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2. 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.

3. 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 ...

4. Cup holder - Wikipedia

   en.wikipedia.org/wiki/Cup_holder

   This cup holder has slots to accommodate the cups handle and has a suction cup to attach the holder to a smooth flat surface, so that it is held securely. New Zealand patent number 565067. This is a completely free-standing desktop coffee cup holder that can sit on any flat surface this was invented by Digby Green, George Green and Aly Matthews.

5. Microsuction tape - Wikipedia

   en.wikipedia.org/wiki/Microsuction_tape

   For micro-suction tape, the necessary force is proportional to the attachment surface area. Compared to a suction cup, the force is smaller for the tape (assuming the same attachment surface area) because only a portion of the surface area contains craters that form vacuum chambers, and the maximal force factor is determined by this portion.

6. List of Egyptian inventions and discoveries - Wikipedia

   en.wikipedia.org/wiki/List_of_Egyptian...

   A wind-wheel operating an organ, marking the first instance in history of wind powering a machine. [ 296 ] [ 297 ] Hero also invented many mechanisms for the Greek theater , including an entirely mechanical play almost ten minutes in length, powered by a binary-like system of ropes, knots, and simple machines operated by a rotating cylindrical ...

7. Costco Dilemma: What the Heck Do You Do With Those Glass ...

   www.aol.com/finance/costco-dilemma-heck-those...

   Condiment Cups. This one's pretty obvious, but it's something that everyone would find helpful. "We use them as condiment holders for large gatherings like with dip and such," said u/Ellecatat.