Multiple choice general knowledge

Who invented the the machine for testing the tensile strength of wire and the lens-grinding machine.

  1. None

  2. Leonardo da Vinci

  3. Louis Braille

  4. Charles Babbage
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Leonardo da Vinci was a polymath who designed numerous machines and devices, including equipment for testing wire tensile strength and lens-grinding machines. His notebooks contain detailed drawings of various mechanical inventions.

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