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2. Hand fan - Wikipedia

   en.wikipedia.org/wiki/Hand_fan

   Handheld Brise fan from 1800. A handheld fan, or simply hand fan, is a broad, flat surface that is waved back-and-forth to create an airflow. Generally, purpose-made handheld fans are folding fans, which are shaped like a sector of a circle and made of a thin material (such as paper or feathers) mounted on slats which revolve around a pivot so that it can be closed when not in use.

3. Levitron - Wikipedia

   en.wikipedia.org/wiki/Levitron

   Since it can be difficult to spin the top fast enough by hand, Creative Gifts produced a battery-powered, hand held device to spin the top with an electric motor. Next, the plate is lifted by hand until, if conditions are right, the top rises above it to an equilibrium point. The top must also be weighted with washers of various sizes supplied ...

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. Leaf blower - Wikipedia

   en.wikipedia.org/wiki/Leaf_blower

   Leaf blowers are typically self-contained handheld units, or backpack mounted units with a handheld wand. The latter is more ergonomic for prolonged use. Larger units may rest on wheels and even use a motor for propulsion. [1] These are sometimes called "walk-behind leaf blowers" because they must be pushed by hand to be operated.

6. Mobile device - Wikipedia

   en.wikipedia.org/wiki/Mobile_device

   An iPhone and iPad - two examples of mobile devices. A mobile device or handheld device is a computer small enough to hold and operate in hand. Mobile devices are typically battery-powered and possess a flat-panel display and one or more built-in input devices, such as a touchscreen or keypad.

7. Power tool - Wikipedia

   en.wikipedia.org/wiki/Power_tool

   In the past, stationary tools were powered by windmills, water wheels, and steam. Some museums and hobbyists still maintain and operate stationary tools powered by these older power sources. Portable electric tools may be either corded or battery-powered. Compressed air is the customary power source for nailers and paint sprayers.