; Tungsten carbide: Normally, there are two ways to use tungsten carbide to make saw blades:

The slider caused two problems with the Tungsten T. One drawback was that the Tungsten T was notorious for needing frequent manual recalibration of the digitizer after about one year of use.

By November 2007, North American Tungsten stated that Cantung had approximately two years of tungsten reserves left, but, combined with its Mactung operation, the two hold 15 % of the world's known tungsten.

Only two roads lead into the Mackenzie Mountains, both in the Yukon: the Nahanni Range Road leading to the townsite of Tungsten and the Canol Road leading to the Macmillan Pass.

Tungsten carbide drill bits.

Tungsten lighting is defined at 3200 K, which is considered " warmer " in tone and shifted towards orange ; daylight is defined at 5600 K, which is considered " colder " and shifted towards blue.

Tungsten interferes with the formation of cementite, allowing martensite to preferentially form at slower quench rates, resulting in high speed steel.

Tungsten tips are usually made by electrochemical etching, and platinum-iridium tips by mechanical shearing.

Tungsten is normally used in thermionic electron guns because it has the highest melting point and lowest vapour pressure of all metals, thereby allowing it to be heated for electron emission, and because of its low cost.

Tungsten, also known as wolfram (), is a chemical element with the chemical symbol W and atomic number 74.

Tungsten with minor amounts of impurities is often brittle and hard, making it difficult to work.

Tungsten compounds are most often used industrially as catalysts.

Tungsten is the only metal from the third transition series that is known to occur in biomolecules, where it is used in a few species of bacteria.

Tungsten interferes with molybdenum and copper metabolism, and is somewhat toxic to animal life.

Tungsten was the old Swedish name for the mineral scheelite.

Tungsten objects are also commonly formed by sintering.

Tungsten has the lowest coefficient of thermal expansion of any pure metal.

Tungsten also has 4 meta states, the most stable being < sup > 179m </ sup > W ( T < sub > ½ </ sub > 6. 4 minutes ).

The most common formal oxidation state of tungsten is + 6, but it exhibits all oxidation states from − 2 to + 6 .< ref > Tungsten typically combines with oxygen to form the yellow tungstic oxide, WO < sub > 3 </ sub >, which dissolves in aqueous alkaline solutions to form tungstate ions,.

Tungsten carbides ( W < sub > 2 </ sub > C and WC ) are produced by heating powdered tungsten with carbon.

Tungsten trioxide can form intercalation compounds with alkali metals.

Tungsten is extracted from its ores in several stages.

Tungsten is not traded as a futures contract and cannot be tracked on exchanges like the London Metal Exchange.

Tungsten is mainly used in the production of hard materials based on tungsten carbide, one of the hardest carbides, with a melting point of 2770 ° C.

Tungsten carbide rings are brittle, however, and may crack under a sharp blow.

Tungsten has also been used in Dense Inert Metal Explosives, which use it as dense powder to reduce collateral damage while increasing the lethality of explosives within a small radius.

Tungsten ( IV ) sulfide is a high temperature lubricant and is a component of catalysts for hydrodesulfurization.

Tungsten oxides are used in ceramic glazes and calcium / magnesium tungstates are used widely in fluorescent lighting.

But it seems that pressures against him are coming from somewhere -- in the first place from China, but perhaps also from that `` China Lobby '' which, I was assured in Moscow nearly two years ago, exists on the quiet inside the party.

By this standard, it is determined that where two stations operating on the same frequency are involved, objectionable interference from station A exists at any point within the service area of station B where station A's signal is of an intensity one-twentieth or more of the strength of station B's signal at that point.

It seems to follow that by and large an antagonism exists between the paleo- and the neocortex as far as emotional reactivity is concerned, and that the balance between the two systems determines the emotional responsiveness of the organism.

The good feeling which exists between these two important church figures is now well known in England.

Antimony exists as two stable isotopes, < sup > 121 </ sup > Sb with a natural abundance of 57. 36 % and < sup > 123 </ sup > Sb with a natural abundance of 42. 64 %.

Among the letters of Julian are two ( 29 and 30 ) addressed to Alypius ; one inviting him to Rome, the other thanking him for a geographical treatise, which no longer exists.

At some moment a price difference exists, and the problem is to execute two or three balancing transactions while the difference persists ( that is, before the other arbitrageurs act ).

It is not known whether a pair of coprime amicable numbers exists, though if any does, the product of the two must be greater than 10 < sup > 67 </ sup >.

During these experiments, < sup > 261 </ sup > Bh was also identified in the 2n evaporation channel and it was confirmed that < sup > 262 </ sup > Bh exists as two states-a ground state and an isomeric state.

Although no confirmation exists that these two ships were controlled by Teach and Bonnet, author Angus Konstam believes it very likely they were.

While a large trade in both types of diamonds exists, the two markets act in dramatically different ways.

There also exists multistage sampling, where more than two steps are taken in selecting clusters from clusters.

The two functors F and G are called naturally isomorphic if there exists a natural transformation from F to G such that η < sub > X </ sub > is an isomorphism for every object X in C.

Chagas exists in two different ecological zones.

Content filtering technology exists in two major forms: application gateway or packet inspection.

Unless two substances are fully miscible there exists a concentration at which no further solute will dissolve in a solution.

For example, a point on the unit circle in the plane can be specified by two Cartesian coordinates, but one can make do with a single coordinate ( the polar coordinate angle ), so the circle is 1-dimensional even though it exists in the 2-dimensional plane.

It is known that the least order of a finite group for which there exists two commutators whose product is not a commutator is 96 ; in fact there are two nonisomorphic groups of order 96 with this property.

The composition of any two elements of G exists, because the domain and codomain of any element of G is A.

The objects are the elements of G, and for any two elements x and y of G, there exists a unique morphism from x to y if and only if x ~ y.

If neither A nor B includes the idea of existence, then " some A are B " simply adjoins A to B. Conversely, if A or B do include the idea of existence in the way that " triangle " contains the idea " three angles equal to two right angles ", then " A exists " is automatically true, and we have an ontological proof of A's existence.

In particular, the greatest common divisor of any two elements exists and can be written as a linear combination

He famously put the point into dramatic relief with his 1939 essay " Proof of an External World ", in which he gave a common sense argument against scepticism by raising his right hand and saying " Here is one hand ," and then raising his left and saying " And here is another ," then concluding that there are at least two external objects in the world, and therefore that he knows ( by this argument ) that an external world exists.

If R is an integral domain then any two gcd's of a and b must be associate elements, since by definition either one must divide the other ; indeed if a gcd exists, any one of its associates is a gcd as well.