Astronomy
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What's the Latest Development? A new analysis of data gathered by N.A.S.A.'s Mars Phoenix Lander suggests the Red Planet's soil may be hospitable to life after all, contrary to previous thinking that it was too full of oxidizing compounds. "Phoenix made the pH and various other discoveries using its onboard wet chemistry laboratory (W.C.L.). The lander scooped Martian dirt into cups of water brought from Earth, and the W.C.L. instrument analyzed the resulting solution." In the 1970s, organic compounds which were dropped onto the Martian soil seemed to decompose.
Mars' Soil Suitable for Life
What's the Latest Development? Australian physicists say they have experimentally disproved the hypothesis that gravity is a force resulting from other traditional forces, a view put forth in 2010 by Dutch physicist Erik Verlinde. Since the two different views disagreed about how gravity would affect the quantum world, an experiment could be run. "As it happens, physicists have been measuring the force of gravity on neutrons for ten yeas or so. And...wait for the drum roll... the results exactly match the predictions of traditional gravitational theory, said University of Australia physicist Archil Kobakhidze."
What Kind of Force Is Gravity?
Dynamisches Periodensystem
Sehr gute Seite, um sich mit dem Periodensystem vertraut zu machen. by Jun 29