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[快消/零售/贸易] you’ll be reminded that sunlight is made up of millions of photons [推广有奖]

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楼主
kjisjejh 发表于 2011-8-13 18:22:43 |AI写论文

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Advantages of LED Grow Light Systems

Hydroponics is a branch of plant physiology where plants are grown without the use of soils but use mineral nutrient solutions. In this system, lights are used to help the plant photosynthesize. As you might know already, light as in sunlight, is essential for plants to thrive and grow. So what happens to plants that are grown indoors where natural sunlight is not available? Some form of artificial lighting has to be  ojwer-iken  supplied such as incandescent or fluorescent lighting. One method of lighting that has gained popularity for growing plants indoors is the use of LEDs.

Unlike the normal incandescent bulb that is still so popular, an LED has no filament. An LED or Light-Emitting-Diode is a semiconductor diode that produces light when electricity is   led panel light  passed through its LED circuit. A diode usually has two terminals and allows current to pass unidirectional only. The light produced is a narrow spectrum light, more like electroluminescence hence it isn’t very coherent.

If you brush up your knowledge of physics and chemistry, you’ll be reminded that sunlight is made up of millions of photons, a unit of light. Sunlight is produced when these photons, contained by the atoms, move around or change electron positions. A continuous process produces sunlight. However  sagug_y , LED lamps work with the help of electricity that flows unidirectional. This one-way flow of the current prompts a change of movement of the electrons, where the positively-charged electrons move away from the negatively-charged ones. The electrons leave gaps in its chain, which become the positively charged points on the semiconductor. This movement of electricity over the semiconductor, from negative areas to the gaps on its surface, helps emit light.

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关键词:Millions Million PHOTON remind Light available essential lighting supplied already

沙发
Johnnycz 发表于 2011-8-13 19:01:16
出现全英文啦   
Yes would always bring something good.

藤椅
amanwaplan 发表于 2011-11-8 06:52:23
Very interesting.. !

板凳
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