Coil cords, as they are sometimes called, consist of straight sections followed by curly sections. To achieve their spring-like form, the curly sections of metal wire are wound around a mandrel.

If your projector is mounted near a ceiling fan, consider asking an electrician to wire in a ceiling-mounted outlet instead of using an extension cord. Using a dual-channel conduit will help to ...

A cost- and time-effective solution for well intervention operations employs coiled tubing. Instead of removing the tubing from the well, which is how workover rigs fix the problem, coiled tubing ...

[TheBackyardScientist] decided to build a machine to create the gas rings, and it’s quite interesting to see them go through several iterations before settling on a voice coil based poppet valve ...

You can buy ready-wound secondary coils from the usual CN suppliers The primary side of a Tesla coil is usually a handful of turns of thick wire to handle the current without melting. This build ...

Nope. That just confirms that the spark plug fires in open air. It doesn’t mean the ignition coil is strong enough to fire ...

It caught me in the throat, and I hit the ground like a load of bricks. Extension cords can also pose hazards in the dark, ...

So, if you can’t get your car’s engine to start smoothly, it might be time to replace the ignition coil. An ignition coil is responsible for supplying high voltage to spark plugs, which speeds up the ...

Many audiophiles like to retrofit their turntables with moving-coil (MC) cartridges; these require a phono preamp that’s designed to work with both MM and MC cartridges. Turntables without a ...

What happens if rubber is replaced with solid steel wire of a suspension coil spring?’ is the question we didn’t know we ...

At hotels, housekeepers are the biggest and, arguably, the most important department. Here's a behind-the-scenes look at ...

This foam-and-coil mattress has a supportive and springy feel, good motion isolation, and decent edge support. It appealed to a wider range of testers than most of the other cheap mattresses we tried.