solar filament galaxy filament the Ursa Major Filament. The fine metal wire in a lightbulb, which becomes incandescent when heated by an electric current. Figure 2 shows the free-body diagram of the reel as it slows down from rolling resistance. While regular LEDs might use one large LED or a group of LEDs packed tightly into a small space, filament LEDs spread the diodes along several different lines or âfilamentsâ. âHaveâ vs. âHasâ: When To Use Each One. Help with GCSE Physics, AQA syllabus A AS Level and A2 Level physics. The stalk of a stamen bearing the anther. The American HeritageÂ® Stedman's Medical Dictionary Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. Filaments are solar prominences that are viewed against the solar surface rather than being silhouetted along the outer edges of the disk. The slim part of the stamen that supports the anther is an example of a filament. The team actually gathered data from the filament back in 2014 during a single eight-hour stretch, but the data sat waiting as the radio astronomy community spent years figuring out how to improve the calibration of LOFARâs measurements. physics, astronomy A massive, thread -like structure, such as those gaseous ones which extend outward from the surface of the sun, or such as those (much larger) ones which form the boundaries between large voids in the universe. Published by Houghton Mifflin Company. A filament is topped by the anther. The B voltage gives the plate a positive charge to attract electrons from the filament. The American HeritageÂ® Science Dictionary It is dependent on the nature of the material, its thickness and length, and on temperature. Master these essential literary terms and youâll be talking like your English teacher in no time. Conductor The movement of electron gives rise to the flow of current through metals a very fine thread or threadlike structure; a fiber or fibril: a single fibril of natural or synthetic textile fiber, of indefinite length, sometimes several miles long. Give Dan Rhodes a small sample of a novel polymer, and heâll figure out how to extrude it into a filament, and how to fine-tune the process to see whether the material can be made to work in high-speed manufacturing. Because the filament, usually made of tungsten, would burn from the heat, the bulb is filled with a nonreactive gas, such as argon, which protects the wire from burning. A fine or slender thread, wire, or fiber. The part of a stamen that supports the anther of a flower; the stalk of a stamen. This property forms the basis of the fields of optics and optical communications and a myriad of related technologies, both mature and emerging. Denoting the cross-section a of a filament by dS and its mass by dm, the quantity wdS/dm is called the vorticity; this is the same at all points of a filament, and it does not change during the motion; and the vorticity is given by w cos edS/dm, if dS is the oblique section of which the normal makes an angle e with the filament, while the aggregate vorticity of a mass M inside a surface S is M - l fw cos edS. Together the anther and filament make up the flower's stamen. Copyright © 2020 LoveToKnow. A slender or threadlike structure or part, especially: a. filament definition: 1. a thin thread or fibre of natural or artificial material: 2. a thin wire, especially one thatâ¦. physics the thin wire inside a light bulb. Some cathodes have two filaments for broad and fine focusingFocusing cup 1. The bulb has a spirally wound wire, filament, inside it. The filament in the bulb glows and emits light. The filament can be instantly burned out by passing a current of too high pressure through it. Cambridge Dictionary +Plus Poulami410 Poulami410 Answer: The cathode of a thermionic tube, usually in the form of a wire, which may be electrically heated. Ray tracing for thin lenses is very similar to the technique we used with spherical mirrors. It is written and maintained by a fully qualified British Physics Teacher. The filament bulb is just one of many examples were energy is transferred usefully, BUT there is always heat energy lost to the thermal energy store of the device and the surroundings. The audion is a glass bulb like an electric light bulb which has in it a thread, or filament, of metal. If the filament is a cylinder 4.00 cm long (it may be coiled to save space), what is its diameter?
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