refracting telescope

简明释义

折射型望远镜

英英释义

例句

1.A refracting telescope can provide clear images of distant stars and galaxies.

一台折射望远镜可以清晰地提供遥远星星和星系的图像。

2.Many museums display historical refracting telescopes that were used by famous astronomers.

许多博物馆展示了历史上的折射望远镜，这些望远镜曾被著名天文学家使用。

3.When purchasing a refracting telescope, consider the size of the aperture for better light gathering.

在购买折射望远镜时，要考虑光圈的大小以便更好地收集光线。

4.In science classes, students learn how a refracting telescope works using lenses.

在科学课上，学生学习如何使用透镜工作的折射望远镜。

5.The refracting telescope is often used by amateur astronomers to observe planets.

业余天文学家常用折射望远镜观察行星。

作文

The invention of the refracting telescope has significantly changed our understanding of the universe. Before its creation, astronomers were limited to observing celestial bodies with the naked eye or using simple lenses that did not provide much detail. The refracting telescope, which uses lenses to bend and focus light, allowed for much clearer and more detailed observations of distant stars and planets. This innovation opened up a new era in astronomy, enabling scientists to make groundbreaking discoveries about the cosmos. One of the most notable figures in the history of the refracting telescope is Galileo Galilei. In the early 17th century, he improved upon existing designs and was one of the first to use the refracting telescope for astronomical observations. With his telescope, he discovered the moons of Jupiter, the phases of Venus, and detailed features on the Moon's surface. These findings provided strong evidence against the geocentric model of the universe, which posited that the Earth was the center of the universe. Instead, Galileo's work supported the heliocentric model, where the Sun is at the center, fundamentally changing our understanding of our place in the cosmos.The refracting telescope operates on the principle of refraction, which is the bending of light as it passes through different mediums. In this case, light enters the telescope through a large objective lens, which is designed to gather as much light as possible. This lens bends the light rays to form an image at a focal point. A smaller eyepiece lens then magnifies this image, allowing the observer to see the details of celestial objects more clearly. The design of the refracting telescope has evolved over the centuries, with improvements in lens quality and coatings that reduce distortion and enhance clarity.Despite its advantages, the refracting telescope also has its limitations. One of the main drawbacks is chromatic aberration, which occurs when different colors of light are refracted by different amounts, resulting in a blurry image with colored fringes. To combat this issue, astronomers often use compound lenses made of multiple types of glass that help to minimize these distortions. Additionally, refracting telescopes can be quite large and heavy, making them less portable than their reflecting counterparts, which use mirrors instead of lenses.In modern astronomy, while refracting telescopes are still used, they have largely been replaced by reflecting telescopes, especially for professional observatories. Reflecting telescopes can be built much larger and are easier to construct without the issues of chromatic aberration. However, the refracting telescope remains popular among amateur astronomers due to its simplicity and the quality of images it can produce for planetary observations.In conclusion, the refracting telescope has played a crucial role in the advancement of astronomy. It has allowed humanity to gaze deeper into the universe, revealing the wonders of space that were once beyond our reach. From Galileo's revolutionary discoveries to the modern-day explorations of distant galaxies, the refracting telescope continues to inspire curiosity and expand our knowledge of the cosmos. As technology advances, we may see further enhancements to this classic instrument, ensuring that it remains a vital tool in our quest to understand the universe.

折射望远镜的发明显著改变了我们对宇宙的理解。在它被创造之前，天文学家只能用肉眼观察天体或使用简单的透镜，这些透镜并没有提供太多细节。折射望远镜利用透镜弯曲和聚焦光线，使得对遥远星星和行星的观察更加清晰和详细。这一创新开启了天文学的新纪元，使科学家能够对宇宙进行突破性的发现。在折射望远镜历史上，一个最显著的人物是伽利略·伽利莱。在17世纪初，他改进了现有的设计，并成为最早使用折射望远镜进行天文观测的人之一。通过他的望远镜，他发现了木星的卫星、金星的相位以及月球表面的详细特征。这些发现为地心说提供了强有力的反证，该理论认为地球是宇宙的中心。相反，伽利略的工作支持了日心说，即太阳位于中心，这根本改变了我们对宇宙中自身位置的理解。折射望远镜的工作原理基于折射，即光线在通过不同介质时的弯曲。在这种情况下，光线通过一个大型的物镜进入望远镜，该物镜旨在尽可能多地收集光线。该透镜弯曲光线以在焦点形成图像。然后，一个较小的目镜透镜放大这个图像，使观察者能够更清楚地看到天体的细节。折射望远镜的设计经过几个世纪的发展，透镜质量和涂层的改善减少了失真并增强了清晰度。尽管有其优势，折射望远镜也有其局限性。主要缺点之一是色差，当不同颜色的光以不同的程度折射时，会导致模糊的图像和带有彩色边缘的现象。为了应对这个问题，天文学家通常使用由多种类型玻璃制成的复合透镜，以帮助最小化这些失真。此外，折射望远镜可能相当大且沉重，使其比反射望远镜更不便携带，后者使用镜子而不是透镜。在现代天文学中，虽然折射望远镜仍然被使用，但它们在很大程度上被反射望远镜所取代，尤其是在专业天文台。反射望远镜可以建造得更大，而且在没有色差问题的情况下更易于构造。然而，由于其简单性和能为行星观测提供的图像质量，折射望远镜在业余天文学家中仍然很受欢迎。总之，折射望远镜在天文学的进步中发挥了至关重要的作用。它使人类能够更深入地凝视宇宙，揭示了曾经超出我们视野的空间奇观。从伽利略的革命性发现到现代对遥远星系的探索，折射望远镜继续激发好奇心并扩展我们对宇宙的知识。随着技术的进步，我们可能会看到这一经典仪器的进一步增强，确保它在我们理解宇宙的追求中仍然是一个重要工具。