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17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
- About Us
Instrumental to Many's Success
10 April 1997 8:00 pm
Today is the 97th birthday of American inventor and chemist Arnold Beckman. Asked by California growers to find a way to measure the acidity of lemon juice, Beckman, a young researcher at the California Institute of Technology, built the first pH meter in the mid-1920s, using a vacuum tube sensitive to electrical currents. A decade later, he established Beckman Instruments Inc. to mass-produce pH meters; the company today produces a range of scientific instruments and research products.
In 1940, Beckman developed the quartz spectrophotometer, which analyzes the composition of materials. The new machine provided results in minutes that were 99.9% accurate, revolutionizing the field of analytical chemistry. Fifteen years ago, he co-founded the Beckman Laser Institute and Medical Clinic in Irvine, California, the town in which he resides. The Arnold and Mabel Beckman foundation has awarded more than $170 million in grants to universities for research.
[Source: Emily McMurray, Ed., Notable Twentieth Century Scientists (Gale Research Inc., ITP, 1995).]