Do Stoplights Need A Fourth Color?
Red, yellow and green have been our standard stoplight colors for over a century. But researchers in North Carolina suggest a fourth color could help driverless cars and those steered by humans share the road.
Red, yellow and green have been our standard stoplight colors for over a century. But researchers in North Carolina suggest a fourth color could help driverless cars and those steered by humans share the road.
It’s Spinach Festival weekend in Lenexa, Kansas, a time for games, crafts, music, the world’s largest spinach salad and a visit from noted cartoon spinach addict Popeye the sailor. That’s fitting, since it was Popeye’s popularity that helped make Lenexa’s spinach famous in the first place.