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Small magnet toys previously banned. Toys with high-powered magnets were banned by the CPSC in 2014 due to these hazards, but the ban was lifted in 2016 — since then, research has showed a sharp ...
Electric scooters, hair styling tools and tiny magnets found in desk toys are landing kids in the emergency room, according to a spate of new research. Pediatricians are sounding the alarm on ...
A generator using permanent magnets (PMs) is sometimes called a magneto, or a permanent magnet synchronous generator (PMSG). Armature : The power-producing component of an electrical machine. In a generator, alternator, or dynamo, the armature windings generate the electric current, which provides power to an external circuit.
[4] [5] A popular example of a magnet motor, although without rotating axis, was put forward by John Wilkins in 1670: A ramp with a magnet at the top, which pulled a metal ball up the ramp. Near the magnet was a small hole that was supposed to allow the ball to drop under the ramp and return to the bottom, where a flap allowed it to return to ...
The development of modern rare-earth magnets makes the simple magneto alternator a more practical proposition as a power generator, as these permit a greatly increased field strength. As the magnets are compact and of light weight, they generally form the rotor, so the output windings can be placed on the stator, avoiding the need for brushgear.
In the U.K., at least three children have been hospitalized after swallowing magnets for the TikTok trend. Faye Elizabeth's 13-year-old daughter swallowed 15 magnetic beads and required major ...
Magnetix 'Translucents' 1 Piece Set. Magnetix is a magnetic construction toy that combines plastic building pieces containing embedded neodymium magnets, and steel bearing balls that can be connected to form geometric shapes and structures.
A bottle dynamo or sidewall dynamo is a small electrical generator for bicycles employed to power a bicycle's lights. The traditional bottle dynamo (pictured) is not actually a dynamo at all (which creates DC power), but a low-power magneto that generates AC .