-, 视频播放量 7、弹幕量 0、点赞数 1、投硬币枚数 0、收藏人数 0、转发人数 0, 视频作者 一只小TED, 作者简介 立志于分享更多有意思的演讲和采访～～～,相关视频:【TED精选演讲】礼貌是虚情假意吗(英文字幕),【TED精选演讲】学习,为了自由。(英文字幕),【TED精选
《问问故事机器人》StoryBots,是Netflix出品的儿童英语启蒙科普动画。每一集都包含了一个科学小知识。机器人341-B小队看似无厘头,却每次都能认真完成任务呢。 今天这集里小女孩Kaitlyn提出了How do airplanes fly的问题。机器人341-B小队探寻了超人,小鸟…最终找到了答案。我们一起来看看吧。 总结:飞机起飞需要四个Fo...
“You’d be amazed—even on short flights, the most [fuel] efficient way to do it is climb the airplanes up to high altitude, pull the power back, and then start back down,” he says. “I may run up to 31,000 feet and I won’t be there five minutes.” [Related: Let’s ...
Airplanes fly by traveling on wind flow and have specially designed wings that create lift. Like birds, airplane wings create an unequal distance across the top and bottom of the wing, forcing the surrounding air to move faster over the top than the air traveling beneath. Fast-moving air caus...
How airplanes fly 小学生英语学习阅读知识课外阅读我们经常能看到飞机在高空中飞行,可你知道飞机是怎么飞起来的吗?李宏强小学英语一点通
If you’re wondering how planes fly at such high altitudes? You are in the right place. Here you will get all the necessary information and reasons behind it. Generally, commercial airplanes fly at about 35,000 feet at around 6.62 miles. If you fly frequently, you will hardly notice the...
How do airplanes fly? We all know they do and you’re probably so used to them you barely lift a bored hand to signal one leaving a white mark across the sky. You travel from place to place, above the clouds, while sipping on a fruit juice with a straw and eating tiny food. But...
Today's jet airplanes use the same principles of aerodynamics that the Wright brothers used in 1903 to get their Flyer in the air. But how exactly do airplanes fly? Flight requires two things: thrust and lift. Thrust is the forward motion provided by a propeller or jet engine. (A ...
As discussed by Gail Craig (Stop Abusing Bernoulli! How Airplanes Really Fly, Regenerative Press, Anderson, Indiana, 1997), let us assume that this argument were true. The average speeds of the air over and under the wing are easily determined because we can measure the distances and thus th...
How Do Airplanes Fly? 定价:54.00元 ISBN:9781571020444 豆瓣评分 目前无人评价 + 加入购书单