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2. Wig wag (washing machines) - Wikipedia

   en.wikipedia.org/wiki/Wig_wag_(washing_machines)

   Only one solenoid may be operated at a time. When neither solenoid is engaged, the transmission is in neutral, and only the pump is operating to drain water out of the tub. During a normal cycle, most Whirlpool-built wig-wag equipped washers will fill, start the motor, then engage the wash solenoid.

3. Magnus effect - Wikipedia

   en.wikipedia.org/wiki/Magnus_effect

   The Magnus effect is a phenomenon that occurs when a spinning object is moving through a fluid or gas (air). A lift force acts on the spinning object and its path may be deflected in a manner not present when it is not spinning. The strength and direction of the Magnus effect is dependent on the speed and direction of the rotation of the object.

4. Washing machine - Wikipedia

   en.wikipedia.org/wiki/Washing_machine

   Higher spin speeds, along with larger tub diameters, remove more water, leading to faster drying. On the other hand, the need for ironing can be reduced by not using the spin cycle in the washing machine. If a heated clothes dryer is used after the wash and spin, energy use is reduced if more water has been removed from clothes. However, faster ...

5. Mangle (machine) - Wikipedia

   en.wikipedia.org/wiki/Mangle_(machine)

   Gradually, the electric washing machine's spin cycle rendered this use of a mangle obsolete, and with it the need to wring out water from clothes mechanically. Box mangles were large and primarily intended for pressing laundry smooth; they were used by wealthy households, large commercial laundries, and self-employed "mangle women".

6. Kármán vortex street - Wikipedia

   en.wikipedia.org/wiki/Kármán_vortex_street

   Visualisation of the vortex street behind a circular cylinder in air; the flow is made visible through release of glycerol vapour in the air near the cylinder. In fluid dynamics, a Kármán vortex street (or a von Kármán vortex street) is a repeating pattern of swirling vortices, caused by a process known as vortex shedding, which is responsible for the unsteady separation of flow of a fluid ...

7. Kutta–Joukowski theorem - Wikipedia

   en.wikipedia.org/wiki/Kutta–Joukowski_theorem

   Kutta–Joukowski theorem relates lift to circulation much like the Magnus effect relates side force (called Magnus force) to rotation. [3] However, the circulation here is not induced by rotation of the airfoil. The fluid flow in the presence of the airfoil can be considered to be the superposition of a

8. Impeller - Wikipedia

   en.wikipedia.org/wiki/Impeller

   Several different types of pump impellers Flexible impeller of cooling system pump of an outboard engine (1 euro cent coin for comparison, diameter 16.25 mm). An impeller is a rotating component of a centrifugal pump that accelerates fluid outward from the center of rotation, thus transferring energy from the motor that drives the pump to the fluid being pumped.

9. Stokes' law - Wikipedia

   en.wikipedia.org/wiki/Stokes'_law

   Stokes' law is important for understanding the swimming of microorganisms and sperm; also, the sedimentation of small particles and organisms in water, under the force of gravity. [5] In air, the same theory can be used to explain why small water droplets (or ice crystals) can remain suspended in air (as clouds) until they grow to a critical ...