Bubonic Plague was known as the Black Death and had been known in England for centuries. It was a ghastly disease. The victim's skin turned black in patches and inflamed glands or 'buboes' in the groin, combined with compulsive vomiting, swollen tongue and splitting headaches made it a horrible, agonizing killer.
Uses of Tin. Tin is mostly commonly used in alloys, and in tin plate which is a thin sheet of steel with a protective coating of tin. Tin plate is used for food cans because it is not reactive to the acids present in food.
Tungsten and its alloys are widely used for filaments in older style (not energy saving) electric bulbs and electronic tubes. It is used for making heavy metal alloys because of its hardness. Tungsten is used for high-temperature applications such as welding. High speed steel (which can cut material at higher speeds than carbon steel), contains up to 18% tungsten. Tungsten carbide (WC or W 2 C) is extremely hard and is used to make drills.