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Gunpowder
Gunpowder, also called black powder, is a mixture of sulfur, charcoal, and potassium nitrate. Known in Chinese as "Huo Yao" (火药 simplified, 火藥 traditional), it is one of the Four Great Inventions of ancient China. It burns rapidly, producing volumes of hot solids and gases which can be used as a...
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Utopia
Utopia is a name for an ideal community or society, that is taken from Of the Best State of a Republic, and of the New Island Utopia, a book written in 1516 by Sir Thomas More describing a fictional island in the Atlantic Ocean, possessing a...
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- 320,400
Robotics
Robotics is the engineering science and technology of robots, and their design, manufacture, application, and structural disposition. Robotics is related to electronics, mechanics, and software. The word robot was introduced to the public by Czech...
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Research Points:
- 144,000
