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For the common plunger, the cup is pushed down against the drain opening, either pressing hard into the drain to force air in or pushing down until the rubber cup is flattened. The cup is then pulled out, creating a vacuum to pull blockage material upward and dislodge waste or other material.
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.
Keeton (center) in 2016. Jamie Keeton (born July 9, 1968) is an American man with a medical condition that enables objects to stick to his skin by suction.Nicknamed "Canhead", [1] he has made a career from demonstrating his abilities, and as of 2022 holds the Guinness World Record for the most drink cans attached by air suction to the head.
Nano-suction is a technology that uses vacuum, negative fluid pressure and millions of nano-sized suction cups to securely adhere any object to a flat non-porous surface. When the nano-suction object is pressed against a flat surface, millions of miniature suction cups create a large vacuum, generating a strong suction force that can hold a ...
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 ...
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.
The result of this "gecko tape" was tested by attaching a sample to the hand of a 15 cm high plastic Spider-Man figure weighing 40 g, which enabled it to stick to a glass ceiling, as is shown in the figure. The tape, which had a contact area of around 0.5 cm 2 with the glass, was able to carry a load of more than 100 g. However, the adhesion ...
Initially modern dropped ceilings were built using interlocking tiles and the only way to provide access for repair or inspection of the area above the tiles was by starting at the edge of the ceiling, or at a designated "key tile", and then removing contiguous tiles one at a time until the desired place of access was reached.