The Best Physics Videos
The best videos about physics topics found on the web.
Pages
(Move to ...)
Home
Suggest other videos
Copyright infringement?
▼
Monday, 14 January 2013
Parsec - Sixty Symbols
Why do astronomers use parsecs instead of light-years? And what is parallax?
Other Sixty Symbols videos
No comments:
Post a Comment
‹
›
Home
View web version
No comments:
Post a Comment