The prefrontal cortex is the region of the brain located just behind the forehead, where higher-level cognition occurs, such as recalling whether a word was heard aloud or read. Most people show evidence of more processing on one side of the cortex,...
Duct Tape and Warts 管状胶带和疣 Have you ever used duct tape to tape a duct? Do you even know what a duct is? Maybe not. But you definitely know what duct tape is, and youve probably used it to fix everything from glasses to flashlights. Now,...
Point at a ball and a dog will look at the ball, whereas a cat will probably look at your hand. Dogs seem to have a ready understanding of how human beings direct attention by pointing, and can follow our gestures almost as if they thought the same w...
Why lips go dry？ 为什么嘴唇会干呢？ Lets start by reviewing the ways in which the surface of our lips is different from the surface of the skin on the rest of our bodies. Basically, our lips are made of the same mucusmembrane that coats th...
Research shows that whether a person is an optimist or a pessimist is related to their quality of life, including their physical health. The subjects involved first took personality tests in the 1960s and then thirty years later they completed a foll...
Mind Reading 读心术 Sometimes we get letters here asking whether psychics are for real. Well, despite the t.v. shows, there isnt any scientific evidence that psychic powers, such as mind-reading, actually exist. That doesnt prove they dont existju...
Males Rule in Costa Rican Wasp Species 哥斯达黎加父系制度的黄蜂 In most species of social insects, such as wasps, bees, and ants, the females rule. The females are the workers. They are the ones to go out and get the food, and they are al...
As anyone who's had a toddler knows, they're incredibly demanding creatures. Armed with an insatiable desire to eat and/or destroy just about everything in their path, these walking embodiments of unchecked ego can be a handful. Especially when they...
A major reason why many cancers are so dangerous is that they metastasize. This means that instead of staying in one place, the cancer cells migrate from their original site to other parts of the body. No wonder that scientists are busy studying the...
If you have kids, youve probably read the children's book: The Very Hungry Caterpillar, see, at least five thousand times. If you havent had the pleasure, heres a brief plot summary. A caterpillarhatches from a small, white egg. Extremely hungry, the...
