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Alan Bean, the fourth human to walk on the Moon, one of the first Americans to live aboard a space station, and a man who left space flight behind to devote the second half of his life to painting, died on Saturday in Houston. He was 86.
With Bean's passing, just four living human beings have walked on the Moon: Buzz Aldrin, 88; Dave Scott, 85; Charlie Duke, 82; and Harrison Schmitt, 82. The eight other humans who landed on the Moon in the late 1960s and early 1970s during NASA's Apollo Program have died, as have all of the original seven astronauts in the Mercury space program.
After Bean earned an engineering degree from the University of Texas at Austin, he was commissioned in the US Navy and became first an aviator and later a test pilot. NASA selected him as a member of its third class of astronauts in 1963. Following his astronaut training and a few stints as a back-up crew member, Bean received his assignment as the lunar module pilot for Apollo 12, which would become NASA's second mission the Moon's surface in November, 1969.
The California medical board is threatening to revoke the license of Dr. William Edwin Gray III for selling homeopathic sound files over the Internet that he claims—without evidence or reason—can cure a variety of ailments, including life-threatening infections such as Ebola, SARS, swine flu, malaria, typhoid, and cholera.
In an accusation filed with the state(PDF), the medical board writes that Gray is guilty of gross negligence and requested a hearing in which the board would decide whether to possibly revoke or suspend his license.
In an interview with the Los Angeles Times, Gray said he had decided not to contest the board’s allegations, saying it would cost too much money to fight. He added: “Frankly, I think we'd lose anyway.”
Mass extinctions aren’t fun times. There’s a reason (usually more than one, actually) species disappear in droves. That makes untangling these reasons a challenge. The geological crime scene investigation is tough given that clues can be elusive after millions of years, and the events are complex.
The extinction that wiped out (most of) the dinosaurs, for example, saw both a massive asteroid impact and long-lived volcanic eruptions that covered most of what is now India in lava flows. While the impact would have darkened the sky, bringing permanent winter for a number of years, the volcanoes' injection of greenhouse gases into the atmosphere would have produced a rapid swing in the warming direction when the sky cleared.
The record of that warming in the geologic record isn’t very good, though. The problem has been to find a suitable climate record in rocks that were deposited fast enough to show relatively short time periods in detail. To obtain that sort of record, a team led by the University of Missouri’s Kenneth MacLeod scratched through rocks in Tunisia for crushed up pieces of fossil fish bits.
The new Version 8 of the Apache Wicket open source Java framework embraces Java 8, including types. But use of lambda expressions, the marquee feature of Java 8, is supported only in parts of the framework.
As of Version 8, the server-side, component-oriented Wicket web framework supports Java 8 idioms, with Java 8’s idioms and types applied to the Wicket API. It also has new types to handle dates in Java 8, which can be converted and bound to components.
Whether you go in from above or below, probing the inner workings of our innards is a tricky task. Our intestines are an extensive, inaccessible tangle of tubes, full of dark tucks and turns. But with a new ingestible capsule, researchers hope to shed light on the depths of our perplexing plumbing—quite literally.
The capsule contains living bacteria engineered to sense specific molecular signs of gut troubles and, when those molecules are present, the bacteria glow. The illuminating biological sensors are paired with low-power microelectronics within the pill. This includes photodetectors, a microprocessor, and wireless transmitter. In all, this ingestible micro-bio-electronic device, or IMBED, is designed to painlessly drift through our ductwork, probe for trouble, and relay findings wirelessly in real time as it takes its excursion through our entrails.
“Basically, our vision is that we want to try to illuminate and provide understanding into areas that are not easily accessible,” Timothy Lu, a biological and electrical engineer at MIT, said in a press briefing. Lu and electrical engineer Anantha Chandrakasan (also at MIT) led a team of researchers developing the IMBED.