HELIOSTAT

Etymology

Noun

heliostat (plural heliostats)

A device that includes a plane mirror which turns so as to keep reflecting sunlight toward a predetermined target, compensating for the sun's apparent motions in the sky. The target may be a physical object, distant from the heliostat, or a direction in space, and is almost always stationary relative to the heliostat, so the light is reflected in a fixed direction.

Anagrams

• loathiest, thiolates

Source: Wiktionary


He"li*o*stat, n. Etym: [Helio- + Gr. héliostate.]

Definition: An instrument consisting of a mirror moved by clockwork, by which a sunbeam is made apparently stationary, by being steadily directed to one spot during the whole of its diurnal period; also, a geodetic heliotrope.

Source: Webster’s Unabridged Dictionary 1913 Edition



RESET




Word of the Day

7 November 2024

ERASE

(verb) remove by or as if by rubbing or erasing; “Please erase the formula on the blackboard--it is wrong!”


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Coffee Trivia

An article published in Harvard Men’s Health Watch in 2012 shows heavy coffee drinkers live longer. The researchers examined data from 400,000 people and found out that men who drank six or more coffee cups per day had a 10% lower death rate.

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