1) Reflecting instrument 2) Solar energy 3) Sunbeam reflector
Found on
https://www.crosswordclues.com/clue/heliostat
A heliostat (from helios, the Greek word for sun, and stat, as in stationary) is a device that includes a mirror, usually 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 directi....
Found on
http://en.wikipedia.org/wiki/Heliostat
• (n.) 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.
Found on
http://thinkexist.com/dictionary/meaning/heliostat/
instrument used in solar telescopes to orient and focus sunlight along a fixed direction. A typical heliostat consists of a flat plane mirror and a ... [1 related articles]
Found on
http://www.britannica.com/eb/a-z/h/33
A device that tracks the movement of the sun; used to orient solar concentrating systems. Related category • SOLAR ENERGY AND POWER
Found on
http://www.daviddarling.info/encyclopedia/H/AE_heliostat.html
A movable flat mirror used to reflect sunlight into a stationary solar telescope. If the telescope is aligned with Earth's axis, only one mirror is needed. A heliostat is similar to a coelostat, but has a simpler design and (unlike the coelostat) makes the image of the Sun rotate as the Sun moves al...
Found on
http://www.daviddarling.info/encyclopedia/H/heliostat.html
He'li·o·stat noun [
Helio- + Greek ... placed, standing, from ... to place, stand: confer French
héliostate .] 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 ...
Found on
http://www.encyclo.co.uk/webster/H/28
The heliostat is an instrument invented by Gauss in 1821, by means of which rays of the sun can be flashed to great distances. It consists of an adjustable mirror or reflector, worked in connection with a combination of telescopes and was formerly used in trigonometrical surveys allowing measurements of hundreds of miles to be made.
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http://www.probertencyclopaedia.com/browse/GH.HTM
heliostat 1. An instrument that reflects the sun's rays in a continuous beam and in various directions, and which can therefore serve as a signaling station; the device is clock-driven so that it points at all times toward the sun. 2. A system of plane mirrors that continuously adjust in angle according to the sun's position, so as to reflect a be...
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http://www.wordinfo.info/words/index/info/view_unit/2026/7
A device that tracks the movement of the sun; used to orient solar concentrating systems.
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https://www.encyclo.co.uk/local/22819
No exact match found.
