Suction

Suction is the creation of a partial vacuum, or region of low pressure. The pressure gradient between this region and the ambient pressure will propel matter toward the vacuum.

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Vacuums do not actually attract matter; matter is pushed into them by the higher pressure of surrounding air (there being nothing in a vacuum to do any attracting). At zero air pressure, such as in space, suction would have no effect. However, most humans live at air pressure near 101.325 kPa (14.7 lbf/in²), which is the average atmospheric pressure at sea level. (It is lower at higher elevations.)

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Vacuum: For other uses, see vacuum cleaner and Vacuum (musical group)....

Pressure gradient: In atmospheric sciences (meteorology, climatology and related fields), the pressure gradient (typically of air, more generally of any fluid) is a physical quantity that describes in which direction and at what rate the pressure changes the most rapidly around a particular location. The pressure grad...

KPa: KPA may refer to:...

Suction related Images and Photos (experimental)

Nerf Suction Darts 36-Pack	Nerf Suction Darts 16-Pack	Peeping Cthulhu Suction Cup Plush	MILO! Micro-suction Stand For Your Smartphone
Nerf Glow-In-The-Dark Firefly Suction Dart Pack	Google Android 6-Inch Ganndroid Plush with Suction Cups