Word: chemistic
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That raised an obvious question. Could these compounds have resulted from earthly contamination of the meteorite during its long Antarctic layover? Not likely, says Richard Zare, a Stanford University chemist who developed and used the analyzer that detected the PAHS and other meteoric hydrocarbons. The researchers performed a "depth profile" on the meteorite, and although no pahs were found on its crust, they were found inside the rock. Had any of Earth's abundant PAHS seeped in, says Zare, he would have expected to find more contamination on the outside than in the interior...
...easier if microscopic chemical agents called taggants were present at the scene. Taggants are like fingerprints or bar codes. Mixed with gunpowder and other explosive agents, they can identify the manufacturer, the point of sale or theft, and provide other useful information. They were invented by a Minnesota chemist in 1973 and for the past 11 years their mandatory use in Switzerland has helped Swiss police solve more than 500 explosives cases. But adding taggants to black and smokeless gunpowder in the U.S.--the materials common in many unsophisticated bombs--is still prohibited...
...University of Pennsylvania Museum and more or less forgotten. But when museum researcher Peter McGovern became fascinated by the origins of wine more than two decades later, the ancient stoneware suddenly looked a lot more interesting. It had a yellowish residue on the bottom, and McGovern, an archaeologist and chemist, decided to check...
Students became soldiers. Chemists and engineers worked for the government, developing new munitions and sophisticated radar systems. President James B. Conant '14, a brilliant chemist himself, was a major player in the development of the atomic bomb at Los Alamos, New Mexico...
...smokers and abstainers and found that smokers had 40% less of a brain enzyme known as monoamine oxidase B, or MAO B. The enzyme breaks down dopamine, a chemical messenger in the brain associated with feelings of pleasure. Because of its exquisitely satisfying effects, says Joanna Fowler, a chemist at Brookhaven National Laboratory and one of the study's authors, "dopamine is crucially important in reinforcing and motivating behavior...