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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. String galvanometer - Wikipedia

   en.wikipedia.org/wiki/String_galvanometer

   An early commercial ECG machine, built in 1911 by the Cambridge Scientific Instrument Company. A string galvanometer is a sensitive fast-responding measuring instrument that uses a single fine filament of wire suspended in a strong magnetic field to measure small currents. In use, a strong light source is used to illuminate the fine filament ...

5. Suction cups - Wikipedia

   en.wikipedia.org/?title=Suction_cups&redirect=no

   From Wikipedia, the free encyclopedia. Redirect page

6. The stock market slumped today. Why is the 'Santa rally' over?

   www.aol.com/stock-market-slumping-today-why...

   U.S. stocks fell Friday as investor sentiment turned gloomy. The Dow Jones Industrial Average closed more than 300 points lower, while the Nasdaq Composite Index, which contains more technology ...

7. Bus driver chased snowball youths with knife - AOL

   www.aol.com/bus-driver-chased-snowball-youths...

   A bus driver who wielded a knife as he chased a group of youths who threw snowballs at him has been fined £300. Preston Lodowica, 53, had stopped at Killingworth Shopping Centre, in North ...

8. Electrocardiography - Wikipedia

   en.wikipedia.org/wiki/Electrocardiography

   Electrocardiography is the process of producing an electrocardiogram (ECG or EKG [a]), a recording of the heart's electrical activity through repeated cardiac cycles. [4] It is an electrogram of the heart which is a graph of voltage versus time of the electrical activity of the heart [ 5 ] using electrodes placed on the skin.

9. After Cancer, Woman Was Told She Had a '0% Chance' of ...

   www.aol.com/cancer-woman-told-she-had-093000824.html

   Get sweaters on sale for the whole family during Nordstrom's Half-Yearly Sale: Up to 60% off must-have brands. AOL. The best laundry detergent sheets of 2025. AOL.