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The Suess cycle, or de Vries cycle, is a cycle present in radiocarbon proxies of solar activity with a period of about 210 years. It was named after Hans Eduard Suess and Hessel de Vries . [48] Despite calculated radioisotope production rates being well correlated with the 400-year sunspot record, there is little evidence of the Suess cycle in ...
TS-1000 LED Grow Light. "These are quite a bit stronger—they're 150 watt LED grow lights, full spectrum, and they're a different profile," Eierman says. "Instead of giving a rectangular light ...
Etsy. Etsy, Inc. is an American e-commerce company with an emphasis on the selling of handmade or vintage items and craft supplies. These items fall under a wide range of categories, including jewelry, bags, clothing, home décor, religious items and furniture, toys, art, as well as craft supplies and tools. Items described as vintage must be ...
Mike Segar / Reuters. Online marketplace Etsy has unveiled a new purchase protection program designed to safeguard both buyers and sellers. Right now, you have limited options if something else ...
The photosynthetic efficiency is the fraction of light energy converted into chemical energy during photosynthesis in green plants and algae. Photosynthesis can be described by the simplified chemical reaction. 6 H 2 O + 6 CO 2 + energy → C 6 H 12 O 6 + 6 O 2. where C 6 H 12 O 6 is glucose (which is subsequently transformed into other sugars ...
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