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2. Fan (machine) - Wikipedia

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

   For purposes of air conditioning, the Han dynasty craftsman and engineer Ding Huan (fl. 180 CE) invented a manually operated rotary fan with seven wheels that measured 3 m (10 ft) in diameter; in the 8th century, during the Tang dynasty (618–907), the Chinese applied hydraulic power to rotate the fan wheels for air conditioning, while the ...

3. Coolest Cooler - Wikipedia

   en.wikipedia.org/wiki/Coolest_Cooler

   The cooler's hexagonal shape has a 55+ quart capacity. [7] The cooler is powered by a rechargeable lithium-ion battery and the removable Bluetooth speaker is also rechargeable and can be paired with a second speaker up to 30 feet away.

4. 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]

5. 7 Coolers That Will Take Your Adventures to the Next Level

   www.aol.com/7-coolers-adventures-next-level...

   BP25 25-Quart Roll-Top Backpack Cooler. If maximum portability is key, it doesn't get any more portable than a backpack cooler. Engel's BP25 is a roll-top model that's lightweight (just 3.5 pounds ...

6. Lanz Bulldog D 9506 - Wikipedia

   en.wikipedia.org/wiki/Lanz_Bulldog_D_9506

   The drum brakes at the rear wheels are foot-operated, the handbrake locks the gearbox. The standard Lanz hot-bulb engine with a displacement of 10.3 L was used, it has a thermosiphon cooler. Compared to the predecessor series HR 6 and HR 7, the engine now has a better speed governor, the rated engine speed was increased from 540 min −1 to 630 ...

7. Applications of the Stirling engine - Wikipedia

   en.wikipedia.org/wiki/Applications_of_the...

   The portable cooler can be operated more than a day, maintaining sub-freezing temperatures while powered by an automotive battery. [41] This cooler is still being manufactured, with Global Cooling now coordinating distribution to North America and Europe. [42] Other variants offered by Twinbird include a portable deep freezer (to −80 °C ...