Uncategorized
- Physics
Light comes to halt again—in a solid
By stopping laser light pulses cold in a crystal, storing them, and then releasing them, physicists have achieved the same feat accomplished last year in gases, but this time in a more practical material.
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Unfertilized monkey eggs make stem cells
Scientists have for the first time obtained long-lived stem cells from monkey eggs stimulated to undergo parthenogenesis.
- Health & Medicine
Heart recipients add their own cells
Transplanted hearts incorporate muscle and blood-vessel cells from their new host, suggesting that the heart may regenerate its own tissue.
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Bug Watching
Crazy about insects? The Sonoran Arthropod Studies Institute in Arizona has a “Backyard Bugwatching” page with links to photos and articles focusing on a variety of insects and their diverse habitats.
