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What low-friction device did Leonardo da Vinci study using spheres between two rings?
Answer
Ball bearing
What rotating machine did Leonardo da Vinci design to produce a continuous supply of threads?
Answer
Spinning machine
What kind of bridge did Leonardo da Vinci design to swing around a central support?
Answer
Revolving bridge
What type of robot did Leonardo da Vinci design in 1495 for a court entertainment?
Answer
Mechanical knight
What type of machine did Leonardo da Vinci design to move itself using gears and a wound spring?
Answer
Self-propelled cart
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What rotating machine did Leonardo da Vinci design to produce a continuous supply of threads?
Answer
Spinning machine
What kind of bridge did Leonardo da Vinci design to swing around a central support?
Answer
Revolving bridge
What type of robot did Leonardo da Vinci design in 1495 for a court entertainment?
Answer
Mechanical knight
What type of machine did Leonardo da Vinci design to move itself using gears and a wound spring?
Answer
Self-propelled cart
What clock feature did Leonardo da Vinci design to improve the accuracy of a mechanical clock?
Answer
Pendulum escapement
What type of pump did Leonardo da Vinci study for raising water using a rotating screw?
Answer
Archimedes' screw
What Leonardo da Vinci machine used a large wheel and gears to move without an animal pulling it?
Answer
Self-propelled cart
Which Leonardo da Vinci design is a pyramid-shaped parachute intended to slow a person's fall?
Answer
Pyramidal parachute