Curated Video
New York City Scientists Are Exploring History Through Tree Rings
Timber samples are giving scientists a look into climate conditions a tree has experienced in its lifetime.
Curated Video
Tourism booming in the offical land of the Hobbit
AP Television
Near Turangi, North Island, New Zealand, 10th November 2010
1. Various of mountains, lake in foreground
2. Close up of mountain top
3. Various of mountains which were the setting for Mount Doom
4. Various of lake shore
5....
Khan Academy
Khan Academy: Organic Chemistry Naming Examples 2
Find organic chemistry naming examples involving branching and rings [10:22]
PBS
Pbs Learning Media: Crash Course Astronomy: Saturn
Saturn is the crown jewel of the solar system, beautiful and fascinating. [12:12]