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2. These are the top 100 Valentine’s Day gifts ... - AOL

   www.aol.com/lifestyle/best-valentines-day-gifts...

   Amazon's annual list of the 100 best Valentine's Day gifts includes options for men ... activity, stress, heart health, and more, and it offers up to eight days of battery life per charge. $349 at ...

3. Brushless DC electric motor - Wikipedia

   en.wikipedia.org/wiki/Brushless_DC_electric_motor

   Small cooling fans in electronic equipment are powered exclusively by brushless motors. They can be found in cordless power tools where the increased efficiency of the motor leads to longer periods of use before the battery needs to be charged. Low speed, low power brushless motors are used in direct-drive turntables for gramophone records. [13]

4. Fan (machine) - Wikipedia

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

   A household electric fan A large cylindrical fan. A fan is a powered machine that creates airflow. A fan consists of rotating vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner. Usually, it is contained within some form of housing ...

5. Computer fan - Wikipedia

   en.wikipedia.org/wiki/Computer_fan

   Fans may be controlled by sensors and circuits that reduce their speed when temperature is not high, leading to quieter operation, longer life, and lower power consumption than fixed-speed fans. Fan lifetimes are usually quoted under the assumption of running at maximum speed and at a fixed ambient temperature.

6. Industrial fan - Wikipedia

   en.wikipedia.org/wiki/Industrial_fan

   The axial fan is often contained within a short section of cylindrical ductwork, to which inlet and outlet ducting can be connected. Axial fan types have fan wheels with diameters that usually range from less than a foot (0.3 meters) to over 30 feet (9.1 m), although axial cooling tower fan wheels may exceed 82 feet (25 m) in diameter.

7. Motor capacitor - Wikipedia

   en.wikipedia.org/wiki/Motor_capacitor

   [citation needed] There are two common types of motor capacitors, start capacitor and run capacitor (including a dual run capacitor). [ 2 ] Motor capacitors are used with single-phase electric motors [ 3 ] : 11 that are in turn used to drive air conditioners , hot tub / jacuzzi spa pumps, powered gates, large fans or forced-air heat furnaces ...