STARS & PLANETS - Astronomy Lectures

Astronomy Lecture 1: What Is a Star?
Link
1:02:02
In this first lecture video of three in the Frontiers of Science unit on astronomy, Columbia University professor David Helfand sifts through astrophysics jargon to explain the basic physics behind stars—"our signposts for measuring our place in the Universe and its history"—and how they evolve over cosmic time. A lecture transcript and companion PowerPoint presentation are also available on FoSO.




Astronomy Lecture 2: Lives of the Stars
Link
1:09:42
In this second lecture video of three in the Frontiers of Science unit on astronomy, Columbia University professor David Helfand explores the life history of a star, a biography encompassing millions of years, and how astrophysicists are able to trace stellar evolution. A lecture transcript and companion PowerPoint presentation are also available on FoSO.



Astronomy Lecture 3: Planets Everywhere
Link
53:29
In this third lecture video of three in the Frontiers of Science unit on astronomy, Columbia University professor David Helfand describes methods of detecting other solar systems and planets and their properties in the interest of answering the question: Is our solar system unique, or are there others like it in the Universe? A lecture transcript and companion PowerPoint presentation are also available on FoSO.

5 comments:

Anonymous said...

affordable link building service buy seo backlinks purchase backlinks

Anonymous said...

anotherpalebluedot.blogspot.com click site This includes buy here pay here auto lots, dealers that "finance low credit score" and "in house financing" car lots

Anonymous said...

Howdy! I just would like to give you a big thumbs up for the excellent info you've got here on this post. I will be returning to your site for more soon.

[url=http://onlinepokiesking4u.com]click here for more information[/url]

Anonymous said...

They are the best signifies to communicate with our near and dear ones. Most current mobile phones are tiny expensive as they are equipped with huge number of features. Mobile telephone companies offer you various attractive deals on most current mobile phones with mobile networks so that the purchasers could opt for their preferred phones without having bothering much about the costs. Get in touch with bargains of mobile deliver you - provides, gifts and flexibility with your contract mobiles.

[url=http://tinyurl.com/a2nyumj]best mobile phone deals[/url]. No doubts, mobile phones have changed our way of communication as now men and women can get connected to any one at anytime in any portion of the world. If you are making up your mind to buy any latest handset, the most effective thought is to avail them by way of mobile phone deals.

Mobile phones have become component of our day to day lives. In the mobile business, a technological revolution has taken place in the final five years which has brought a quantity of higher-end most recent mobile phones in to the markets which present deals with quite a few revolutionary attributes.

In the marketplace there are so several bargains and presents with mobile phones and purchasers so you can opt for your deals according to need to have. You can contract mobile phone on on-line mobile shops and can evaluate contract telephone deals of handsets with many networks that supply you finest deals, absolutely free gifts and gives at low-priced rate with saving your time.

All the above deals are quickly out there. Flooded with number of features and most up-to-date applications, these mobile phones are gaining adequate reputation amongst the people today of all age groups. Some of the best mobile bargains in this category present you with expensive free gifts, which is just great.

Anonymous said...

You are so cool! I don't think I have read something like this before. So good to discover someone with a few genuine thoughts on this topic. Really.. many thanks for starting this up. This website is one thing that is needed on the web, someone with a bit of originality!

[url=http://truebluepokies4u.com]pokies casinos[/url]