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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
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.]