Wilson Bentley
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Wilson Alwyn Bentley, also known as Snowflake Bentley, was an American meteorologist and photographer, who was the first known person to take detailed photographs of snowflakes and record their featur
Bentley at work
Bentley in 1909
Snowflake photos by Bentley, c. 1902
Bentley snowflake micrograph, 1890
Sublimation
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Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the intermediate liquid state. The verb form of sublimation is sublime, or less preferabl
Wilson Bentley
…record their features. He perfected a process of catching flakes on black velvet such that their images could be captured before they either melted or sublimated, and elaborated the theory that no two snowflakes are identical. Kenneth G. Libbrecht notes that the techniques used by Bentley to photograph snowflakes…
Dark green crystals of nickelocene, sublimed and freshly deposited on a cold finger
Dry ice subliming in air
Experimental set up for the sublimation reaction of naphthalene, solid naphthalene sublimes and form the crystal-like structure at the bottom of the watch glass
Solid compound of naphthalene sublimed to form a crystal-like structure on the cool surface