Today is day of overcast and rainy does not have measure go on a journey, it is curtilage in the home, faineant, I decide to do a glider, let it hover freely in the sky.
今天是阴雨天没有办法出游，宅在家里，无所事事，我决定做一架滑翔机，让它自由地在天空中翱翔。
Begin to make glider. I open computer to search the simple method that make and the data that need preparation. The data that needs preparation has the paper cup with same size two, adhesive plaster, a certain number of elastic, although simple, but he has a pretty name- - Magenusi glider. Say to do do, check floor of two paper cup above all neat, secure together with adhesive plaster, cement originallies; Be together muscle of a few skins repeatedly next, increase length, length is 8 times of circumference of paper cup bottom probably; A when pin elastic with finger, moderate of elastic degree of tightness twine the joint in butt joint of two paper cup, loose paper cup, cup letting paper rises along the directional roll of elastic, a glider that does not pass again simply has been done. Here involves a mechanical principle, transverse force is affected to what the object moves, I just began to see this shed kinetic principle, water of a mist, much finally full marks / look a few times and combine ” of “ flight experiment to just understand among them truth. This force basically is affected and change flight speed and way, and its speed is mixed direction is mixed high be closely bound up. It is my “ below the experimental process of labyrinthian “ .
开始制作滑翔机。我打开电脑搜索简单的制作方法和需要准备的材料。需要准备的材料有大小相同的纸杯两个，胶带，若干条橡皮筋，虽然简单，但是他有一个漂亮的名字--马格努斯滑翔机。说做就做，首先把两个纸杯底部对齐，用胶带固定在一起，粘牢固；然后将几条皮筋连在一起，增加长度，长度大概是纸杯底部周长的8倍；用手指压住橡皮筋的一头，将橡皮筋松紧适中的缠绕在两个纸杯对接的连接处，松开纸杯，让纸杯沿着橡皮筋的方向转动起来，一个再简单不过的滑翔机就做好了。这里涉及到一个力学原理，横向力对物体运动的影响，我刚开始看这个流动力学原理，一头雾水，最后多满分/看几次并结合“飞行试验”才明白其中道理。这个力主要影响和改变飞行速度和方向，并且它的速度和方向和高度息息相关。以下就是我“曲折“的实验过程。
The volitation that just began a few times is not ideal, the degree of tightness of leather muscle spends first time to was not adjusted good, glider is grown directly directly go up; What stick the 2nd times as a result of adhesive plaster is not quite firm, glider has not flown already crash; The 3rd times I sum up experience lesson to adjust degree of tightness to spend, cement paper cup is bottom, but still did not achieve anticipated result; The 4th times I combine the guidance of the data that searchs on the net and father, the height of the takeoff that I increase, adjust 25 meters of height by 10 original meters, operate according to the gimmick of “ professional “ , not OK careless, simple and easy finally glider flew off beautiful arc, flew off ideal height and length.
刚开始几次的飞翔都不理想，第一次皮筋的松紧度没有调整好，滑翔机直接一头栽在地上；第二次由于胶带粘的不够牢固，滑翔机还没飞起就已经坠毁了；第三次我总结经验教训调整松紧度，粘牢纸杯底部，但是还是没有达到预期的效果；第四次我结合网上查找的资料和爸爸的指导，我增加的起飞的高度，由原来的十米调整到25米高度，并按照“专业“的手法操作，一丝都不可以马虎，最后简易滑翔机飞出了漂亮的弧线，飞出了理想的高度和长度。
Look be like simple and easy glider, the physical knowledge with profound connotation, attract me to understand, go exploring this new world.
看似简易的滑翔机，内涵高深的物理知识，吸引我去了解，去探索这个新的世界。(文/潘宁)