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A correction fluid is an opaque, usually white fluid applied to paper to mask errors in text. Once dried, it can be handwritten or handdrawn upon. It is typically packaged in small bottles, with lids attached to brushes (or triangular pieces of foam) that dip into the fluid. The brush applies the fluid to the paper.
Contact lens. A pair of contact lenses, positioned with the concave side facing upward. Putting contacts in and taking them out. One-day disposable contact lenses with blue handling tint in blister-pack packaging. Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic ...
Hyperkalemia is an elevated level of potassium (K +) in the blood. [ 1] Normal potassium levels are between 3.5 and 5.0 mmol/L (3.5 and 5.0 mEq/L) with levels above 5.5 mmol/L defined as hyperkalemia. [ 3][ 4] Typically hyperkalemia does not cause symptoms. [ 1]
Ringer's lactate solution ( RL ), also known as sodium lactate solution, Lactated Ringer's, and Hartmann's solution, is a mixture of sodium chloride, sodium lactate, potassium chloride, and calcium chloride in water. [ 1] It is used for replacing fluids and electrolytes in those who have low blood volume or low blood pressure. [ 2]
An illustration of Newton's method. In numerical analysis, Newton's method, also known as the Newton–Raphson method, named after Isaac Newton and Joseph Raphson, is a root-finding algorithm which produces successively better approximations to the roots (or zeroes) of a real-valued function.
Graham offered her correction fluid to IBM, which declined the offer (the company announced its own Correcting Selectric with an integrated lift-off tape in 1973). By 1968, the product – now renamed Liquid Paper – was profitable, and in 1979 the company was sold to the Gillette Corporation for $47.5 million with royalties.
Wite-Out dates to 1966, when Edwin Johanknecht, an insurance -company clerk, sought to address a problem he observed in correction fluid available at the time: a tendency to smudge ink on photostatic copies when it was applied. Johanknecht enlisted the help of his associate George Kloosterhouse, a basement waterproofer who experimented with ...
Correction fluid was a kind of opaque, white, fast-drying paint that produced a fresh white surface onto which, when dry, a correction could be retyped. However, when held to the light, the covered-up characters were visible, as was the patch of dry correction fluid (which was never perfectly flat, and frequently not a perfect match for the ...