课程信息
4.6
56 个评分
26 个审阅

100% 在线

立即开始,按照自己的计划学习。

可灵活调整截止日期

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初级

完成时间大约为9 小时

建议:1 1/2 to 2 hours of study and review, each of 5 modules. There is also a final project....

英语(English)

字幕:英语(English)

100% 在线

立即开始,按照自己的计划学习。

可灵活调整截止日期

根据您的日程表重置截止日期。

初级

完成时间大约为9 小时

建议:1 1/2 to 2 hours of study and review, each of 5 modules. There is also a final project....

英语(English)

字幕:英语(English)

教学大纲 - 您将从这门课程中学到什么

1
完成时间为 1 小时

Introduction to the Sun and Eclipses

In this module we describe what causes eclipses, how rare it is for any one place to experience a total eclipse, the dramatic difference between a total or a partial eclipse, and encourage you to see the total eclipse on Aug. 21, 2017. We also review the upcoming course topics, demonstrate how large the sun is, and introduce sunspots. ...
8 个视频 (总计 24 分钟), 1 个阅读材料, 1 个测验
8 个视频
1. Description and video of a total eclipse - watch people and animals freak out!4分钟
2. How to watch an eclipse5分钟
3. Overview of Course Topics and Goals2分钟
4. Eclipses of the sun.1分钟
5. Total vs. partial eclipses1分钟
6. How Astronomers Study the Sun. The Sun's size compared with earth.4分钟
7. Sunspots and the solar activity cycle1分钟
1 个阅读材料
You can start final project now!2分钟
1 个练习
Week 1 Quiz18分钟
2
完成时间为 1 小时

Most of what we know about the Sun is learned from Light

In this module we explain how astronomers use visible and invisible light (ultraviolet and X-rays) to study the sun. We learn that all light comes from atoms, and that the quantum world of atoms is like nothing you’ve ever seen! We see how the properties of light let us determine the sun’s temperature, its composition, and the important role of its magnetic fields....
7 个视频 (总计 45 分钟), 1 个测验
7 个视频
2. What is light? Differences between red, blue, ultraviolet, and X-ray light.2分钟
3. Properties of light. White light. Kirchhoff-Bunsen laws. How color tells you temperature.8分钟
4. Don’t be fooled by reflected light!5分钟
5. Is light a Wave? Is it a particle? It’s both! The strange world of quantum physics.6分钟
6. Spectrum lines – how they tell us what the sun is made of; the quantum origin of spectrum lines.8分钟
7. How visible light, ultraviolet, X-rays reveal the sun’s photosphere, chromosphere, and corona. Magnetic fields and the solar wind.10分钟
1 个练习
Week 2 Quiz30分钟
3
完成时间为 1 小时

How does the Sun work? What makes it shine? What’s inside?

We can’t see inside the sun with visible light, but there are ways to infer or even see down to the sun’s center, where vast amount of energy are generated, making possible life on earth. ...
7 个视频 (总计 30 分钟), 1 个测验
7 个视频
2. Newton's law of gravity3分钟
3. The "pefect gas" law that explains temperature, pressure, and density3分钟
4. Inside the sun; nuclear energy generation.8分钟
5. The transport of energy from the sun's core to the surface1分钟
6. Neutrinos and Sunquakes (solar seismology)4分钟
7. Einstein proved right by a total eclipse - gravity warps space!6分钟
1 个练习
Week 3 Quiz10分钟
4
完成时间为 1 小时

How did the sun form?

When you look at Hubble Space Telescope images of beautiful clouds of gas in space you are seeing what happened in our own solar system 4 ½ billion years ago when the sun formed. This week we explain how that process works....
7 个视频 (总计 26 分钟), 1 个测验
7 个视频
2. Regions of star formation in space.3分钟
3. Converting gravitational potential energy into kinetic energy heats forming stars.5分钟
4. Conservation of angular momentum causes a new star to spin.2分钟
5. A previous generation of stars made the elements that formed the sun and planets.3分钟
6. Different kinds of stars make different elements and recyle them into the galaxy.3分钟
7. The formation of the planets around the sun.5分钟
1 个练习
Quiz for Week 426分钟
4.6
26 个审阅Chevron Right

热门审阅

创建者 JBJul 24th 2017

I learned a lot and wished I'd known how interested I am in physics. Looking forward to August 21, 2017. Thanks Dr. Doug for your teaching!

创建者 RJul 3rd 2017

Excellent Course structure. This course is suitable for all the college going students and for all branches. Thus a universal course.

讲师

Avatar

Douglas Duncan

Astronomer, Director, Fiske Planetarium
Astrophysical & Planetary Sciences

关于 科罗拉多大学波德分校

CU-Boulder is a dynamic community of scholars and learners on one of the most spectacular college campuses in the country. As one of 34 U.S. public institutions in the prestigious Association of American Universities (AAU), we have a proud tradition of academic excellence, with five Nobel laureates and more than 50 members of prestigious academic academies....

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