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27 November 2013 12:59 pm ,
Vol. 342 ,
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...
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...
Featuring the first lunar rover in 40 years, Chang'e-3 is seen as an important milestone on China's quest to send a...
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...
- 27 November 2013 12:59 pm , Vol. 342 , #6162
- About Us
Getting a Charge Out of Liquids
14 October 1997 8:30 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.]