A brief history of the Middle East

Flash animation that summarizes thousand of years in a couple of minutes.

The reactivity of alkali metals

Back in my school days, our favorite science video was one from the BBC that displayed the increasing reactivity of the alkali metals as you descend the periodic table. Well, that video has now been replaced by the folks at Brainiac.

Update: Apparently the Caesium reaction may have been faked. Boo.




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