Mercury (element) polluted water. They arise by a process known as biomethylation. Mercury is used primarily for the manufacture of industrial chemicals or for electrical and electronic applications. It is used in some thermometers, especially ones which are used to measure high temperatures. A still increasing amount is used as gaseous mercury in fluorescent lamps, while most of the other applications are slowly phased out due to health and safety regulations and is in some applications replaced with less toxic but considerably more expensive Galinstan alloy. Mercury and its compounds have been used in medicine, although they are much less common today
Willem van Heythuysen Posing with a Sword Willem van Heythuysen Posing with a Sword Willem van Heythuysen posing with a sword is a painting by the Dutch Golden Age painter Frans Hals, painted in 1625 and now in the Alte Pinakothek, Munich. It shows the Haarlem cloth merchant Willem van Heythuysen in a theatrical pose with a rapier. The painting shows a proud man standing in front of a neoclassical architectural element with drapery, leaning on a sword. In the distance a garden with a couple can be seen, and in the foreground some roses lie on the ground. It was first documented by Adriaan Loosjes, who