Time travel

Sorry, science-fiction fans: Time travel is impossible.  That is the sobering conclusion, anyway, of a Hong Kong-based team of physicists.  They found that the maximum speed of a single photon, the basic unit of light, “obeys the traffic law of the universe,” Agence France-Presse reports.  The photon cannot go faster than the speed of light—186,282 miles per second—and thus provides […]

Read more

Personalized Diets

Personalized Diets

For years the Federal Dietary Guidelines have handed out a blueprint to Americans for good nutrition.  As it turns out this may not be a good outline for all Americans.  People are different in all respects; even identical twins have different ways they respond to food. People have been told to follow the same diet as the next person. Now […]

Read more

Killed by overtime

The eight-hour work day is becoming obsolete, as companies pressure employees for “productivity”—that is, long work days. But employees ‘may pay the ultimate price for overworking, a new British study finds. Researchers followed more than 7,000 healthy, middle-aged U.K. government employees for roughly 12 years and discovered that those who reported clocking 11-hour days had a 67 percent higher risk […]

Read more
1 2 3 4 455