More footage of the meteor over Edmonton, Canada 11/20/2008.

Footage of a meteor entering the atmosphere over Edmonton, Canada 11/20/2008.

145 years ago on November 19 1863 President Abraham Lincoln gave one of the most famous speeches in American history.

Cartoon from Sesame Street using bubble gum to show math skills.

The processes of transcription and translation of protein synthesis.

Stages of Mitosis.

Atmosphere, Conditions, and discovering the history and general info on the red planet

Using infrared (IR) light pens and the Wii Remote, it is possible to create very low-cost multi-point interactive whiteboards and multi-point tablet displays. Johnny Chung Lee, Carnegie Mellon University. The software can be downloaded at http://johnnylee.net

Johnny Lee demos his amazing Wii Remote hacks, which transform the $40 game piece into a digital whiteboard, a touchscreen and a head-mounted 3-D viewer.

A mathematical parody of Fergie's Fergalicious. LYRICS

Annelies Marie "Anne" Frank (June 12, 1929 -- beginning of March, 1945) was a European Jewish girl (born in Germany, stateless since 1941, but she aimed to be Dutch as she grew up in the Netherlands) and who wrote a diary while in hiding with her family and four friends in Amsterdam during the...

We made this video because wiki web sites are easy to use, but hard to describe. We hope to turn you on to a better way to plan a camping trip, or create the next Wikipedia.

From 1973, an episode of Multiplication Rock (the first season of Schoolhouse Rock) complete with sponsorless opening and full Sunday credit roll. The song on the end credits is an instrumental version of "The Good Eleven".

Realtime video with closeups of the totality from Aspendos Theatre/Turkey

A Total Lunar Eclipse on Aug. 28, 2007 Seen fro... (more) Added: August 28, 2007 A Total Lunar Eclipse on Aug. 28, 2007 Seen from Kapiolani Park in Honolulu, Hawaii. Shot thru a telescope, every 5 minutes

Our classroom Hermit Crab, Harmony, changes its shell. An 8th grade student catches it on video on our holiday break! Thanks Dakota! Harmony changed shells, back and forth nine times, before she settled on the new bigger one.

Reef Balls are artificial reef modules placed in the ocean to form reef habitat.

How practical necessity off-times begats new inventions in history!

Time lapse movie of mold growing in a tea cup. The movie correspond to about 2 weeks of real time.

Time Lapse at its best!

Large wingless roach found on the island of Madagascar off the southern coast of Africa. (more)

Good Behavior and the Rangers Creed. Positive Behavioral Intervention and Supports (PBIS) in action at one school.

A useful guide for parents and teachers to assist children in sounding-out phonemes at home.

The Elements sung to Rock and Roll.

A music video for the elements.