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An anemoscope is an obsolete machine invented to show the direction of the wind
WIND

The Global Geospace Science WIND satellite is a NASA science spacecraft launched at 04:31:00 EST on November 1, 1994 from launch pad 17B at Cape Canaveral Air Force Station in Merritt_Island%2C_Florida, Florida aboard a McDonnell Douglas Delta II 7925-10 rocket....
, or to foretell a change of wind direction or weather.

Hygroscopic devices, in particular those utilizing cat
Cat

The cat , also known as the Domestication cat or house cat to distinguish it from other Felinae and Felidae, is a small predationy carnivore species of crepuscular mammal that is valued by humans for its companionship and its ability to hunt vermin, snakes, scorpions, and other unwanted household pests....
 guts (or perhaps catgut
Catgut

Catgut is a type of cord usually prepared from the intestines of sheep or goat. It can also be made using the intestines of a Hog , horse, mule, pig or donkey....
), were considered as very good anemoscopes, seldom failing to foretell the shifting of the wind.

The ancient anemoscope seems, by Vitruvius
Vitruvius

File:Vitruvius.jpgMarcus Vitruvius Pollio was a Ancient Rome writer, architect and engineer , active in the 1st century BC. By his own description Vitruvius served as a Ballista , the third class of arms in the military offices....
's description of it, to have been intended rather to show which way the wind actually blew, than to foretell into which quarter it would change.

Otto von Guericke
Otto von Guericke

Otto von Guericke...
 also gave the title anemoscope to a machine invented by him to foretell the change of the weather, as to fair and rain.






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An anemoscope is an obsolete machine invented to show the direction of the wind
WIND

The Global Geospace Science WIND satellite is a NASA science spacecraft launched at 04:31:00 EST on November 1, 1994 from launch pad 17B at Cape Canaveral Air Force Station in Merritt_Island%2C_Florida, Florida aboard a McDonnell Douglas Delta II 7925-10 rocket....
, or to foretell a change of wind direction or weather.

Hygroscopic devices, in particular those utilizing cat
Cat

The cat , also known as the Domestication cat or house cat to distinguish it from other Felinae and Felidae, is a small predationy carnivore species of crepuscular mammal that is valued by humans for its companionship and its ability to hunt vermin, snakes, scorpions, and other unwanted household pests....
 guts (or perhaps catgut
Catgut

Catgut is a type of cord usually prepared from the intestines of sheep or goat. It can also be made using the intestines of a Hog , horse, mule, pig or donkey....
), were considered as very good anemoscopes, seldom failing to foretell the shifting of the wind.

The ancient anemoscope seems, by Vitruvius
Vitruvius

File:Vitruvius.jpgMarcus Vitruvius Pollio was a Ancient Rome writer, architect and engineer , active in the 1st century BC. By his own description Vitruvius served as a Ballista , the third class of arms in the military offices....
's description of it, to have been intended rather to show which way the wind actually blew, than to foretell into which quarter it would change.

Otto von Guericke
Otto von Guericke

Otto von Guericke...
 also gave the title anemoscope to a machine invented by him to foretell the change of the weather, as to fair and rain. It consisted of a little wooden man, who rose and fell in a glass tube, as the atmospheric pressure
Pressure

Pressure is the force per unit area applied to an object in a direction surface normal to the surface. Gauge pressure is the pressure relative to the local atmospheric or ambient pressure....
 increased or decreased. Accordingly, M. Comiers has shown that this was simply an application of the common barometer
Barometer

A barometer is an instrument used to measure atmospheric pressure. It can measure the pressure exerted by the atmosphere by using water, air, or mercury ....
. This form of the anemoscope was invented by Leonardo Da Vinci
Leonardo da Vinci

Leonardo di ser Piero da Vinci was an Italy polymath, being a scientist, mathematician, engineer, inventor, anatomist, Painting, sculptor, architect, botanist, musician and writer....
.

See also

  • Anemometer
    Anemometer

    An anemometer is a device that is used for measuring wind speed, and is one instrument used in a weather station. The term is derived from the Greek word anemos, meaning wind....