国产av不卡一区二区_欧美xxxx做受欧美_成年人看的毛片_亚洲第一天堂在线观看_亚洲午夜精品久久久中文影院av_8x8ⅹ国产精品一区二区二区_久久精品国产sm调教网站演员_亚洲av综合色区无码一二三区_成人免费激情视频_国产九九九视频

在高爾夫球上，我們會(huì)看到有很多凹陷，就像人臉上的酒窩一樣。不過(guò)，這些凹陷可不是為了讓球“美觀”，而是為了讓它飛得更遠(yuǎn)。這是什么原理呢？下面這篇文章將會(huì)告訴你。

So that they look cute? NO!

Because the dimples maximize the distance golf balls travel. Dimpled balls travel up to four times farther than smooth-surfaced golf balls.

In the early days of golf, smooth-surfaced balls were used until golfers discovered that old, bumpy balls traveled longer distances. The science ofaerodynamicshelps explain the dimpled phenomenon. The dimples reduce the drag on a golf ball by redirecting more air pressure behind the golf ball rather than in front of it. The higher levels of pressure behind the golf balls force them to go far distances.

The dimples change the levels of pressure by bringing the main air stream very close to the surface of the golf ball. The dimples, or "turbulators," increase the turbulence in the layer of air located next to the surface of the ball. This high-speed air stream near the ball increases the amount of pressure behind the ball-thereby forcing the ball to travel farther.

aerodynamics: 空氣動(dòng)力學(xué)

（來(lái)源：coolquiz.com 英語(yǔ)點(diǎn)津 Annabel 編輯）

我想了解更多趣味百科知識(shí)