MY attention has been drawn to a note in NATURE of January 11 (p. 253) which quotes from the Electrical World of New York “a novel method of obtaining sinusoidal alternating currents of very low ...

This is a preview. Log in through your library . Abstract For the commutator $B \cdot A - \operatorname{Op}(ba)$ of two pseudo-differential operators $A$ and $B$ an ...

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Have you ever wondered what made car manufacturers decide to go from dynamos to alternators for generating electricity? It's a mix of reliability and cost.

IF any one event can be regarded as the birth of electrical engineering, it is surely the discovery by Faraday in 1821 of the principle of the electro-motor; that is, that a conductor carrying a ...

Although the electric motor has only a few moving parts, it is not a simple machine. Because the rotor spins at high speeds, the internal windings and other components must be strong. The temperature ...

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Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Force - Just like magnets, electric charges can repel or attract each other. Because opposites attract, there is a force between the negatively charged electrons and the positively charged proton.

We now need to 'harvest' the electricity and take it to the battery using wires. The coil can't just be connected directly to the battery because as the armature turns, the wires would quickly become ...

Called the Commutator Foundry project, developers John Gross, David Wilson and Andrew Commers had intended to restore a pair of old buildings and construct a five ...