Search results
Results From The WOW.Com Content Network
Note the white purified camphor on the cold finger, and the dark-brown crude product. Dark green crystals of nickelocene , freshly sublimed on the cold finger of the sublimation apparatus. A typical sublimation apparatus separates a mix of appropriate solid materials in a vessel in which it applies heat under a controllable atmosphere (air ...
Dark green crystals of nickelocene, sublimed and freshly deposited on a cold finger Sublimation of iodine. Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state. [1] The verb form of sublimation is sublime, or less preferably, sublimate. [2]
A virga, also called a dry storm, is an observable streak or shaft of precipitation that evaporates or sublimates before reaching the ground. [1] A shaft of precipitation that does not evaporate before reaching the ground is known in meteorology as a precipitation shaft.
The cold may not be many people’s favorite thing, but if you can brave the temperatures and spend time somewhere with snow in the forecast, it’s worth it to go outside and enjoy the sound of a ...
The sublimated material collects (5) on the cold finger proper, cooled by a coolant (blue) circulated through ports 1 and 2. A cold finger is a piece of laboratory equipment that is used to generate a localized cold surface. It is named for its resemblance to a finger and is a type of cold trap. The device usually consists of a chamber that a ...
The following processes have the corresponding results: smooth—deposition without wind; wavy—wind deposited snow; concave furrows—melt and sublimation; convex furrows—rain or melt; random furrows—erosion. Snow covered area (SCA) describes the extent of snow-covered ground, usually expressed as a fraction (%) of the total.
FitzRoy carefully documented his claims on how the storm glass would predict the weather: [3] [failed verification] A catalogue of storm glasses c. 1863. If the liquid in the glass is clear, the weather will be bright and clear. If the liquid is cloudy, the weather will be cloudy as well, perhaps with precipitation.
Snow accumulates from a series of snow events, punctuated by freezing and thawing, over areas that are cold enough to retain snow seasonally or perennially. Major snow-prone areas include the Arctic and Antarctic , the Northern Hemisphere, and alpine regions.