The Sahara: Seen Wetter Days
This video page works best with Flash
This page works best if you have the current version of Adobe's Flash Player installed. Click on the image to the left to install the player.
This video page works best with Flash
This page works best if you have the current version of Adobe's Flash Player installed. Click on the image to the left to install the player.
Did you know that the Sahara Desert used to be green? Farouk El-Baz, the director for the Center of Remote Sensing at Boston University, explains how the Sahara's sandy dunes were formed. We caught up with El-Baz at the annual meeting of the American Association for the Advancement of Science in Boston. Music by Knife Crazy. Interview by Shumin Ma and Ira Flatow. Produced by Flora Lichtman. Viewed 2184 times.
SciFri on Facebook
SciFri on Twitter
SciFri in Second Life![$stillmorevids[storys].alttext](imagecache/bluemarble_jpg_4fb25764b36a7e745a2fbc2dffb0df42.jpg)
Creating Earth
![$stillmorevids[storys].alttext](imagecache/odetoice_jpg_cb8bbfc9d14edc172b96247a65d79520.jpg)
What's So Cool About Frozen Water?
![$stillmorevids[storys].alttext](imagecache/fastmantis_jpg_e0cabb5d5521eaa6587bbd5cc1ccff5c.jpg)
Mini Speed Demons
![$stillmorevids[storys].alttext](imagecache/bubblecomp_jpg_1a7d3b57725bcd81563d1d64bed7898e.jpg)
Computer Of Bubbles
![$stillmorevids[storys].alttext](imagecache/levitation_jpg_c50f45794b757058dfa099006255206d.jpg)
What Happens When You Levitate Flies?
![$stillmorevids[storys].alttext](imagecache/paperflyer_jpg_9c4f16515994faf3aa85dc0021f8ef57.jpg)
Taking Paper Airplanes To The Next Level
![$stillmorevids[storys].alttext](imagecache/jumprope_jpg_1b1f87f532b2b830461bcef2e5baa308.jpg)
Giving Jump Ropes A Workout
![$stillmorevids[storys].alttext](imagecache/pigeon_jpg_2d9ec73251e4956040f3de55ea767dc2.jpg)
Glorious Footage Of ... Pigeons?
![$stillmorevids[storys].alttext](imagecache/giantpumpkin_jpg_af6002364bd8a946237f1ab05807360f.jpg)
Behold the 1000 Pound Pumpkin
![$stillmorevids[storys].alttext](imagecache/balloonatic_jpg_9cdd4ea6db804bcd9a5e3502a7fa3982.jpg)
Meet The Balloonatics
![$stillmorevids[storys].alttext](imagecache/imperial_jpg_655038fbff7d7e51508bdfa26b154e7b.jpg)
The Hunt For A Vanishing Woodpecker
![$stillmorevids[storys].alttext](imagecache/hawkmoth_jpg_110675271d36aa6d0796b619e5c5f6a6.jpg)
When Is A Moth Like A Hummingbird?
![$stillmorevids[storys].alttext](imagecache/briangreene_jpg_cd8c983321e6d273ab8b8578fa4a76b4.jpg)
Desktop Diaries: Brian Greene
![$stillmorevids[storys].alttext](imagecache/pumpkincarve_jpg_348dfafad25d49f0561bede34e88045c.jpg)
Geek My Pumpkin
![$stillmorevids[storys].alttext](imagecache/spaceegg_jpg_a3f6d7e91d6e913911b26a0faef719ae.jpg)
Spinning Eggs In Space
![$stillmorevids[storys].alttext](imagecache/flame3d_jpg_0eb0c00ae555296ff435ec415453c98c.jpg)
3D Up In Flames
Subscribe to our Video Podcast
If you use iTunes, use this link to subscribe. If you use another podcasting program, give it this address.Elsewhere on Sciencefriday.com
Explore More
- No related categories found
Most Viewed Videos
Your Stuff
Got some science you want to share? We're looking for your science-related audio, video, link suggestions, and story tips. - Read more -Search the Site
