|
所在平台: Coursera |
课程主页: https://www.coursera.org/learn/astronomy-technology
课程评论：没有评论
课程名称：AstroTech: 天文学发现背后的科学与技术 课程概述： 现代天文学做出了令人惊讶的发现，例如星星如何燃烧和黑洞如何形成，从宇宙边缘的星系到附近的致命岩石，元素的来源以及宇宙膨胀的加速机制。但我们又是如何知道这些的呢？事实上，如果没有技术，天文学是不可能实现的。每一次天文学的进步都是技术的进步。然而，单靠技术是不够的，我们必须结合物理学的知识，批判性地应用这些技术，才能揭开宇宙的秘密。 每周，我们将探讨天文学技术的不同方面，将每项技术与一项重要的科学成果相匹配。我们将解释这些技术的工作原理，如何使我们能够收集天文数据，并通过基本的物理学知识，如何解释这些数据以进行科学发现。 课程将包括视频讲座、每周小测验和讨论论坛。每周将有五个视频，总时长约40分钟，视频内容将包括：简短介绍、科学故事实例、关键技术领域的解释、技术的实际应用以及未来可能的展望。 课程大纲： 1. 科学与技术：介绍课程主题，并初步了解我们将学习的科学与技术。 2. 望远镜与星星：讲解望远镜的工作原理，如何使用不同颜色的图像，以及利用这些测量理解星星的工作机制。 3. 太空与黑洞：猎寻黑洞，为什么需要超越大气层才能做到这一点。 4. 探测器与首批星系：探测器的工作原理，以及如何使用它们捕捉来自最早星系的光线。 5. 计算机与致命岩石：计算机在天文学中的关键作用，以及它们如何被用来寻找稀有天体。 6. 光谱分析与暗能量：如何将光分解为其组成部分，如何利用这一方法进行天体物理学研究，以及我们为何相信宇宙充满了神秘的暗能量。
Name:Science and Technology
Description:Introducing the themes of the course, and a first look at the science and technology we will study.
Name:Telescopes and Stars
Description:How telescopes work, how we use them to make images in different colours, and how we use those measurements to understand how stars work.
Name:Space and Black Holes
Description:Hunting for black holes, and why we need to get above the atmosphere to do it.
Name:Detectors and the First Galaxies
Description:Detectors, how they work, and how we use them to catch the light from the very first galaxies.
Name:Computers and Killer Rocks
Description:Why computers are crucial in astronomy, and how they are used to find rare objects.
Name:Spectroscopy and Dark Energy
Description:How to break up light into its component parts, how that allows us to do astrophysics, and why we believe the Universe is full of a mysterious dark energy.
"How do they know that?" Modern astronomy has made some astonishing discoveries - how stars burn and how black holes form; galaxies from the edge of the universe and killer rocks right next door; where the elements come from and how the expanding universe is accelerating. But how do we know all that? The truth is that astronomy would be impossible without technology, and every advance in astronomy is really an advance in technology. But the technology by itself is not enough. We have to apply it critically with a knowledge of physics to unlock the secrets of the Universe. Each week we will cover a different aspect of Astronomical technology, matching each piece of technology to a highlight science result. We will explain how the technology works, how it has allowed us to collect astronomical data, and, with some basic physics, how we interpret the data to make scientific discoveries. The class will consist of video lectures, weekly quizzes, and discussion forums. Each week there will be five videos, totalling approximately 40 minutes. They will be in a regular pattern - a short introduction, an example science story, an explanation of the key technology area, a look at how the technology is used in practice, and finally a look at what the future may hold.
