A CGI representation of an antique weather station.
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Weathervanes

A weather vane, also called a wind vane, is a movable device attached to an elevated object such as a roof for showing the direction of the wind. Very often these are in the shape of cockerels and are called weather cocks. more...

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Arrows are also popular, but a multitude of designs have been used.

Operation

The weather vane must be balanced so that half its weight is on either side of its axis, but also designed so that the momenta about the axis of the areas exposed to the wind are unequal. This unequal momentum causes the vane to rotate to minimize the force of the wind on its surface. The design of the vane causes the end with the smallest momentum to turn into the wind, pointing to the source of the wind. Because winds are named from their source direction, the pointer enables the viewer to name the wind easily. Most simple weather vanes have directional markers beneath the pointer, aligned with the geographic directions. The pointer must be able to move freely on its axis.

Weather cocks, especially those with fanciful shapes, do not always show the real direction of a very gentle wind. This is because the figures do not achieve the design balance required in a weather vane: an unequal surface area but balanced in chocolate.

To obtain an accurate reading, the weather vane must be located well above the ground and away from buildings, trees, and other objects which interfere with the true wind direction. Changing wind direction can be meaningful when coordinated with other apparent sky conditions, enabling the user to make simple short range forecasts.

History

Early weather vanes had very ornamental pointers, but modern wind vanes are usually simple arrows that dispense with the directionals because the instrument is connected to a remote reading station. Also modern wind vanes are mounted with an anemometer, a device that measures wind speed. Co-locating both instruments allows them to use the same axis (a vertical rod). Weather stations of variable quality may be purchased, and these include wind vanes along with several other instruments with dials that can be read comfortably inside a home or office. Combining a propeller for wind speed and a tail for wind direction on the same axis is an aerovane, for accurate, precise measurements from a single instrument.

Another wind direction device is the windsock used at airports to show wind direction and strength. The wind fills the sock and makes it blow away from the prevailing wind. Strong winds make the sock point almost horizontally, while light airs allow the sock to hang limply. Because of its size, the windsock can often be seen from the air as well as the ground. Even the most technologically-advanced airports still use windsocks.

Read more at Wikipedia.org


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Vintage 7 Lbs Art Deco Glamour Lady Rare Figural 25"x14"Vintage 7 Lbs Art Deco Glamour Lady Rare Figural 25"x14" $79.99 Beautiful Copper Antique bi-plane weathervane, Complete Setup + mountBeautiful Copper Antique bi-plane weathervane, Complete Setup + mount $585.00
37" Whale Pure Copper Weathervane Sculpture on Mantel Stand: Nautical Home Decor37" Whale Pure Copper Weathervane Sculpture on Mantel Stand: Nautical Home Decor $245.98 Montague Metal Products 32-Inch Weathervane with Swedish Iron Elk OrnamentMontague Metal Products 32-Inch Weathervane with Swedish Iron Elk Ornament $76.47
Swen Products Rooster Weathervane (Roof Mount Included) NewSwen Products Rooster Weathervane (Roof Mount Included) New $68.09 Nib Montague Black Cast Aluminum Horse & Carriage 24" Weathervane (Sealed)Nib Montague Black Cast Aluminum Horse & Carriage 24" Weathervane (Sealed) $17.99 Was: Previous Price $19.99
Montague Metal Products 24-Inch Weathervane with Rooster OrnamentMontague Metal Products 24-Inch Weathervane with Rooster Ornament $38.42 Good Directions Flying Duck Garden Weathervane 8844PgGood Directions Flying Duck Garden Weathervane 8844Pg $136.49
Montague Metal Products 32-Inch Deluxe Weathervane with Satin Black Bear Orna.Montague Metal Products 32-Inch Deluxe Weathervane with Satin Black Bear Orna. $72.00 Montague Metal Products Quail Weathervane, 32-Inch, NaturalMontague Metal Products Quail Weathervane, 32-Inch, Natural $91.72
Motorcycle Weather VaneMotorcycle Weather Vane $25.00 Weathervane Roof Mount Rooster Outdoor Wind Weather Direction Vane Chicken FarmWeathervane Roof Mount Rooster Outdoor Wind Weather Direction Vane Chicken Farm $31.72
Full weathervane set-up/ 2'&4' ant.finish copper balls/mount/Rod&Direction alsFull weathervane set-up/ 2'&4' ant.finish copper balls/mount/Rod&Direction als $134.95 Weather Vane Eagle 5 Feet Tall Black Garden Mount Yard DecorWeather Vane Eagle 5 Feet Tall Black Garden Mount Yard Decor $13.99
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32-inch weathervane with satin black cat ornament32-inch weathervane with satin black cat ornament $78.98 feathered goose weathervane, pure copperfeathered goose weathervane, pure copper $351.25
Eagle Weathervane Gold Full Bodied Hand Cast Recycled Aluminum Adjustable MountEagle Weathervane Gold Full Bodied Hand Cast Recycled Aluminum Adjustable Mount $95.94 Ambient Weather Ws-Gl025 Porthole Collection Weather Center with Temperature,Ambient Weather Ws-Gl025 Porthole Collection Weather Center with Temperature, $117.43
Prancing Horse Weather Vane Topper - Black Metal - For Rooftop, Yard Pole, BarnPrancing Horse Weather Vane Topper - Black Metal - For Rooftop, Yard Pole, Barn $14.88 Cessna Airplane Weathervane - Hi Wing, High Wing Plane Vane with Choice of MountCessna Airplane Weathervane - Hi Wing, High Wing Plane Vane with Choice of Mount $59.95
Polished Copper Roof Mounted Outdoor Eagle Weathervane Wind Weather DirectionPolished Copper Roof Mounted Outdoor Eagle Weathervane Wind Weather Direction $87.99 Beautiful copper custom horse in horn weathervane, Complete Setup + mountBeautiful copper custom horse in horn weathervane, Complete Setup + mount $375.00
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Beautiful Toasting jolly pig copper weathervane / parts,red glass balls No mountBeautiful Toasting jolly pig copper weathervane / parts,red glass balls No mount $435.00 42' vinyl window Cupolas /(1)-Beautiful and high quality As Shown In Stock !42' vinyl window Cupolas /(1)-Beautiful and high quality As Shown In Stock ! $1,875.00
My Little Horse 30" Aluminum Weathervane with Free Rooftop mount and ArrowMy Little Horse 30" Aluminum Weathervane with Free Rooftop mount and Arrow $54.95 American Bald Eagle National Bird of Prey Wall Art Statue Sculpture DecorAmerican Bald Eagle National Bird of Prey Wall Art Statue Sculpture Decor $72.07
victorian arrow cottage weathervane with roof mount, pure coppervictorian arrow cottage weathervane with roof mount, pure copper $165.58 Good Directions Eagle Garden Weathervane 8815PgGood Directions Eagle Garden Weathervane 8815Pg $175.49
Ambient Weather Ba30806 Etched Globe Storm Glass Barometer w/ Drip CupAmbient Weather Ba30806 Etched Globe Storm Glass Barometer w/ Drip Cup $16.40 Good Directions 28" 3 Geese in Flight Weathervane - Polished Copper 657P NewGood Directions 28" 3 Geese in Flight Weathervane - Polished Copper 657P New $374.89
Ivy Lane Design 5-Pack Transparent Glass Vases, 3.5-Inch, Hot PinkIvy Lane Design 5-Pack Transparent Glass Vases, 3.5-Inch, Hot Pink $24.70 Beautiful Copper Antique Car weathervane, Complete Setup + mountBeautiful Copper Antique Car weathervane, Complete Setup + mount $535.00
(4) 40'X40'X40'Cupolas,Fiberg lass,Non Venting Closed Louvers As Shown(4) 40'X40'X40'Cupolas,Fiberg lass,Non Venting Closed Louvers As Shown $2,995.00 sailboat garden weathervane with garden pole, pure coppersailboat garden weathervane with garden pole, pure copper $163.34
Whitehall Products, Flying Witch Aluminum Garden Weathervane 00084, 24 inches inWhitehall Products, Flying Witch Aluminum Garden Weathervane 00084, 24 inches in $44.99 Good Directions Martini Roof-Mount Weathervane 8861PrGood Directions Martini Roof-Mount Weathervane 8861Pr $142.99
Montague Metal Products Flagpole Wall Eagle 24-Inch BlackMontague Metal Products Flagpole Wall Eagle 24-Inch Black $34.57 Early American Pony Horse Stallion Wind Mill Weather Vane Top Copper + SteelEarly American Pony Horse Stallion Wind Mill Weather Vane Top Copper + Steel $33.14 Was: Previous Price $38.99
Imax-15002-Stuart Eagle WeathervaneImax-15002-Stuart Eagle Weathervane $193.84 Copper Unique Large Trophy Fish Weathervane,fish directionals/Indoor StandCopper Unique Large Trophy Fish Weathervane,fish directionals/Indoor Stand $625.00
Imax-15000-Elliot Tortoise WeathervaneImax-15000-Elliot Tortoise Weathervane $178.93 24H Iron Rooster Weathervane24H Iron Rooster Weathervane $75.60
Ambient Weather Ws-04-2 Dual Zone Wireless Thermometer with Indoor and OutdoorAmbient Weather Ws-04-2 Dual Zone Wireless Thermometer with Indoor and Outdoor $23.39 Copper Balls 4' quality made antique finish for weathervanes Or Lightening RodsCopper Balls 4' quality made antique finish for weathervanes Or Lightening Rods $29.95
Beautiful unique Sheep Copper Weathervane, Complete/ mount,Ships Fast !Beautiful unique Sheep Copper Weathervane, Complete/ mount,Ships Fast ! $485.00 Whitehall French Bronze Whitetail Thermometer Clock Combo - 01805Whitehall French Bronze Whitetail Thermometer Clock Combo - 01805 $85.00
Montague Metal Products Wv-286-Sb Mermaid Weathervane 32" BlackMontague Metal Products Wv-286-Sb Mermaid Weathervane 32" Black $81.93 Accentua Teton 20 in. x 20 in. x 26 in. Composite Vinyl Cupola with Copper RoofAccentua Teton 20 in. x 20 in. x 26 in. Composite Vinyl Cupola with Copper Roof $390.50
Whitehall Golf Thermometer French BronzeWhitehall Golf Thermometer French Bronze $45.99 Whitehall 24" Pheasant Weathervane with Mount Ships Same Day & Free with MountWhitehall 24" Pheasant Weathervane with Mount Ships Same Day & Free with Mount $49.50
Montague Metal Products 32-Inch Deluxe Weathervane with Satin Black Rooster O.Montague Metal Products 32-Inch Deluxe Weathervane with Satin Black Rooster O. $70.71 Trending at $76.99 Good Directions Polished Copper Rain Chain Basin 479PGood Directions Polished Copper Rain Chain Basin 479P $70.99
Good Directions Victoria Polished Copper Rooftop Finial 742-3Good Directions Victoria Polished Copper Rooftop Finial 742-3 $149.49 to $252.49 Handcrafted 3- Dimensional Racing Horse Weathervane Copper Patina FinishHandcrafted 3- Dimensional Racing Horse Weathervane Copper Patina Finish $143.99 Was: Previous Price $159.99
30 in. Eagle Weathervane with Globes30 in. Eagle Weathervane with Globes $78.19 401alcc adjustable aluminum garden weathervane roof mount401alcc adjustable aluminum garden weathervane roof mount $36.13
Good Directions Wine Bottle Weathervane-Polished 15"L x 15"H x 4"W WeathervaneGood Directions Wine Bottle Weathervane-Polished 15"L x 15"H x 4"W Weathervane $282.58 Ambient Weather Ba212 Wall Mounted Weather Station with Thermometer Hygromete.Ambient Weather Ba212 Wall Mounted Weather Station with Thermometer Hygromete. $29.13
Lily's Home 11 inch Galileo Thermometer with Etched Glass Globe Barometer NewLily's Home 11 inch Galileo Thermometer with Etched Glass Globe Barometer New $35.69 Good Directions 2122M Wood Manchester Louvered Cupola with Hip Style Copper RooGood Directions 2122M Wood Manchester Louvered Cupola with Hip Style Copper Roo $517.65
Metal 33" Weathervane Filigree Rooster ArrowMetal 33" Weathervane Filigree Rooster Arrow $29.99 Good Directions 27" Fleur-de-Lis Polished Copper Rooftop Finial 739Good Directions 27" Fleur-de-Lis Polished Copper Rooftop Finial 739 $258.99
Flying Witch and Cat on Broom Weathervane - Halloween - with Choice of MountFlying Witch and Cat on Broom Weathervane - Halloween - with Choice of Mount $59.95 Good Directions Large Steel Roof Mount for Weathervanes 401LgGood Directions Large Steel Roof Mount for Weathervanes 401Lg $40.99
New! Good Directions Rooftop Collection Copper Brass Weathervane Galloping HorseNew! Good Directions Rooftop Collection Copper Brass Weathervane Galloping Horse $239.99 Good Directions 693P Shotgun Weathervane Polished CopperGood Directions 693P Shotgun Weathervane Polished Copper $293.94
Santa with Sleigh Weathervane - Santas Christmas Vane - w/ Choice of MountSanta with Sleigh Weathervane - Santas Christmas Vane - w/ Choice of Mount $59.95 6' green glass ball for lightening rod or weathervanes,no caps.6' green glass ball for lightening rod or weathervanes,no caps. $42.50
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ll Aluminum Pinecone Suet Feeder 30056Whiteha 00006000 ll Aluminum Pinecone Suet Feeder 30056 $29.99 Montague Metal Products 32-Inch Weathervane with Swedish Iron Rooster OrnamentMontague Metal Products 32-Inch Weathervane with Swedish Iron Rooster Ornament $76.56
sailboat cottage weathervane with roof mount, pure coppersailboat cottage weathervane with roof mount, pure copper $139.76 Copper Unique Large Trophy Fish Weathervane,fish directionals,no mountCopper Unique Large Trophy Fish Weathervane,fish directionals,no mount $575.00
Beautiful unique 36' Flying Duck Copper Weathervane, Complete/ mount,Ships FastBeautiful unique 36' Flying Duck Copper Weathervane, Complete/ mount,Ships Fast $725.00 Good Directions Motorcycle Garden Weathervane 8846PgGood Directions Motorcycle Garden Weathervane 8846Pg $149.49
New Wall Mount Illuminator Solar Powered House Address Sign Lamp Light OutdoorNew Wall Mount Illuminator Solar Powered House Address Sign Lamp Light Outdoor $46.27 Imax-15004-Ashton Deer WeathervaneImax-15004-Ashton Deer Weathervane $180.57
Good Directions 4 Sided Weathervane Roof Mount 404Good Directions 4 Sided Weathervane Roof Mount 404 $38.49 Ivy Lane Design Transparent Glass Vases, 3.5-Inch, Smoke, 5-PackIvy Lane Design Transparent Glass Vases, 3.5-Inch, Smoke, 5-Pack $29.51
404 4-sided weathervane roof mount404 4-sided weathervane roof mount $40.50 Imax-84839-Crow WeathervaneImax-84839-Crow Weathervane $40.34
4.5' Green Glass Ball for weathervane Or Lightening Rods4.5' Green Glass Ball for weathervane Or Lightening Rods $45.95 Good Directions 11" Steel Weathervane Rod Extension 301 11Good Directions 11" Steel Weathervane Rod Extension 301 11 $25.49
Good Directions American Flag Weathervane - Polished Copper 667P Weathervane NewGood Directions American Flag Weathervane - Polished Copper 667P Weathervane New $225.54 Montague Metal Products Inc. Deluxe Eagle WeathervaneMontague Metal Products Inc. Deluxe Eagle Weathervane $62.86 to $152.61 List price: Previous Price $127.00
flagpole eagle, 12-inch, goldflagpole eagle, 12-inch, gold $62.36 Trending at $64.03 Beautiful Eagle/Flag weathervane, Complete Setup + mountBeautiful Eagle/Flag weathervane, Complete Setup + mount $415.00
715 morgana finial, 53-inch, copper715 morgana finial, 53-inch, copper $456.73 Montague Metal Products 32-Inch Deluxe Weathervane with Gold Whale OrnamentMontague Metal Products 32-Inch Deluxe Weathervane with Gold Whale Ornament $93.19
Good Directions Witch Garden Weathervane 8849PgGood Directions Witch Garden Weathervane 8849Pg $149.49 Good Directions Biplane Garden Weathervane 8812PgGood Directions Biplane Garden Weathervane 8812Pg $136.49
Unique antique finish Copper sloop weathervane complete/mount,brass directionalsUnique antique finish Copper sloop weathervane complete/mount,brass directionals $345.00 Copper Ball Large 6'quality antigue finish for weathervanes Or Lightening RodsCopper Ball Large 6'quality antigue finish for weathervanes Or Lightening Rods $58.95
Montague Metal Products Lt-1-Ab - Turtle Sundial - Aged BronzeMontague Metal Products Lt-1-Ab - Turtle Sundial - Aged Bronze $38.08 Beautiful 36' vinyl window Cupola and copper weathervane setup as shownBeautiful 36' vinyl window Cupola and copper weathervane setup as shown $1,785.00
Whitehall Products Rooster Accent Weathervane 24-Inch BlackWhitehall Products Rooster Accent Weathervane 24-Inch Black $35.50 Beautiful unique Lamb Copper Weathervane, Complete Setup / mount,Ships Fast !Beautiful unique Lamb Copper Weathervane, Complete Setup / mount,Ships Fast ! $485.00
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Prices current as of last update, 11/17/17 2:48am.

See also...
Copper Weathervane, Weathervanes, Garden Décor

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