Word: nitrogen
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Still, the bones have more secrets to reveal. They were never fossilized, and a careful analysis of their carbon and nitrogen composition, yet to be performed, should reveal plenty about Kennewick Man's diet. Says Stafford: "We can tell if he ate nothing but plants, predominantly meat or a mixture of the two." The researchers may be able to determine whether he preferred meat or fish. It's even possible that DNA could be extracted and analyzed someday...
...have to diet. Pluto's gravity is so weak that a man weighing 300 lbs. (136 kg) on Earth would weigh just 20 lbs. (9 kg) on Pluto ? Unfortunately, breathing would be impossible. In addition to being intolerably cold, Pluto has a thin?and temporary?atmosphere of nitrogen molecules, with traces of carbon monoxide and methane. When the planet moves farther from the sun, the atmosphere freezes back onto the surface ? Pluto is one of only two planets that rotate on their horizontal axis. Uranus is the other. A day on Pluto is equal to 6.4 days...
...Sanders Theatre, the 15th annual awards ceremony delighted over 1,200 people with strange and interesting humor including a three-part mini opera, entitled “The Count of Infinity” and brief “scientific” demonstrations that included the use of liquid nitrogen and colored balloons...
...RACE, blood levels of nitrogen and protein waste products--and those of potassium, sodium and other substances not normally found there--are rising. Rusch knows too well what that feels like. "You're just in this state of slow deterioration, and you're doing everything you can to buy time," she says. "You can't recover until you stop." Even then, say exercise physiologists, the body doesn't always bounce back completely. Ultra-athletes may be more susceptible to developing arthritis and fractures when they are older, and their muscles may not recover as quickly from tears and bruises. Still...
...some combination of dirty air and polluted water (both surface and sub-surface) with complex consequences for both human and ecosystem health. It was relatively easy to associate cause with effect. Burning coal adds large concentrations of sooty materials to the atmosphere, in addition to gaseous compounds of nitrogen and sulfur oxides and a variety of toxic elements including, for example, mercury. The effluents from coal burning have a demonstrably negative effect on human health. It took a series of air pollution disasters, however, in Donora, Penn., and in London in the late 1940s and early 1950s before public opinion...