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Secret Worlds: The Universe Within View the Milky Way at 10 million light years from the Earth. Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and finally, into the subatomic universe of electrons and protons.

Secret Worlds: The Universe Within - Interactive

Secret Worlds: The Universe Within - Interactive
Codex Sinaiticus - Συγγράματα σε ψηφιακή μορφή

TED: Ideas worth spreading

Melinda Gates and Bill Gates Why giving away our wealth has been the most satisfying thing we've done In 1993, Bill and Melinda Gates—then engaged—took a walk on a beach in Zanzibar, and made a bold decision on how they would make sure that their wealth from Microsoft went back into society. In a conversation with Chris Anderson, the couple talks about their work at the Bill & Melinda Gates Foundation, as well as about their marriage, their children, their failures and the satisfaction of giving most of their wealth away. TED: Ideas worth spreading