You have to drill penetration of tungsten steel,

After penetration, the projectile detonates Tungsten flipping through the concrete.

The response to a bad idea like, say, a tungsten light bulb is a better idea. OK?

Silicon carbide, SiC (carborundum) is a hard, high melting solid and a well known abrasive.

The mineral form of silicon carbide was named moissanite in honor of Moissan later on in his life.

And then what about us? We, the higher elements we, made out of oxygen, carbon, nitrogen, tungsten, iron.

Maybe my speeds and feeds were set up for high speed steel drill but I've got a carbide drill in the machine

At first, he mistakenly identified the crystals as diamonds, but in 1904 he identified the crystals as silicon carbide.

Boron carbide, B4C, on the other hand, has an unusual structure which includes icosahedral boron units linked by carbon atoms.

Then, most of the explosion, the penetration of tungsten steel actually penetrated to the end there is no doubt and then hit this concrete block and continued

In 1898 Adolph Frank and Nikodem Caro decoupled the process and first produced calcium carbide and in a subsequent step reacted it with nitrogen to calcium cyanamide.

(a) Annual and quarterly statistical bulletins on tungsten and tin annual and, with the assistance of a trust fund, quarterly statistical publications on iron ore and annual statistics on bauxite alumina aluminium (all the issues for 1993 have been published)

Theoretically, all five can decay into isotopes of element 72 (hafnium) by alpha emission, but only 180W has been observed ref to do so with a half life of (1.8 0.2) 1018 years on average, this yields about two alpha decays of 180W in one gram of natural tungsten per year.