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This is Scientific American's 60-Second Science. I'm John Matson. Got a minute? In a laboratory vault outside Paris is a small cylinder of platinumiridium alloy that serves as the standard for all mass measurements worldwide. By an 1889 international
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Each year, scientists work to develop a unique influenza vaccine to protect people against the strain expected in the coming flu season. Mutations in the virus mean that last year's vaccine probably won't protect against this year's flu variety. Now,
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The White House has expressed confidence that the U.S. Supreme Court will uphold President Barack Obama's landmark health care reform law as constitutional. After the Supreme Court heard the final legal argument on the health care law, a White House
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