The color of a kittenâs fur can give clues to its sex. Certain colors, like calico (large patches of black, white, and orange) and tortoiseshell (marbled black, orange/brown, and sometimes white), are carried on the X chromosome and require two X chromosomes to appear.
Tungsten, also known as wolfram, is a chemical element with the chemical symbol W and atomic number 74. The word tungsten comes from the Swedish language tung sten directly translatable to heavy stone, though the name is volfram in Swedish to distinguish it from Scheelite, in Swedish alternatively named tungsten.
The word 'tungsten' is derived from the Swedish words 'tung' and 'sten,' meaning heavy stone.. Tungsten's chemical symbol, W, comes from its early Germanic name, 'wolfram.' The word 'wolfram' comes from the mineral wolframite, meaning the devourer of tin.. Tungsten is frequently alloyed with steel to create tough metals, which have stability even at high temperatures. This alloy is used to make equipment such as high-speed cutting tools and dental drills. Tungsten and its alloys are also used to make filaments for electric lamps and television tubes.