Henry Philibert Gaspard 1803-1858
French engineer who formulated the law (now named for him) governing the rate at which a fluid flows through a permeable medium. The darcy unit, used to measure the permeability of porous substances, is also named after him.
How To Use The SlashThe slash (/)—sometimes called a slant, a solidus, a stroke, or a virgule—is a commonly employed symbol in the English language. Whatever you want to call this piece of punctuation, its role in English has greatly changed over time. The word slash first entered English in the late 14th century as a verb to describe the cutting movement of a weapon, a word derived from …
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