RL

Retell Lecture

You will hear a lecture. After listening to the lecture, in 10 seconds, please speak into the microphone and retell what you have just heard from the lecture in your own words. You will have 40 seconds to give your response.

Wind Power (风能转换器原理)

Updated at: 2018-11-24 新题 预测 机经题

录音原文
Wind turbine is a device that will convert wind into mechanical movement, which we can use to power water pump or electricity generator. Now the power that the turbine creates is obviously depended on the wind speed, it also depended obviously on the number of sails, the area of the sails and the angle of the sails makes to the wind. So you can imagine if the turbine blades flat onto the wind, the wind's going to just bend it, if there is slight angle when the wind hits it, it's going to turn the blades. We can use that for powering things. Now, we're going to have a go, making some of the very, very simple paper windmills, a sort of things that you can make from the bits and pieces lying around home, and use that to drive very small generator to power electronic devices

讨论区

A
Tony

听了 几个 3.0的 都克顿的不行了 竟然给65 我快疯了

2021-01-09
A
Tony

听了 几个 3.0的 都克顿的不行了 竟然给65 我快疯了

2021-01-09