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Khan Academy
Month: December 2010
A Space Wardrobe
Photographs and X-ray images of spacesuits in all their complexity.
Speed Fly
Mt. Superior Speed Fly.
Periodic Table Makeover
The atomic weights of 10 elements – ones you’ve actually heard of – need to be expressed as an interval (or range) rather than a static number.
Animal Voiceovers
British Animal Voiceovers.
Stop the Spin
What causes bad weather and natural disasters? The spin of the earth.
Snowy Day
Alone
Simply to exist as a normal human being requires interaction with other people.
Electric Car Noisemakers
Although the relative silence of electric cars and hybrids was originally touted as one of their key beneficial attributes, alarmists have been less than enamored with the perceived difficulty involved in hearing one coming.
Ants
Natures Secret Power.