Pollution in cities is pretty much an accepted thing, but what about pollution in the country? Learn about pollution on this Moment of Science.
The terrain of the city, all that concrete and those rooftops, absorbs heat during the day. At night the hot air rises, creating the low-pressure heat island that sucks in cooler air from the perimeter of the city.
Did you ever wonder what occurs inside your body when something funny happens? What is this thing we have in our brains that makes us say “ha-ha” when someone slips on a banana? One way to find out is to watch the brain laugh. That’s what Dartmouth neuroscientist William Kelley did. He and his team [...]