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History
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Gaetano Marzagaglia, Del calcolo balistico, 1748
Gaetano Marzagaglia, Del calcolo balistico, 1748
Baseball throws can exceed 100 mph
Baseball throws can exceed 100 mph
Catapult 1 Mercato San Severino
Catapult 1 Mercato San Severino
USS Iowa (BB-61) fires a full broadside, 1984.
USS Iowa (BB-61) fires a full broadside, 1984.
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Natural flight by a brown pelican
Natural flight by a brown pelican
Human-engineered flight: a Royal Jordanian Airlines Boeing 787
Human-engineered flight: a Royal Jordanian Airlines Boeing 787
An airship flies because the upward force, from air displacement, is equal to or greater than the force of gravity
An airship flies because the upward force, from air displacement, is equal to or greater than the force of gravity
Female mallard duck
Female mallard duck