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tungsten
[ tuhng-stuhn ]
noun
- a rare, metallic element having a bright-gray color, a metallic luster, and a high melting point, 3410° C, and found in wolframite, tungstite, and other minerals: used in alloys of high-speed cutting tools, electric-lamp filaments, etc. : W; : 183.85; : 74; : 19.3.
tungsten
/ ˈtʌŋstən /
noun
- a hard malleable ductile greyish-white element. It occurs principally in wolframite and scheelite and is used in lamp filaments, electrical contact points, X-ray targets, and, alloyed with steel, in high-speed cutting tools. Symbol: W; atomic no: 74; atomic wt: 183.85; valency: 2–6; relative density: 19.3; melting pt: 3422±20°C; boiling pt: 5555°C Also calledwolfram
tungsten
/ tŭng′stən /
- A hard, gray to white metallic element that is very resistant to corrosion. It has the highest melting point of all elements, and it retains its strength at high temperatures. It is used to make light-bulb filaments and to increase the hardness and strength of steel. Atomic number 74; atomic weight 183.84; melting point 3,410°C; boiling point 5,900°C; specific gravity 19.3 (20°C); valence 2, 3, 4, 5, 6.
- Also called wolfram
- See Periodic Table
Other Words From
- tung·sten·ic [tuhng-, sten, -ik], adjective
Word History and Origins
Origin of tungsten1
Word History and Origins
Origin of tungsten1
Example Sentences
Comparing how the various sets of atoms interfered, both with and without the tungsten mass, teased out a phase shift that was not due to the gravitational force.
Last month, cryptocurrency fans made headlines for their newly discovered love of cubes made from tungsten, an ultra-dense metal.
Jack Dorsey, the erstwhile CEO of Twitter and a current fan of tungsten cubes, announced on Wednesday that his digital payment company Square would change its name to “Block.”
To help with its entry, Perseverance dropped about 78 kilograms of tungsten as the rover landed about 3,450 kilometers from InSight.
This changed when David Hubel, a 32-year-old scientist from Canada, through careful machining methods, invented a tungsten electrode and a hydraulic positioning system, as part of his postdoctoral research at Johns Hopkins University.
The raw materials— tin, tantalum, tungsten and gold—were dubbed “conflict minerals.”
The Mojave is rich with silver, tungsten, gold, and iron deposits.
In China, for example, tungsten, tantalum, tin and gold are mined and ore is imported from other countries.
Tungsten, tantalum, tin and gold are used to produce many common consumer electronics devices.
And when you review the periodic table, take special note of Tungsten, or Wolfram.
This property may be increased by alloying the steel with tungsten and hardening it before it is magnetized.
Magneto field magnets are always made of tungsten steel alloy, so treated that it will retain its magnetism for lengthy periods.
The operation of mounting Tungsten filaments in small copper wire is very much like threading an exceedingly small needle.
More efficient lamps have been devised with filaments of the metals tantalum and tungsten (Fig. 274).
How many candle power should a 20-watt tungsten lamp give if its efficiency is one watt per candle power?
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