vapour burner
21Fragrance lamp — Refimprove|date=July 2007A fragrance lamp, also known as a perfume lamp, effusion lamp, catalytic lamp or simply by the name brand Lampe Berger, Bel Air, Scentier or many other brands is a catalytic diffusion lamp that purifies the air while… …
22oxidation–reduction reaction — ▪ chemical reaction Introduction also called redox reaction any chemical reaction in which the oxidation number of a participating chemical species changes. The term covers a large and diverse body of processes. Many oxidation– reduction… …
23Crucible — For other uses, see Crucible (disambiguation). A modern crucible used in the production of silicon ingots via the Czochralski process A crucible is a container used for metal, glass, and pigment production as well as a number of modern laboratory …
24Condenser (laboratory) — Two different condensers are seen here: an air cooled fractionating column on left, and a Liebig condenser on the right In a laboratory a condenser is a piece of laboratory glassware used to cool hot vapors or liquids. [1] A condenser usually… …
25Polychlorinated biphenyl — PCBs redirects here. For printed circuit boards, see printed circuit board. Labelling transformers containing PCBs …
26Lighter — For other uses, see Lighter (disambiguation). A generic, disposable lighter …
27Liquefied petroleum gas — (also called LPG, GPL, LP Gas, or liquid propane gas) is a flammable mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles. It is increasingly used as an aerosol propellant and a refrigerant, replacing chlorofluorocarbons …
28Lighter than air — Some gases are buoyant in air because they have densities lower than that of air (about 1.2 kg/m3, 1.2 g/l). Lighter than air gases are used to fill craft called aerostats, which include free balloons, moored balloons, and airships, to make the… …
29Taoism — Taoist, n., adj. Taoistic, adj. /dow iz euhm, tow /, n. 1. the philosophical system evolved by Lao tzu and Chuang tzu, advocating a life of complete simplicity and naturalness and of noninterference with the course of natural events, in order to… …
30Daoism — or Taoism Major Chinese religio philosophical tradition. Though the concept of dao was employed by all Chinese schools of thought, Daoism arose out of the promotion of dao as the social ideal. Laozi is traditionally regarded as the founder of… …
