling support by donating the handwritten manuscript of The Tales of Beedle the Bard?
Answer
The Children’s Voice