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5 December 2013 11:26 am ,
Vol. 342 ,
An animal rights group known as the Nonhuman Rights Project filed lawsuits in three New York courts this week in an...
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
Researchers have sequenced and analyzed the first two snake genomes, which represent two evolutionary extremes. The...
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
- 5 December 2013 11:26 am , Vol. 342 , #6163
- About Us
His Discoveries Made a Splash
21 July 1998 7:00 pm
Today is the birthday of Thomas Charles Hope, a Scottish chemist born in 1766. Although he considered himself a teacher, Hope is remembered for two original contributions to chemistry. Hope calibrated a phenomenon--the strange expansion and contraction of water as it changes temperature--that had been anecdotally observed since the 17th century, but which drew skepticism even from top chemists such as Robert Hooke and John Dalton. In experiments published in 1805, Hope measured the temperature of water's maximum density at 39.1 degrees Fahrenheit; the accepted modern value is 39.2 degrees Fahrenheit. Hope is also credited with being the first to identify the element strontium.
[Source: Trevor I. Williams, Ed., A Biographical Dictionary of Scientists (John Wiley & Sons, 3rd ed., New York, 1982).]