- News Home
6 March 2014 1:04 pm ,
Vol. 343 ,
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
- 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).]