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2. Jack (device) - Wikipedia

   en.wikipedia.org/wiki/Jack_(device)

   A series of jacks is used and then wood cribbing temporarily supports the structure. This process is repeated until the desired height is reached. The house jack can be used for jacking carrying beams that have settled or for installing new structural beams. On the top of the jack is a cast iron circular pad that the jacking post rests on.

3. Jackscrew - Wikipedia

   en.wikipedia.org/wiki/Jackscrew

   The maximum mechanical advantage possible for a hydraulic jack is not limited by the limitations on screw jacks and can be far greater. After World War II, improvements to the grinding of hydraulic rams and the use of O ring seals reduced the price of low-cost hydraulic jacks and they became widespread for use with domestic cars. Screw jacks ...

4. Hydraulic compressor - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_compressor

   A hydraulic compressor is a means of compressing air using hydraulic energy. There are two very different types of machines referred to as hydraulic compressors. One type is a mechanical air compressor that is driven by a hydraulic motor. It is a method of converting hydraulic power to pneumatic power. [1]

5. Power window - Wikipedia

   en.wikipedia.org/wiki/Power_window

   That is, the compressed air system used for air brakes is also used for the windows. These types of trucks have long used compressed air cylinders for seat height adjustment. In a similar fashion to the electro-hydraulic system, the compressed air is merely released to lower the window and/or seat.

6. Winch - Wikipedia

   en.wikipedia.org/wiki/Winch

   An air winch, sometimes known as an air hoist or air tugger, is an air-powered version of a winch. It is commonly used for the lifting and the suspension of materials. In the oil and gas, construction , and maritime industries, air winches are frequently preferred to electric, diesel, and hydraulic winches because of their durability ...

7. What Elphaba’s costume has to do with mushrooms, and more ...

   www.aol.com/elphaba-costume-mushrooms-more...

   “Wicked” costume designer Paul Tazewell opens up about the making of Elphaba and Glinda's costumes on Wicked — the meaning of the Elphaba's back outfits, the bubble dress and more.