Chapter13 Light of the rainbow

Chapter13 Light of the rainbow

2023-06-28    03'46''

主播: 心妞妞

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介绍:
中英文台词: The Black Death strikes human beings again, and this time it is in England. The horrible disease was carried to England more than three hundred years ago when the black mouse found its way into the escaping ship. Many years later, the suffering continues. 黑死病卷土重来,这次它袭击了英格兰。300年前,黑鼠躲进了那艘开往英格兰的大船,将可怕的疾病带到了这里。多年以后,苦难仍在继续上演。 The extreme terror sweeps the entire country; all movements in and out of the hard-hit areas are banned, in particular, the access to those hard-hit alleys in the urban centre. As a measure to protect against risks associated with the Black Death, the college forbids students to stay in the schoolyard and has to close, aiming to reduce the spread of the disease. So Newton returns to his childhood home. 一股极度恐慌之势席卷了全国。重灾区禁止一切进出活动,进入市中心重灾巷更是难上加难。大学为了防范黑死病传染风险,便采取措施,关闭了校园,禁止学生待在里面,以减少疾病扩散。牛顿便回到了童年时期住的那个屋子。 One day Newton has an outing to a nearby village. After a rainfall, an eye-catching rainbow spreads out in the now blue sky. The rainbow phenomenon makes him think of the relationship between light and colour. 一天,牛顿去邻近村庄远足。一场大雨过后,一碧如洗的天空中悬挂着一道彩虹,十分引人注目。彩虹现象让牛顿思考起光线和色彩之间的关系。 People think that light is just 'light' that doesn't have colour. It is objects that colour light. To prove that the concept is just based on people's subjective opinions and may not be correct, Newton conducts many trials of an experiment with a transparent glass object of triangle bases and rectangle side surfaces. He finds that light can be broken up into different colours, which isn't consistent with the conventional thought. He then puts forward the theory of colour, clarifying that a ray of sunlight is made up of seven different colours. 人们认为光本没有颜色,物体给光着上颜色。为证明这种观点只是基于主观臆测,可能与事实不符,牛顿便用一面底座为三角形、各侧面为长方形的透明玻璃镜进行了多次实验尝试。他发现光可以被分解为多种颜色,这与传统观念背道而驰。他接着又提出色彩理论,阐释一束阳光是由七种不同的颜色构成的。 From this work, Newton also concludes that the telescopes that astronomers use to observe planets in the solar system suffer from one major shortcoming. The originally parallel light rays from a very distant object pass through the glass mirror of the telescopes and get broken into different colours. It leads to a transformed image, which is neither accurate nor true-to-life. 从这项研究中,牛顿也得出结论:天文学家用来观察太阳系中各行星的望远镜存在一个重大缺点。远处物体发出的光束原本是平行的,但经过望远镜玻璃镜面时,其会分散成各种颜色。这会改变图像,使图像失真,且不准确。 To solve the problem, Newton turns his childhood home into a workshop and invents the reflecting telescope. It has a simple design. He chooses a special metal as the most suitable material for the main mirror. But to his disadvantage, there is no good technique for polishing the metal at the time. Newton does not tolerate any kind of hurdle standing in his path. He is able to find means to polish the metal to a precise shape. Most importantly, he also inserts a second mirror in a place near the main mirror's focus to reflect the image out beyond the boundary of the entering light. Newton constructs different versions of the reflecting telescope to make them more practical. 为解决这一问题,牛顿将童年时期住的屋子变成了一个工作作坊,发明起反射镜。反射镜设计简单。他选用了一种最合适的特殊金属材料,用来制作主镜。但当时缺乏高超的金属打磨技术,给牛顿带来了不便。牛顿不会容忍任何障碍阻碍他的步伐。他顺利找到了方法,将金属打磨到了精确的形状。更重要的是,他还在主镜焦点附近**了第二面镜面,将形成的图像反**整段光线的界限之外以被观察。牛顿发明了多种反射镜版本,使其更有实用价值。 Newton also spends a lot of time doing some revision of the challenging study notes that he wrote down during college. At his writing desk, slips of graph paper are everywhere filled with numbers, drawings, and inked writings. 在大学期间,牛顿曾写下了很多费解的、具有挑战性的学习笔记。在远离学校的这段时间内,牛顿也花费很多时间来复习那些笔记。他的书桌上随处可见图表纸条,上面满是数字、图表和墨水笔记。
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