Jessamyn West on Bridging the Digital Divide

Jessamyn West talks about traveling the country helping users utilize the full potential of Web 2.0.


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Cornell engineers create artificial material with 3 key traits of life

An innovation may lead to lifelike self-reproducing and evolving machines.

Shogo Hamada/Cornell University
Surprising Science
  • Scientists at Cornell University devise a material with 3 key traits of life.
  • The goal for the researchers is not to create life but lifelike machines.
  • The researchers were able to program metabolism into the material's DNA.
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After death, you’re aware that you’ve died, say scientists

Some evidence attributes a certain neurological phenomenon to a near death experience.

Credit: Petr Kratochvil. PublicDomainPictures.net.
Surprising Science

Time of death is considered when a person has gone into cardiac arrest. This is the cessation of the electrical impulse that drive the heartbeat. As a result, the heart locks up. The moment the heart stops is considered time of death. But does death overtake our mind immediately afterward or does it slowly creep in?

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Videos
  • A huge segment of America's population — the Baby Boom generation — is aging and will live longer than any American generation in history.
  • The story we read about in the news? Their drain on social services like Social Security and Medicare.
  • But increased longevity is a cause for celebration, says Ashton Applewhite, not doom and gloom.