14-11-20 Why is Jamaica, with a population smaller than that of Los Angeles, home to so many of the world's elite sprinters -- runners who compete in the 100, 200, 400 and 800-meter races? Robert Trivers, an evolutionary biologist and professor of anthropolo...

10-05-25 Why is there matter in the universe and not antimatter（反物质） , its opposite? Physicists at Fermi National Accelerator Laboratory, including John Ellison, a professor of physics at UC Riverside, have announced that they have found evidence for a...