A lumen is a measure of the total quantity of visible light emitted by a light source. Generally the higher lumens the better illumination.
To light a surface of one square meter evenly at a 1 lux requires one lumen of total light. Since the area of a sphere one meter in radius is 4pi square meters, the total light output of a candle is 4pi (about 12.6) lumens. So a candle is a little dimmer than a one watt light...
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The predisposition to faith – the superinfused light of faith (lumen fidei infusum)– substitutes the natural human disposition known as the intellectus principiorum –the ability to intuitively grasp the first principles of cognition, a primary metaphysical principle characteristic of scientia maxime ...
What is a lumen? Lumens refer to the total amount of visible light a device produces. A higher lumens value means there is a larger area that is lit. Say the candle that we just saw above at 1 cd shines in all directions - 360 degrees. It would give off 12.57 lumens (lm). That’...
01 光是什么 What is Light? 光,使我们看到周围的世界。我们通过对光的感知来收集物理世界的第一手信息,并观察它们的变化。从这个角度来说,光的这种承载与传递信息的能力,也许就是它最重要也最显著的特征。 眼见为实 视觉帮助我们找到自己在周围环境中的位置,同时也帮助我们定义外部事物,为我们构建出一幅真实的...
WHAT'S GOOD FOR THE GOOSE IS NOT GOOD FOR THE GANDER: SARBANES-OXLEY-STYLE NONPROFIT REFORMS. The article contends that state reforms, particularly the costly disclosure requirements, will be of little value in the effort to improve non-profit gover... Mulligan,N Lumen - 《Michigan Law Revie...
Lumen A unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions Lumen A cavity or passage in a tubular organ; The lumen of the intestine Common Curiosities What is a ...
外部播放此歌曲> Lumen - What It Is 专辑:Infomania 歌手:Lumen 还没有歌词哦
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