state Archimedes inventions (any 2) with examples
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Answer:
Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces. Archimedes' principle is a law of physics fundamental to fluid mechanics.
Explanation:
For example, a ship that is launched sinks into the ocean until the weight of the water it displaces is just equal to its own weight. As the ship is loaded, it sinks deeper, displacing more water, and so the magnitude of the buoyant force continuously matches the weight of the ship and its cargo.
Answer:
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The Pully System
Archimedes didn't invent the pulley, but he did invent compound pulleys, improving on an existing form of technology that was around at his time. He demonstrated that a wheel supported by a rope could be used as a method of transferring energy, providing the operator with a mechanical advantage in the process. Archimedes perfected the existing technology to create the first block and tackle system utilizing cranes and compound pulleys. History states that he demonstrated the power of his new machine by moving a ship all through his own effort while being seated a great distance away.
The Odometer
Archimedes is also credited as coming up with the first idea of an odometer, or at least a mechanical method of keeping track of distance traveled. Vitruvius accounted Archimedes as conjuring up a large wheel of a known circumference in a small frame that was mounted to a wheelbarrow or other wheeled device. When the object was pushed along, the device would drop pebbles into a container, each representing a set distance.
The Iron Claw
Archimedes is somewhat famous for designing war machines for his home state of Syracuse. One famous device was called the Iron Claw. This machine was thought to have been installed on the walls of the city of Syracuse, able to grab and topple ships that were approaching to attach. This device is only known about through snippets of historical context, but it was believed that the claw device would fasten itself to the underside of a ship and be tugged upwards. This force would either cause great damage to the approaching ships or cause them to topple over.
Archimedes screw
Living in the era of 200s B.C., agriculture was a leading cultural driver in society, but the industry faced similar problems that farmers do today. Poor farmers specifically were running into issues irrigating their crops, so Archimedes devised a solution.
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