Which Dragons' Den investor is known for founding Phones 4u?
Answer
John Caudwell
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Which Dragons' Den investor is known for founding Phones 4u?
Answer
John Caudwell
What underwater breathing device did Leonardo da Vinci design as a diving bell?
Answer
Diving bell
What emergency-air device did Leonardo da Vinci sketch as a pyramid-shaped parachute?
Answer
Parachute
What navigation instrument did Leonardo da Vinci design to find direction at sea?
Answer
Compass
What machine did Leonardo da Vinci design to cut threads in metal?
Answer
Thread-cutting machine
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Latest trivia questions
What machine did Leonardo da Vinci design to cut threads in metal?
Answer
Thread-cutting machine
What kind of lock gate did Leonardo da Vinci develop for canals?
Answer
Mitre gate
What did Leonardo da Vinci’s hygrometer measure?
Answer
Humidity
What vehicle did Leonardo da Vinci design with a spring-powered mechanism?
Answer
Self-propelled cart
What mechanical figure did Leonardo da Vinci design with armor and movable limbs?
Answer
Robotic knight