they SCREW into wood, and hold their place, where as nails can come out
If you wrap an inclined plane around a small circle what you will end up with is a screw jack
Screw piling isa vertical foundation for a building or other construction made from tubular steel with helical steel plates welded to the outside diameter. thrust and side loads are taken up by the "screw pattern"(the helical plates).
what is a screw
The Archimedean screw can be constructed using two simple ideas. The first is a screw, which in an inclined plane wrapped around a central core or axis. The second idea is to closely confine the screw by placing it inside a cylinder the length of the screw. One variation of the Screw is to coil a flexible tube around a core shaft. As the shaft is turned, the tube will work in the same way and lift the water up, with the problems caused by an actual Screw's operation. A picture is probably worth a thousand words at this point, so drop down below and find a link to an explanation of the device. It comes complete with an aplet showing the the machine in operation. Check out how it is set up and how it works.
Grew Up a Screw Up was created in 2006-09.
My Screw Up was created on 2004-02-24.
Mistake and fault are two other words for screw up.
Tak up a screw & jack then i will be a screw jack ahahahah
Screw down = pressure up. Screw up = pressure down.
of course it is the iron screw because it is made up of minerals that rust faster then metal
That screw won't work. Hand me that longer screw, please. It'll just take a moment for us to screw in that light bulb! I screwed up. Screw it!
No, look on cylinder with jack up.
Picture a nut on a screw. You are holding the nut so it can't turn, but allow it to go up and down the screw. The screw is restrained so it can turn, but not move back and forth. As you turn the screw one way and the other, the nut will move up and down the screw. That is a trivial example of one very common screw thread mechanism.
The screw is ONE of the SIX simple machines. The screw itself it made up of an incline plane, with a wedge at its tip.
The bottom of a light bulb is a screw.
no