What is the history of the simple machine, the screw?
825450
A screw is one of the six simple machines. A simple screw is a helical inclined plane. A screw can convert a rotational force (torque) to a linear force and vice versa. The ratio of threading determines the mechanical advantage of the machine.
224999
Here is assembly line history, but it says nothing of that:\nhttp://en.wikipedia.org/wiki/Assembly_line
368874
think pully or wrench. \nwhy do we use pully to lift things, we replace distance for force.\nbut the total work = force *distace is fixed.\nanother example when you use a pipe to make a wrench handel longer fo you can turn the screw. \nIt is technically torque but similar concept.
801886
tools toolbar history
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Take a look here :\n\nhttp://en.wikipedia.org/wiki/Computer_history\n\nThat article also has links to other relevant articles.
991376
It was invented in 1954.
265032
Popular computer lore gives this credit to Admiral Grace Hopper, an early computing pioneer:\n\nhttp://en.wikipedia.org/wiki/Grace_Hopper\n\nCheck out the picture here:\n\nhttp://en.wikipedia.org/wiki/Image:H96566k.jpg\n\nIt may or may not be true, but it is usally attributed as the first "bug".
1030003
1 I don't know sorry :&#92;\n\nand 2 its simple. an electromagnet!
404236
a Screw usually has threading, a Bolt usually doesn't. Actually, a Screw is shorter than a bolt.
934178
Charles Babbage's engines were among the first mechanical computers. His engines were not actually completed, largely because of funding problems and personality issues. \nBabbage realized that a machine could do the work better and more reliably than a human being.\n Although Babbage's machines were mechanical monsters their basic architecture was astonishingly similar to a modern computer. \nThe data and program memory were separated, operation was instruction based, control unit could make conditional jumps and the machine had a separate I/O unit.
616458
Actually, it is documented.  The pulley was discovered by Archimedes.  He is known for his extensive work in geometry; and the invention of the lever and pulley. He also created a range of mechanical devices for the defense of his homeland - the catapult and a mirror system (for focusing the sun's rays on an enemy's boat causing it to catch fire). \n\n\nBorn: ca. 287 B.C. \nBirthplace: Syracuse, Sicily \nDied: ca. 212 B.C. \nBest Known As: Ancient Greek mathematician who said "Eureka!"
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Toothpick\nIn 1872, Silas Noble and J. P. Cooley patented the first toothpick-manufacturing machine.\naccording to Forster Manufacturing, 1869 the commercial toothpick is invented by Charles Forster in his basement in Boston, Massachusetts. \n\nbut toothpicks have been used forever.. i bet cavemen used bone to pick their teeth.
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The compound machine was realized with ship building. \nA hoist was needed to lift cargo and the sails. The pulleys provided the means in the short space allowed.
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it is a type of Machinery.
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http://en.wikipedia.org/wiki/Servomechanism
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I've never heard the term either.  My dad's a mechanic, and I've heard plenty about screws, and threads, and nuts and bolts and rivets...all types of fasteners.\n\nWhat does it matter if something was taken apart?  That's what screws are for--so you can unscrew it and screw it back together.  Unless something got messed up inside by opening it, I don't see what the big deal is.  If it wasn't supposed to be unscrewed, then the manufacturer should have glued it together or put in rivets or something instead of screws.\n\nNow, if the threads on the screws were messed up, or if it had the wrong kind of screws in the holes, it might be bad, but unless the hole the screws went into was messed up, just get the right screws and put them in the holes.  There's something called "thread-lock" which basically glues a screw in place--it flows around the screw and then the screw is stuck in the hole.  \n\nI don't get the problem.  The person should be more specific about the damage, and use standard terms any mechanic (or mechanic's daughter) would use.  If I don't recognize the term, I'm not saying it doesn't exist (I admit, there are a few words I don't know!) but it could just be a scam where somebody's trying to return it or get a refund for a "problem" that doesn't exist.
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A simple machine is one with few or no moving parts. Examples of simple machines are Screw, Wheel and Axle, Wedge, Pulley, Inclined Plane, Lever.\n\nA manual can-opener has these simple machines:\nThe handle you turn to make the can rotate is a wheel and axle.\nThe two long arms that clamp the can securely make a lever.\nThe circular wheel that cuts the can lid is sharpened to make a wedge.