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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Color Pheasant Weathervane - 32 in.Color Pheasant Weathervane - 32 in. $56.64 List price:  Previous Price $61.85 Good Directions Outdoor Motorcycle Spin Roof-Mount Weathervane- Polished CopperGood Directions Outdoor Motorcycle Spin Roof-Mount Weathervane- Polished Copper $179.99
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Good Directions Outdoor Spinning Rooster Roof-Mount Weathervane- Polished CopperGood Directions Outdoor Spinning Rooster Roof-Mount Weathervane- Polished Copper $129.99 Good Directions Rooster Weathervane, Blue Verde Copper, PatinaGood Directions Rooster Weathervane, Blue Verde Copper, Patina $189.31
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Blue Heron Weathervane 175 in. L x 12 in. H Adjustable Roof Mount Copper GlobesBlue Heron Weathervane 175 in. L x 12 in. H Adjustable Roof Mount Copper Globes $116.75 Deluxe Color Cardinal Weathervane - 32 in.Deluxe Color Cardinal Weathervane - 32 in. $72.27
Lighthouse and Sailboat Weathervane, Sailing - Nautical Vane w/ Choice of MountLighthouse and Sailboat Weathervane, Sailing - Nautical Vane w/ Choice of Mount $59.95 Good Directions Outdoor Running Trotting Horse Garden-Mount Spinning WeathervaneGood Directions Outdoor Running Trotting Horse Garden-Mount Spinning Weathervane 00004000 $129.99
Vtg Grasshopper Weathervane Created and Signed By John WrightVtg Grasshopper Weathervane Created and Signed By John Wright $99.99 Deluxe Color Cottage Lighthouse Weathervane - 32 in.Deluxe Color Cottage Lighthouse Weathervane - 32 in. $75.99
Vintage Tabletop Armadillo Weathervane Copper And Brass 14"Vintage Tabletop Armadillo Weathervane Copper And Brass 14" $52.95 Horse Weathervane Pure Polished Copper Weather Direction Outdoor Farm Home DecorHorse Weathervane Pure Polished Copper Weather Direction Outdoor Farm Home Decor $317.91
Good Directions Great Blue Heron Roof-Mount Weathervane- Patina-Finished CopperGood Directions Great Blue Heron Roof-Mount Weathervane- Patina-Finished Copper $289.99 Good Directions American Eagle Bird Roof-Mount Weathervane- Polished CopperGood Directions American Eagle Bird Roof-Mount Weathervane- Polished Copper $259.99
Good Directions Outdoor Pineapple Garden Roof-Mount Weathervane- Polished CopperGood Directions Outdoor Pineapple Garden Roof-Mount Weathervane- Polished Copper $319.99 Good Directions Vintage Motorcycle Roof-Mount Weathervane 31" Polished CopperGood Directions Vintage Motorcycle Roof-Mount Weathervane 31" Polished Copper $519.99
Stainless Steel Weathervane Roof Eave Mount,Universally Fits Standard 3/4'' RodStainless Steel Weathervane Roof Eave Mount,Universally Fits Standard 3/4'' Rod $59.99 Hand Fabricated Copper Locomotive WeathervaneHand Fabricated Copper Locomotive Weathervane $5,500.00
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Good Directions Outdoor Retriever Garden Roof-Mount Weathervane- Polished CopperGood Directions Outdoor Retriever Garden Roof-Mount Weathervane- Polished Copper $379.99 Good Directions Stained Glass Moon Roof-Mount Spin Weathervane Polished CopperGood Directions Stained Glass Moon Roof-Mount Spin Weathervane Polished Copper $379.99
Black 18.75-in Aluminum Rust Resistant Cast Bell with Sailboat Ornament DecorBlack 18.75-in Aluminum Rust Resistant Cast Bell with Sailboat Ornament Decor $128.99 Good Directions Horse Copper Hanging Wall Sculpture - Traditional Home DecorGood Directions Horse Copper Hanging Wall Sculpture - Traditional Home Decor $340.65
Good Directions Outdoor Lighthouse Spin Roof-Mount Weathervane- Polished CopperGood Directions Outdoor Lighthouse Spin Roof-Mount Weathervane- Polished Copper $339.99 Good Directions Outdoor Rooster Roof-Mount Weathervane - 27in.- Polished CopperGood Directions Outdoor Rooster Roof-Mount Weathervane - 27in.- Polished Copper $269.99
Roof-Mount Weathervane- Bantam Rooster- Polished CopperRoof-Mount Weathervane- Bantam Rooster- Polished Copper $159.99 Beautiful copper And Brass Sailboat On Arrow weathervane, Complete Setup + mountBeautiful copper And Brass Sailboat On Arrow weathervane, Complete Setup + mount $575.00
Whitehall Halloween Bat Garden Weathervane, BlackWhitehall Halloween Bat Garden Weathervane, Black $47.14 List price:  Previous Price $49.99 Color Cow Weathervane - 32 in.Color Cow Weathervane - 32 in. $63.99
Good Directions Wine Bottle With Glasses Roof-Mount Weathervane- Polished CopperGood Directions Wine Bottle With Glasses Roof-Mount Weathervane- Polished Copper $159.99 Beautiful large Arrow Copper Weathervane,sold as shownBeautiful large Arrow Copper Weathervane,sold as shown $485.00
Rooster Weather VaneRooster Weather Vane $100.00 Good Directions 467P Gutter Clip for Rain ChainGood Directions 467P Gutter Clip for Rain Chain $17.71
Vintage 1974 Whitehall 24″ Country Doctor WeathervaneVintage 1974 Whitehall 24″ Country Doctor Weathervane $29.99 Weathervane 1/2'' Brass Retaining hook For Standard 1/2'' top rod,high qualityWeathervane 1/2'' Brass Retaining hook For Standard 1/2'' top rod,high quality $21.99
Deluxe Gold Full Bodied Eagle Weathervane - 32 in.Deluxe Gold Full Bodied Eagle Weathervane - 32 in. $70.74 Horse Weathervane - 24 in.Horse Weathervane - 24 in. $31.99 List price:  Previous Price $38.00
Deluxe Color Sailboat Weathervane - 32 in.Deluxe Color Sailboat Weathervane - 32 in. $70.53 Hummingbird Cottage Weathervane Pure Copper Roof Mount Backyard Garden Décor -Hummingbird Cottage Weathervane Pure Copper Roof Mount Backyard Garden Décor - $128.19
Large Handcrafted 3D 3-Dimensional Sailboat Weathervane Copper Patina FinishLarge Handcrafted 3D 3-Dimensional Sailboat Weathervane Copper Patina Finish $135.99 Was:  Previous Price $169.99 Good Directions Outdoor Décor Victorian Arrow Spear Garden-Mount WeathervaneGood Directions Outdoor Décor Victorian Arrow Spear Garden-Mount Weathervane $149.99
Retriever Weathervane - 24 in.Retriever Weathervane - 24 in. $33.99 List price:  Previous Price $35.99 Horse Weathervane Decor Running Wooden Vintage Rustic Farmhouse GHorse Weathervane Decor Running Wooden Vintage Rustic Farmhouse G $14.99 Was:  Previous Price $19.99
Quality Weathervane 5'' Eave Mount For Full Size Weathervanes Fits 3/4'' RodsQuality Weathervane 5'' Eave Mount For Full Size Weathervanes Fits 3/4'' Rods $44.95 Black 16.75-in Aluminum Cast Bell with Pheasant Ornament Outdoor Wall DecorBlack 16.75-in Aluminum Cast Bell with Pheasant Ornament Outdoor Wall Decor $123.99
Black 10-in x 10-in Aluminum Cast Bell with Llama Ornament Outdoor Wall DecorBlack 10-in x 10-in Aluminum Cast Bell with Llama Ornament Outdoor Wall Decor $108.99 Deluxe Swedish Iron Full Bodied Eagle Weathervane - 32 in.Deluxe Swedish Iron Full Bodied Eagle Weathervane - 32 in. $70.74
Color Rooster Weathervane - 32 in.Color Rooster Weathervane - 32 in. $62.99 Flagpole Topper Decorative Bronze Gold Eagle Finial Globe Outdoor Large 18 inchFlagpole Topper Decorative Bronze Gold Eagle Finial Globe Outdoor Large 18 inch $70.70
Weather Vane Horse Rooster 5 Feet Tall Black Garden mount Yard DecorWeather Vane Horse Rooster 5 Feet Tall Black Garden mount Yard Decor $24.50 Copper Eagle Weathervane Weather Vane Full Body with Roof Mounting Hardware NewCopper Eagle Weathervane Weather Vane Full Body with Roof Mounting Hardware New $118.99 List price:  Previous Price $208.23
Weathervane Mount, Fits 3/8''rod for cottage or medium copper weathervanesWeathervane Mount, Fits 3/8''rod for cottage or medium copper weathervanes $29.99 Deluxe Color Buck Weathervane - 32 in.Deluxe Color Buck Weathervane - 32 in. $70.53
Whitehall Flying Witch Garden Weathervane, BlackWhitehall Flying Witch Garden Weathervane, Black $44.99 List price:  Previous Price $49.99 Good Directions Outdoor Décor Bald Eagle Bird Garden-Mount Spinning WeathervaneGood Directions Outdoor Décor Bald Eagle Bird Garden-Mount Spinning Weathervane $189.99
48 in Metal Weather Vane / Wind Wheel Garden Stake with Rooster Ornament48 in Metal Weather Vane / Wind Wheel Garden Stake with Rooster Ornament $2.99 Good Directions Horse Weathervane, Polished CopperGood Directions Horse Weathervane, Polished Copper $577.95
Good Directions Outdoor Biplane Airplane Roof-Mount Weathervane- Polished CopperGood Directions Outdoor Biplane Airplane Roof-Mount Weathervane- Polished Copper $319.99 Weather Vane, Irish themeWeather Vane, Irish theme $29.99
Bucking Bronco Horse & Rider / Cowboy Weather vaneBucking Bronco Horse & Rider / Cowboy Weather vane $400.00 Rust Resistant Black 19-in Aluminum Cast Bell with Elk Ornament Wall DecorRust Resistant Black 19-in Aluminum Cast Bell with Elk Ornament Wall Decor $123.99
Country Dr Weathervane - 24 in.Country Dr Weathervane - 24 in. $33.99 Weathervane Galloping Horse 33 in. x 24 in. x 15 in. Roof Mount Pure CopperWeathervane Galloping Horse 33 in. x 24 in. x 15 in. Roof Mount Pure Copper $167.55
Good Directions Outdoor Angel Gabriel Trumpets Garden-Mount Spinning WeathervaneGood Directions Outdoor Angel Gabriel Trumpets Garden-Mount Spinning Weathervane $139.99 Good Directions Horse Cottage Weathervane - Blue Verde Copper with Roof MountGood Directions Horse Cottage Weathervane - Blue Verde Copper with Roof Mount $116.52
4.5'' and 6.5'' Green Glass Balls for weathervanes Or Lightening Rods4.5'' and 6.5'' Green Glass Balls for weathervanes Or Lightening Rods $84.95 4 Ft Galvanized Farmhouse Rooster Weather Vane Windmill Trellis Wind Spinner4 Ft Galvanized Farmhouse Rooster Weather Vane Windmill Trellis Wind Spinner $39.95
Good Directions Outdoor Décor Fish Bass w/Bait Garden-Mount Spinning WeathervaneGood Directions Outdoor Décor Fish Bass w/Bait Garden-Mount Spinning Weathervane $139.99 Good Directions Outdoor Sailboat Boat Garden-Mount Spinning Metal WeathervaneGood Directions Outdoor Sailboat Boat Garden-Mount Spinning Metal Weathervane $139.99
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Prices current as of last update, 07/07/19 3:44pm.

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

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