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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
- About Us
13 May 1999 7:30 pm
The discoverer of Earth's inner core, Danish geophysicist Inge Lehman, was born on this day in 1888. After studying the shock waves from earthquakes recorded on seismographs, Lehman proposed that Earth has a smaller, solid inner core. She published this theory in 1936 under the title "P", for the three types of waves generated by Pacific temblors. Within a few years, work by others confirmed her hypothesis. Lehman later was the founder and first president of the European Seismological Federation.
[Source: Emily McMurray, Ed., Notable Twentieth Century Scientists (Gale Research Inc., ITP, 1995).]