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6 March 2014 1:04 pm ,
Vol. 343 ,
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...
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...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
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Getting a Charge Out of Liquids
14 October 1999 7:00 pm
Friedrich Kohlrausch, a German physicist who did pioneering work on how electricity is transmitted in solutions, was born on this day in 1840. Kohlrausch is best known for a method to measure electrical conductivity using an alternating current, which determined that conductivity is lower in more dilute solutions. Kohlrausch also showed that there are two molecular players involved in conductivity: the cation, or positively charged ion, and the anion, or negatively charged ion.
[Source: Trevor I. Williams, Ed. A Biographical Dictionary of Scientists, Third Edition. John Wiley & Sons. New York. 1982.]