Introduction to Stars, Galaxies, & the Universe
Prof. Richard Pogge, MTWThF 9:30
Educational or non-profit organizations wishing to reproduce or provide links to any part of these pages must contact Richard Pogge (email@example.com) in writing. Please see the Usage Guidelines below for specific information.
All other interested persons who are not enrolled in this course at The Ohio State University are welcome to browse these pages, provided that they observe the following usage restrictions:
If you notice any inappropriately used or incorrectly cited text or images, please contact me so that I can either seek the proper use permissions or delete them from these pages (providing substitutions where possible).
I have made a good faith effort to be very careful about not including copyrighted text (other than my own) in these pages, except where I have sought specific permission from the original authors. I would appreciate help correcting any erroneous citations to primary sources you might spot in these pages.
Images are essential to teaching astronomy, and present a range of copyright issues in the context of the Internet. Since copyright law with regards to electronic graphics is still being developed, I have little guidance except common sense. As such, I use primarily public domain images on these pages, taking care to correctly cite the original sources, and have sought permission for other images (e.g., I have an agreement with the Anglo-Australian Observatory for use of some of their copyrighted images on these pages).
Some of the images and graphics displayed during lectures are copyrighted material not available in the public domain. While use of these images in lecture is permitted under the heading of "Fair Use", posting these same images to the Web is another matter altogether. I am seeking permission from the original sources to post some of the graphics on these pages, but not all persons have granted permission. For example, the publishers of the textbook allow me to scan a very limited number of graphics from the book for display in lecture (taking the place of their plastic overheads), but they have not granted permission to post them to the web. This can be somewhat inconvenient for the student, as a number of the images and graphics used in lecture are not available online and so the notes are sometimes incomplete in that sense, but this is unavoidable.
An exciting feature of electronic presentation is the ability to set some images into motion. In astronomy we often deal with dynamic phenomena: rotation, orbital motion, explosions, tidal encounters & collisions, etc., and static pictures do not convey the concepts as clearly as animations. We are beginning to create our own animations for these classes, and are putting them onto the web pages for the students to view (and play with) after class to help cement the ideas. All OSU-created animations are copyrighted and subject to the same restrictions noted above.
Some of the animations shown in class were created by others. In these cases, I have put in links to the original webpages from which I got them, or am seeking permission from the creators to make local copies available to try to help with the download time for my students. In all cases, these local copies are accompanied by links to the original sources, and you should always consult with the creators to seek permission to use them.
During Winter Quarter 2006 I experimented with making audio recordings of my lectures available for download. These take the form of MP3 audio files recorded using a pocket digital voice recorder and served on this website either directly or via an RSS feed (aka "Podcasting").
All of these recordings are copyrighted, and while you may download them for personal listening, you may not distribute them in any way, or make them available to others. If other people are intersted in listening to these lecture, please direct them to the Lecture Audio webpage.