The first large scale electrical air conditioning was invented and used in 1902 by
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Which of the following was the first antibiotic discovered by Alexander Fleming in 1928?
Aaton Van Leewen Hock is famous for the discovery of ___.
Who invented the mouse of a computer?
Who invented the pendulum clock?
Stainless steel was invented by
Which of the following branches of mathematics was invented by Newton?
Where was paper invented?
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