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During the Victorian era the hatters' malaise became proverbial, as reflected in popular expressions like "mad as a hatter" (see below) and "the hatters' shakes". [17] [25] [26] The first description of symptoms of mercury poisoning among hatters appears to have been made in St Petersburg, Russia, in 1829. [14]
Lexicographers William and Mary Morris in Morris Dictionary of Word and Phrase Origins (1977) favour this derivation because "mad as a hatter" was known before hat making was a recognized trade. [1] According to A Dictionary of Common Fallacies (1980), "'mad' meant 'venomous' and 'hatter' is a corruption of 'adder', or viper, so that the phrase ...
Honey made from the nectar and so containing pollen of these plants also contains grayanotoxins and is commonly referred to as mad honey. [3] Consumption of the plant or any of its secondary products, including mad honey, can cause a rare poisonous reaction called grayanotoxin poisoning, mad honey disease, honey intoxication, or rhododendron ...
The use of toxic gases or other chemicals, including mustard gas, during warfare is known as chemical warfare, and this kind of warfare was prohibited by the Geneva Protocol of 1925, and also by the later Chemical Weapons Convention of 1993. The latter agreement also prohibits the development, production, stockpiling, and sale of such weapons.
Mad Hatter becomes Mac Hatter and gives one riddle to the main character : "Spread blood on the birthday cake". [23] The Mad Hatter's name is used in Elton John's 1972 song Mona Lisas and Mad Hatters. The Mad Hatter is referenced to in the eponymous 2015 song by Melanie Martinez, next to a few other characters from Carroll's Alice in Wonderland ...
Most hydrogen cyanide is used in industrial processes, made by companies in Germany, Japan, the Netherlands and the US. [52] [53] Degesch resumed production of Zyklon B after the war. The product was sold as Cyanosil in Germany and Zyklon in other countries. It was still produced as of 2008. [54] Degussa sold Degesch to Detia-Freyberg GmbH in 1986.
Poppers (or popper) is a slang term referring to recreational drugs belonging to the alkyl nitrite family of chemical compounds.When fumes from these substances are inhaled, they act as potent vasodilators, producing mild euphoria, warmth, and dizziness.
A synthetic element is one of 24 known chemical elements that do not occur naturally on Earth: they have been created by human manipulation of fundamental particles in a nuclear reactor, a particle accelerator, or the explosion of an atomic bomb; thus, they are called "synthetic", "artificial", or "man-made".