Uncategorized
- Math
Cells take on traveling salesman problem
With neither minds nor maps- chemical-sensing immune players do well with decades-old mathematical problem, a computer simulation reveals.
- Health & Medicine
Body & Brain
Food tastes less fatty to overweight people, plus an itch protein and thirsty rats in this week’s news.
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Genes & Cells
The genes for caffeine cravings, plus rare variants and shaping eyes in this week’s news.
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Hanging in the balance
What is the fate of the universe?
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Out of the fabric
Are space and time fundamental?
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Strung together
Is there a theory of everything?
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In the dark
What is the universe made of?
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Pre-Bang branes and bubbles
What happened before the big bang?
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Cosmic questions, answers pending
Special section
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Book Review: The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos by Brian Greene
Review by Tom Siegfried.
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Cosmic Challenge: The Ultimate Observing List for Amateurs by Philip S. Harrington
This guide to observing the heavens beckons backyard astronomers to find 187 targets using instruments ranging from binoculars to monster scopes. Cambridge Univ. Press, 2011, 469 p., $45.
