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2. Remote control - Wikipedia

   en.wikipedia.org/wiki/Remote_control

   In electronics, a remote control (also known as a remote or clicker [1]) is an electronic device used to operate another device from a distance, usually wirelessly. In consumer electronics, a remote control can be used to operate devices such as a television set, DVD player or other digital home media appliance. A remote control can allow ...

3. Space Engineers - Wikipedia

   en.wikipedia.org/wiki/Space_Engineers

   Ships can be moved and rotated as long as they have power, a gyroscope, a thruster system, and a cockpit or remote control block. For effective movement and stabilization, thrusters must be placed in all six directions, and inertia dampeners can be enabled to assist in stopping motion automatically.

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. Variable-frequency drive - Wikipedia

   en.wikipedia.org/wiki/Variable-frequency_drive

   Small variable-frequency drive Chassis of above VFD (cover removed). A variable-frequency drive (VFD, or adjustable-frequency drive, adjustable-speed drive, variable-speed drive, AC drive, micro drive, inverter drive, variable voltage variable frequency drive, or drive) is a type of AC motor drive (system incorporating a motor) that controls speed and torque by varying the frequency of the ...

6. Corsi–Rosenthal Box - Wikipedia

   en.wikipedia.org/wiki/Corsi–Rosenthal_Box

   An example of a homemade unit. The Corsi–Rosenthal Box is a design for a do-it-yourself air purifier that can be built comparatively inexpensively. It consists of four [1] or five [2] [3] HVAC particulate air filters that form a cube and a box fan to draw air through the filters.

7. AVR microcontrollers - Wikipedia

   en.wikipedia.org/wiki/AVR_microcontrollers

   Watchdog timer (WDT) Multiple power-saving sleep modes; Lighting and motor control (PWM-specific) controller models; CAN controller support; USB controller support Proper full-speed (12 Mbit/s) hardware & Hub controller with embedded AVR. Also freely available low-speed (1.5 Mbit/s) bitbanging software emulations; Ethernet controller support

8. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   Household fans usually have 4, 5 or 6 wooden blades, a decorative motor housing, and a standard three speed motor with pull-chain switch control. These fans come in two varieties, with or without a light kit, depending on the price and consumer preferences.

9. Centrifugal fan - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_fan

   Figure 1: Components of a centrifugal fan An external motor belt driven inline centrifugal fan discharging inline to the exterior of a building through a duct. Unlike non-inline/non-concentric impeller casing design with a cutoff blade above, the concentrically symetric cylinder casing and impeller geometry of inline type redirects the outflow around so that it is parallel to the inflow of gases.