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Zaccharias Janssen and his son Hans, two Dutch spectacle makers, invented the fore runner of the microscope in 1590 while experimenting with several lenses they had place in a tube. In 1609, Galileo improved on their design. ... more
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There is no clinical evidence of any adverse effects of light therapy. A small number of users will experience headache, eyestrain, jitteriness or mild stomach discomfort. Usually these symptoms pass after a few exposures. When they do not, the ... more
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People grow in a step-by-step process. If a tree grew to its full height from a seed in one day, it wouldn't have the roots to give it a strong foundation. Receiving light regularly over time encourages that steady, step-by-step growth. ... more
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A. The percentage of light that passes through a glazing material. ... more
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• Open Genius Maker software and click "Refraction of rays" button. It opens the Refraction of light rays window as shown above. • On opening you will see that 2 mediums, namely, air and water are selected by default. • As you move the mouse a ... more
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No need to worry - it has nothing to do with ultraviolet radiation that gives you a sunburn and damages your skin. Solar energy from the sun covers a broad energy band including infrared, visible light, ultra-violet, x-rays and gamma rays. Infrared ... more
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No, you cannot have a sharp or a crimped bend. While rope lighting is flexible to nearly 180 degrees, you must maintain a small radius on your bend. Your max bend should be the shape of a narrow letter U rather that the letter V. ... more
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Hatchlings that crawl toward artificial light sources are following the same instinctive response that leads them seaward on naturally lighted beaches. The apparent brightness and glare of artificial lighting is what often leads hatchlings astray. ... more
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The Early Light Academy will run on a traditional school year and will not have year round track options. There will be a maximum or 3 classrooms per grade with no more than 25 children per classroom (75 students per grade). ... more
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They prefer average to high light, but be sure to avoid the direct afternoon sun in the summer. They will tolerate a little less light, but won't be as lush. How much water do they need? Weeping fig, rubber plants and fiddleleaf figs all like to ... more
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