Acerca de este Curso
A total eclipse is one of the most spectacular sights you can ever see! It looks like the end of the world may be at hand. There is a black hole in the sky where the sun should be. Pink flames of solar prominences and long silver streamers of the sun's corona stretch across the sky. It gets cold, and animals do strange things. People scream and shout and cheer, and remember the experience their whole life. But total eclipses are important scientifically as well. They let us see parts of the sun’s atmosphere that are otherwise invisible. A total eclipse presented the first chance to test Einstein’s prediction that matter can bend space – like near a black hole. The best total eclipse in the United States in 40 years happens August 21st, 2017. This course has two primary goals: 1) to get you excited for the total solar eclipse coming in August 2017 and prepare you and your community to safely view it 2) to provide an inviting overview of the science of the sun and the physics of light If you are most interested in preparing for the eclipse, you can hop right into Week 5! If you want the full course experience, and to get some fun scientific context for what you'll be seeing on August 21st, start with Week 1 and move through the course week by week! [Note: if you start with Week 1, you can skip through some of the repeated material once you get to Week 5.] Overall this course will prepare you to... * Safely view the total or partial solar eclipse * Help others watch safely and even make money by leading a “neighborhood watch” of the eclipse * Review fundamental sun science, including the physics of light, how astronomers study the sun, how it formed, how we know what’s inside it, and where the energy that supports life on earth is generated
Globe

Curso 100 % en línea

Comienza de inmediato y aprende a tu propio ritmo.
Beginner Level

Nivel principiante

Clock

Aprox. 9 horas para completar

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

English

Subtítulos: English
Globe

Curso 100 % en línea

Comienza de inmediato y aprende a tu propio ritmo.
Beginner Level

Nivel principiante

Clock

Aprox. 9 horas para completar

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

English

Subtítulos: English

Syllabus - What you will learn from this course

1

Section
Clock
1 hour to complete

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. ...
Reading
8 videos (Total 24 min), 1 reading, 1 quiz
Video8 videos
1. Description and video of a total eclipse - watch people and animals freak out!4m
2. How to watch an eclipse5m
3. Overview of Course Topics and Goals2m
4. Eclipses of the sun.1m
5. Total vs. partial eclipses1m
6. How Astronomers Study the Sun. The Sun's size compared with earth.4m
7. Sunspots and the solar activity cycle1m
Reading1 readings
You can start final project now!2m
Quiz1 practice exercises
Week 1 Quiz18m

2

Section
Clock
1 hour to complete

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....
Reading
7 videos (Total 45 min), 1 quiz
Video7 videos
2. What is light? Differences between red, blue, ultraviolet, and X-ray light.2m
3. Properties of light. White light. Kirchhoff-Bunsen laws. How color tells you temperature.8m
4. Don’t be fooled by reflected light!5m
5. Is light a Wave? Is it a particle? It’s both! The strange world of quantum physics.6m
6. Spectrum lines – how they tell us what the sun is made of; the quantum origin of spectrum lines.8m
7. How visible light, ultraviolet, X-rays reveal the sun’s photosphere, chromosphere, and corona. Magnetic fields and the solar wind.10m
Quiz1 practice exercises
Week 2 Quiz30m

3

Section
Clock
1 hour to complete

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. ...
Reading
7 videos (Total 30 min), 1 quiz
Video7 videos
2. Newton's law of gravity3m
3. The "pefect gas" law that explains temperature, pressure, and density3m
4. Inside the sun; nuclear energy generation.8m
5. The transport of energy from the sun's core to the surface1m
6. Neutrinos and Sunquakes (solar seismology)4m
7. Einstein proved right by a total eclipse - gravity warps space!6m
Quiz1 practice exercises
Week 3 Quiz10m

4

Section
Clock
1 hour to complete

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....
Reading
7 videos (Total 26 min), 1 quiz
Video7 videos
2. Regions of star formation in space.3m
3. Converting gravitational potential energy into kinetic energy heats forming stars.5m
4. Conservation of angular momentum causes a new star to spin.2m
5. A previous generation of stars made the elements that formed the sun and planets.3m
6. Different kinds of stars make different elements and recyle them into the galaxy.3m
7. The formation of the planets around the sun.5m
Quiz1 practice exercises
Quiz for Week 426m

5

Section
Clock
5 hours to complete

The Aug. 21, 2017 “Great American Total Solar Eclipse”

This Week 5 presentation concentrates on what will happen during the Great American Eclipse of Aug. 21, 2017. It may be viewed alone, or after Weeks 1-4. Weeks 1-4 give a lot of explanation of what you will see, so I hope you take the full course, but if you are in a hurry, this week alone will prepare you....
Reading
4 videos (Total 19 min), 3 quizzes
Video4 videos
2. Eclipses of the sun and moon. Who sees a total eclipse and who sees a partial eclipse?4m
3. A personal description of the incredible drama of a total eclipse, how animals respond, how to watch safely.5m
4. How to conduct neighborhood eclipse watching. How to make money and friends by being the one who prepares before eclipse day. Answers to Frequently Asked Questions. How to SAFELY use binoculars with a group.5m
Quiz1 practice exercises
Week 5 Quiz32m
4.6

Top Reviews

By 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!

By RJul 3rd 2017

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

Instructor

Avatar

Douglas Duncan

Astronomer, Director, Fiske Planetarium

About University of Colorado Boulder

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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