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1 lux < 1 lux: Extreme of darkest storm clouds, sunset or sunrise 10 1: 1 decalux: 40 lux: Fully overcast, sunset or sunrise 10 2: 1 hectolux < 200 lux: Extreme of darkest storm clouds, midday 400 lux: Sunrise or sunset on a clear day (ambient illumination) 10 4: 10 kilolux: 10–25 kilolux: Typical overcast day, midday 20 kilolux
Above about 10,000 lux or ~100 watts/square meter the rate no longer increases. Thus, most plants can only use ~10% of full mid-day sunlight intensity. [6] This dramatically reduces average achieved photosynthetic efficiency in fields compared to peak laboratory results.
In SI units illuminance is measured in lux (lx), or equivalently in lumens per square metre (lm·m −2). [2] Luminous exitance is measured in lm·m −2 only, not lux. [4] In the CGS system, the unit of illuminance is the phot, which is equal to 10 000 lux. The foot-candle is a non-metric unit of illuminance that is used in photography. [5]
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A former FBI informant accused of lying about President Joe Biden and his son Hunter Biden’s alleged business dealings with a Ukrainian energy company has agreed to plead guilty to federal ...
The Large Underground Xenon experiment (LUX) aimed to directly detect weakly interacting massive particle (WIMP) dark matter interactions with ordinary matter on Earth. . Despite the wealth of (gravitational) evidence supporting the existence of non-baryonic dark matter in the Universe, [1] dark matter particles in our galaxy have never been directly detected in an expe
These birds stand anywhere from 3.5 to 4.3 feet and can weigh anywhere from 50-90 pounds. You can tell them apart from other penguins by their distinct black and white plumage.
Cargill, the megasized Minnesota-based food production giant, is laying off about 5% of its global workforce as food commodity prices drop. Cargill is America’s largest privately held company ...