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27 November 2013 12:59 pm ,
Vol. 342 ,
The new head of the National Center for Science Education promises to "fight the good fight" against attacks on...
Analyses of the H7N9 strains isolated from four new cases show that the virus is evolving rapidly, heightening anxiety...
In 2009, Jack Szostak shared a Nobel Prize for his part in discovering the role of telomeres, the end bits of...
Science has exposed a thriving academic black market in China involving shady agencies, corrupt scientists, and...
Paper-selling agencies flourish in the aura of reputable businesses. For some scientists, it may be difficult to tell...
Data collected by satellites and floating probes have chronicled a 2-decade rise in the temperature and thickness of a...
Cholesterol, the artery-clogging molecule that contributes to cardiovascular disease, has another nasty trick up its...
Until recently, the Defense Advanced Research Projects Agency (DARPA) kept its plans for its $70 million portion of the...
- 27 November 2013 12:59 pm , Vol. 342 , #6162
- About Us
Bright Light in Photosynthesis
10 January 1997 8:00 pm
Melvin Calvin, who as a biologist at the Lawrence Berkeley National Laboratory unraveled the secrets of how plants use light for energy, died on 8 January in Berkeley, California. He was 85.
As Calvin told the story, it was on the day the Japanese army surrendered to end World War II that renowned physicist Ernest Lawrence told him, "Now is the time to do something useful with radioactive carbon." Calvin assembled a crack Berkeley team to tackle photosynthesis. His group used carbon-14, discovered at the Berkeley lab in 1940, to trace carbon's route in the plant: from absorption as carbon dioxide to conversion into carbohydrates and other compounds. Calvin's team found that sunlight acts on chlorophyll rather than carbon dioxide.
Calvin earned a bachelor's degree from the Michigan College of Mining and Technology in 1931 and a Ph.D. in chemistry from the University of Minnesota in 1935. He is survived by two daughters, a son, six grandchildren, and two great-grandchildren.