Word: tracers
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James Christian remembers the night a few years ago when he and his wife took a Scottish travel agent camping on their land in Kenya's Laikipia Plateau. As they sat under a starry African sky, the hill opposite them suddenly erupted with gunfire and loud booms. "Red tracer fire opened up, and there were these massive explosions - all of this was opposite us enjoying our African-wilderness experience," Christian says...
These scientists aren't the first to look at the chemistry of foraminifera; the fossils are abundant in ancient ocean sediments, so they're a particularly good tracer of the past. But they used a new technique to measure CO2: looking at how much of the element boron was present in the foraminifera's shells. When there's lots of CO2 in the air, there's also more in the top layers of seawater, where the relevant species of foraminifera live. That makes the water more acidic, which in turn makes the tiny animals incorporate less boron into their shells...
While much of Assistant Professor of Geochemistry Sujoy Mukhopadhyay’s work might seem rather esoteric—he uses noble gasses as geochemical tracers to study the Earth’s processes and history—his research findings may help scientists understand everything from global warming to desertification in Africa. Colleagues say that Mukhopadhyay is not the type to focus on one specific interest or area of research. Instead, he uses noble gasses—a group of inert, unreactive elements—as a tool to study a variety of geologic processes...
...Army contends that it has cornered the LTTE in a shrinking patch of territory around Mullativu on the northeastern coast. With this attack - using a do-it-yourself plane and a couple of bombs - the whole city was plunged into darkness (the power was cut) and fear, as tracer bullets and anti-aircraft fire punctured the sky. With two planes down, this might be the last sortie from the Tamil Eelam Air Force; but it may be the beginning of a new phase of guerrilla warfare in Colombo...
...friend and more down-to-earth counterpoint is Nathan Baker-Trinity, a 31-year-old Lutheran pastor and FTE fellow who shuttles a red Mercury Tracer between two yoked churches near the White Earth Indian Reservation. His answer to the pastor shortage is simply to commit to the countryside (he grew up in rural Iowa). "I was like, 'Why wouldn't you go to a rural area?'" he says. Baker-Trinity is an indefatigable local booster. "They're talking about making my whole town wireless!" he says enthusiastically. Equally smitten are his parishioners, like Howard Steinmetz. After decades working...