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Radiometers & Barometers Sun and Wind WeatherballReady to Ship in 2-3 DaysThis Weatherball is fun, functional, and educational. Makes an attractive accessory for any home or office. The weatherball quickly indicates any changes in atmospheric pressure. The air trapped by the liquid maintains a stead pressure. When high pressure and good weather are approaching, the liquid is pushed down the spout. When low pressure and bad weather is approaching, pressure trapped inside the weatherball causes the spout to rise. It liquid spills out of the top you should take cover!
 2.5 Inch Colored Glass Hanging RadiometersReady to Ship in 1-2 daysThe radiometer, also known as a light windmill, demonstrates the scientific principle of converting light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. It will not spin under fluorescent lights. These radiometers are truly one of a kind. 3 Inch Hanging RadiometersReady to Ship in 1-2 days80mm Glass Hanging Colored Radiometer The radiometer, also known as a light windmill, demonstrates scientific principle of converting light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. They will not spin using fluorescent lights. These radiometers are truly one of a kind.  3 Inch Hanging Oval RadiometersReady to Ship in 1-2 daysThe radiometer, also known as a light windmill, demonstrates the scientific principle of converting light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. It will not spin under fluorescent lights. These radiometers are truly one of a kind. Oval measures 3" diameter.  Colored 2.5 Inch Glass Sphere RadiometerReady to Ship in 1-2 days60mm ( 2.5") Glass Radiometer The radiometer, also known as a light windmill, demonstrates scientific principle of converting light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. They will not spin using fluorescent lights. These radiometers are truly one of a kind. This radiometer stands 7" tall and has a 2.5" diameter sphere.  Standing 2.5 Inch Radiometer with Colored Glass StemReady to Ship in 1-2 daysGlass Radiometer The radiometer, also known as a light windmill, demonstrates the scientific principle of converting light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. They will not spin using fluorescent lights. These radiometers are truly one of a kind. This radiometer stand 7" tall and has a 2.5" diameter sphere. 4 Inch Hanging RadiometersReady to Ship in 1-2 days100mm Glass Hanging Colored Radiometer The radiometer, also known as a light windmill, demonstrates scientific principle of converting light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. They will not spin using fluorescent lights. These radiometers are truly one of a kind.  Weather Thermometer and Hygrometer with Oak FinishReady to Ship in 1-2 daysThis solid oak weather station displays temperature and humidity. At the top of the weather station one side displays temperature in fahrenheit and one side displays relative humidity. The weather glass barometer will help you to determine the weather. Water moving up the spout means low pressure with potentially stormy conditions while high pressure pushes the water down to the bottom of the spout and let's you know that pleasant weather is on the way. Colored Glass 3 Inch Sphere RadiometerReady to Ship in 1-2 days80mm (3") Glass Radiometer The radiometer, also known as a light windmill, demonstrates scientific principle of converting light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. They will not spin using fluorescent lights. These radiometers are truly one of a kind. This radiometer stands 10" tall and has a 3" diameter sphere. 3 Inch Glass Radiometer with Colored Glass StemReady to Ship in 1-2 daysThe radiometer, also known as a light windmill, demonstrates the scientific principle of converting light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. It will not spin under fluorescent lights. These radiometers are truly one of a kind. Sphere measures 3" in diameter.  10 Inch Radiometer with Braided Glass StemReady to Ship in 1-2 daysThe radiometer, also known as a light windmill, demonstrates the scientific principle of converting light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. It will not spin under fluorescent lights. This radiometer is a great gift, with it's braided glass stem and colored 3" glass sphere.  Einstein Handpainted Glass RadiometerReady to Ship in 1-2 days80mm Glass Radiometer The radiometer, also known as a light windmill, demonstrates the scientific principle of converting light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. They will not spin using fluorescent lights. These radiometers are truly one of a kind.  Radiometer with Color Glass Braided StemReady to Ship in 1-2 days10" Glass Radiometer - 90mm The radiometer, also known as a light windmill, demonstrates the scientific principle of converting light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. They will not spin using fluorescent lights. These radiometers are truly one of a kind. This radiometer stand 10" tall and has a 3" diameter sphere. |
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