Videos Tagged: invention

History
History of Helicopters
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The earliest invention for vertical flight that we know comes from China. It is known that since 400 years BC, children in China played with bamboo flying toys. Children attached a stick to a ro...

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Latest Articles
Archimedes produced many formulas and theories that help calculate areas of regular shapes. He did this using a revoluti...
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Subliminal messages are visual or auditory stimuli that the conscious mind cannot perceive. They are often inserted into...
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The historic city flourished from the 14th to the 18th century. During that time, it grew to one of the largest and most...
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Designed to last 120 years, the price of the project reached almost $19 billion to build. The initial cost of constructi...
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She recently said, “I don’t know exactly what problem I will or will not end up solving, or what exactly I’ll end ...
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