introduction to astrophysics

Under “Choose a Format,” click on Video Download or Audio Download. I learned a lot from his lectures, but got totally lost in the math. Depending on your email provider, it may have mistakenly been flagged as spam. 21,199 already enrolled! But Professor Winn takes you beyond the images and descriptions to teach you how to understand and solve the physics problems at the heart of the field. Sorry, this feature is not available yet. I was not sure what to expect. Learn how stars work by delving into stellar structure, using the Sun as a model.

Privacy Policy. Then review the four fundamental forces of nature and perform a calculation that explains why atoms have to be the size they are. They will receive an email from The Great Courses notifying them of your eGift. All rights reserved. Then study the vast range of scales in astrophysics—from nanometers to gigaparsecs, from individual photons to the radiation of trillions of suns. Look for exclusive offer emails and new course releases from The Great Courses! Creative Commons Attribution-ShareAlike License. Q: Oops! Enroll. Ability to download 24 video lectures from your digital library, FREE video streaming of the course from our website and mobile apps, loc_en_US, sid_1360, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]. But how many of us truly understand how stars shine, where Saturn’s rings come from, or why galaxies have their distinctive shapes? To purchase a DVD or CD version of a course and mail it to a friend, please call customer service at 1-800-832-2412 for assistance. Even if you feel like math and physics are not your strongest subjects, you will find his presentation enthralling, as you witness how astrophysicists frame, analyze, and solve problems that have led to astonishing discoveries throughout the universe. I thought this would be a genuine introduction to astrophysics, but I found it incomprehensible. Get the big picture in a breathtaking series of exponential jumps—zooming from Earth, past the planets, stars, galaxies, and finally taking in countless clusters of galaxies. These absorption lines reveal the composition and temperature of the Sun's outer atmosphere, and similar lines characterize other stars. Please call customer service at 1-800-832-2412 for assistance. Why are large moons spherical? Such stars end in a gigantic explosion called a supernova, blowing off outer material and producing a super-compact neutron star, a billion times denser than a white dwarf. Emissions from these objects are examined across all parts of the electromagnetic spectrum, and the properties examined include luminosity, density, temperature, and che…
Black holes are some of the most fascinating things in the universe.” His infectious joy in the subject—even when it is at its most complex—is palpable in every lecture. Look at a graphical method for understanding orbits, and consider the conservation laws of angular momentum and energy in light of Emmy Noether’s theory that links conservation laws and symmetry. Consider the problem of gleaning information from the severely limited number of optical photons originating from astronomical sources.

Along the way, get a grip on the past, present, and future of the universe. But Professor Winn shows how Newton was inspired by Johannes Kepler’s three laws of planetary motion. Eventually we expect them to be confirmed in all detail. Trace this mysterious force to the lambda term in the celebrated Friedmann equation, proposed in the 1920s. He rocks! Get a crash course in nuclear physics as you explore what makes stars shine. Review the surprising characteristics of many exoplanets and focus on five that are especially noteworthy. Your marketing materials should make it clear this course is NOT for the educated generalist. We will send you an email so you can reset your password. Please email customer service at (customerservice@thegreatcourses.com) or call our customer service team at 1-800-832-2412 for assistance. Begin by defining the difference between astrophysics and astronomy. The Big Bang theory is one pillar of modern cosmology.

Then consider clusters of galaxies and the clues they give for missing mass—dubbed “dark matter.” Chart the distribution of dark matter around galaxies and speculate what it might be. If they are already a customer, they will be able to add the gift to their My Digital Library and mobile apps. Please enter your e-mail address associated with your Great Courses account. That field is astrophysics. Discovered in the 1990s, the problem is “dark energy,” which is causing the expansion of the universe to accelerate. As he makes clear from the first lecture, this course relies heavily on high school and first-year college math. In a typical physics class, Newton’s laws are memorized with little appreciation for where they came from. Professor Winn is obviously a great teacher. © The Teaching Company, LLC. Q: How will my friend or family member know they have a gift? Q: What if the email associated with eGift is not for my regular Great Course account? I never believed that could happen. I have degrees in French, Political Science and Linguistics, but I never took physics or trig, so the many equations left me totally confused. This page was last edited on 7 September 2018, at 02:21. An Introduction to Astrophysics. The invention of radio and X-ray telescopes proved them spectacularly wrong. An email will be sent immediately to notify the recipient of your gift and provide them with instructions to redeem it. Similarly, most astronomy lectures on the electromagnetic spectrum—the range of wavelengths from radio to visible light to gamma ray—don’t normally explain the ultimate origin of radiation. Embark on Professor Winn's specialty: extrasolar planets, also known as exoplanets.

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