李将军英语时间0817-关于屁的问题 2017

How Big Is A Fart? Somewhere Between A Bottle Of Nail Polish And A Can Of SodaBy Maggie Koerth-BakerFiled under Science Question From A ToddlerThe questions kids ask about science aren’t always easy to answer. Sometimes, their little brains can lead to big places adults forget to explore. With that in mind, we’ve started a series called Science Question From A Toddler, which will use the curiosity of kids ages 5 and younger as a jumping-off point to investigate the scientific wonders that adults don’t even think to ask about. The answers are for adults, but they wouldn’t be possible without the wonder only a child can bring. And now, our question …Q: How much space does a fart take in your body? — Inbal R., age 5Placed under the microscope, even the dullest grain of sand develops a personality. So it goes with farts. (Or “flatulence,” as they say in the scientific literature.) Farts may seem largely interchangeable, but each one is special. Even just your own farts are a circus sideshow of intestinal gas: big ones, little ones, stinky ones, oddly fresh ones. There is not enough scientific evidence to say that no two farts are alike — but you can rest assured that they are a riot of diversity.As a result, it’s impossible to say exactly how much space a generic fart takes up in the body. I can, however, tell you about the range of specific farts, as captured in scientific experiments. For instance, a 1997 study of 16 Americans found a volume-per-fart range of 17 milliliters to 375 milliliters.1 Imagine a bottle of nail polish — that’s a rough analogy for the volume of the daintiest of poots. Now imagine a can of soda. That’s the volume of a really big stinker. Your body is a wonderland.968重庆之声每周一至周五8点56分每天三分钟养成良好英语听说习惯