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2. Self-sealing suction cup - Wikipedia

   en.wikipedia.org/wiki/Self-sealing_suction_cup

   The self-sealing suction cup is a suction cup that exerts a suction force only when it is in physical contact with an object. Unlike most other suction cups, it does not exert any suction force when it is not in contact with an object. [1] Its grasping ability is achieved entirely through passive means without the use of sensors, valves, or ...

3. Suction cup - Wikipedia

   en.wikipedia.org/wiki/Suction_cup

   The working face of the suction cup is made of elastic, flexible material and has a curved surface. [3] When the center of the suction cup is pressed against a flat, non-porous surface, the volume of the space between the suction cup and the flat surface is reduced, which causes the air or water between the cup and the surface to be expelled past the rim of the circular cup.

4. Shower - Wikipedia

   en.wikipedia.org/wiki/Shower

   A typical stall shower with height-adjustable nozzle and folding doors A combination shower and bathtub, with movable screen. A shower is a place in which a person bathes under a spray of typically warm or hot water. Indoors, there is a drain in the floor. Most showers are set up to have adjustable temperature, spray pressure and showerhead ...

5. Drink coaster - Wikipedia

   en.wikipedia.org/wiki/Drink_coaster

   Drink coasters made of sandstone. A coaster, drink coaster, beverage coaster, or beermat is an object used to rest drinks upon. Coasters protect the surface of a table, or any other surface where a user might place a cup, from condensation created by cold drinks.

6. Suction (medicine) - Wikipedia

   en.wikipedia.org/wiki/Suction_(medicine)

   In many hospitals and other health facilities, suction is typically provided by suction regulators, connected to a central medical vacuum supply by way of a pipeline system. The plastic, rigid Yankauer suction tip is one type of tip that may be attached to a suction device. Another is the plastic, nonrigid French or whistle tip catheter.

7. Cage cup - Wikipedia

   en.wikipedia.org/wiki/Cage_cup

   The Lycurgus Cup, lit from behind, with a modern foot and rim.. The function of cage cups is debated. The inscriptions strongly suggest that they were cups to be used, and perhaps passed around, for ceremonial drinking at feasts, but it has been suggested that the shape of the out-turned rim of the beakers and the missing stand of all known vessels means that all diatreta were like the example ...