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2. Bicycle lighting - Wikipedia

   en.wikipedia.org/wiki/Bicycle_lighting

   Magnetic bike lights. Lights can be self-powered via electromagnetic induction, eliminating the need for batteries or dynamo systems. The advantages are similar to those of dynamo lighting. The most common design includes a magnet on the wheel spoke and lights with a coil in them, mounted on the frame or fork of the bike.

3. Mechanically powered flashlight - Wikipedia

   en.wikipedia.org/wiki/Mechanically_powered...

   The magnet induces an electric current as it spins around the red copper winding, seen on the lower right. The current from the copper winding flows through the filament of an incandescent light bulb (not shown), giving off light. An L-shaped spring returns the handle to its original position after each engagement.

4. Track lighting - Wikipedia

   en.wikipedia.org/wiki/Track_lighting

   Track lighting is a method of lighting where light fixtures are attached anywhere on a continuous track device which contains electrical conductors. [1] [2] This is in contrast to directly routing electrical wiring to individual light positions. Tracks can either be mounted to ceilings or walls, lengthwise down beams, or across rafters or joists.

5. Wigwag (railroad) - Wikipedia

   en.wikipedia.org/wiki/Wigwag_(railroad)

   There was a red light in the center of the target, and with each swing of the target a mechanical gong sounded. The new model, combining sight, motion and sound, was dubbed the magnetic flagman, and was manufactured by the Magnetic Signal Company of Los Angeles, California, though it is unclear exactly when production began. After the ...

6. Emergency vehicle lighting - Wikipedia

   en.wikipedia.org/wiki/Emergency_vehicle_lighting

   Emergency vehicle lighting is generally used to clear the right of way for emergency vehicles, or to warn approaching motorists of potential hazards, such as a vehicle that is stopped or moving slower than the rate of traffic, or a car that has been pulled over.

7. 50 Of The Most Fascinating, Stunning And Dangerous Natural ...

   www.aol.com/100-most-incredible-stunning-strange...

   Aurora Australis, or the Southern Lights, is a natural light display caused by solar wind particles colliding with Earth’s magnetic field. This creates colorful lights in the sky, typically ...