Made by Dutch electronics giant Philips, the bulb swaps filaments for light-emitting diodes to provide illumination.
Nerve cells, though, are huge, and consist mainly of filaments that can be many centimetres long.
Carbon fibre is made from thin threads that each contain a number of carbon filaments.
In the filaments, the same cross-sectional pattern of holes is preserved, but on a microscopic scale.
Tungsten, as a material, was much used in the filaments of incandescent electric light bulbs.
The Aerospace industry generally uses 3K or 6K strands, which have 3, 000 or 6, 000 carbon filaments per thread.
LEDs are also long lived because they do not operate at the high temperatures that degrade the filaments of Edison bulbs.
Dr Melrose also thinks that some of the other theories, though they have shortcomings, do not rule out filaments with kinks.
But there was something else, too: hundreds of hollow spheres and filaments.
The article, headlined "Make a Bomb in the Kitchen of Your Mom, " listed common items including filaments from Christmas light bulbs, gunpowder and a clock.
The competition, open to anyone, posed this challenge: Lower the cost of the filaments required for 3D printing and make the process more affordable and sustainable.
The goo emerges from holes in the crustacean's legs and is spun into gossamer filaments by being stuck to a surface and then pulled out as threads.
The A4 line's new adaptive xenon headlights those glowing filaments in the headlamps seem forced and decorative, and they make all of these cars look like they've been smoking angel dust.
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Authorities recovered Christmas-tree lights in one of the suspects' rooms, prompting investigators to see whether part of the initiator for the pipe bombs was light-bulb filaments, the FBI report said.
In Chattanooga, Tenn. the industry includes something very different: ESpin Technologies, a 19-employee outfit that makes nanofibers--filaments of polyester, nylon or other polymers that are only 20 to 200 nanometers wide.
The catch with robocasting, a manufacturing method that has been used mostly for making new sorts of ceramic, is that the filaments tend to lose their structure and blend together as they dry.
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In the new image, the full-scale distribution of vast clumps of dark matter can be seen around galaxy clusters, connected by wispy filaments of dark matter and trailing off to enormous voids where no matter exists.
Next up, you'll be pulling the plastic filaments up from the spools, through two tubes and into holes at the top of the Stepstruder's head, holding it there for a few seconds, until the device's motor begins tugging at the strip.
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