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According to a 4th-century Chinese historical text, the 1st-century BC Chinese mechanical engineer and craftsman Ding Huan created a lamp with a circular band with images of birds and animals that moved "quite naturally" when the heat of the lamp caused the band to rotate.
A heat lamp is an incandescent light bulb that is used for the principal purpose of creating heat. The spectrum of black-body radiation emitted by the lamp is shifted to produce more infrared light. Many heat lamps include a red filter to minimize the amount of visible light emitted. Heat lamps often include an internal reflector.
Ficus plant grown under a white LED grow light. A grow light is an electric light that can help plants grow. Grow lights either attempt to provide a light spectrum similar to that of the sun, or to provide a spectrum that is more tailored to the needs of the plants being cultivated (typically a varying combination of red and blue light, which generally appears pink to purple to the human eye).
Video of a Drinking Bird. The drinking bird is a heat engine that exploits a temperature difference to convert heat energy to a pressure difference within the device, and performs mechanical work. Like all heat engines, the drinking bird works through a thermodynamic cycle. The initial state of the system is a bird with a wet head oriented ...
The trio were hanging out under what seemed to be a warming lamp. Their owner has nothing to worry about with the orange cat around. "Barn cats are worth their weight in gold," the person praised ...
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Stroboscopic effect may lead to unsafe situations in workplaces with fast moving or rotating machinery. If the frequency of fast rotating machinery or moving parts coincides with the frequency, or multiples of the frequency , of the light modulation, the machinery can appear to be stationary, or to move with another speed, potentially leading ...
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related to: rotating heat lamp for plants images and facts video for cats to watch birdstemu.com has been visited by 1M+ users in the past month
walmart.com has been visited by 1M+ users in the past month