Natural Selection
Frequent Fliers and Flame Retardants
A study in Sweden reveals that flame retardants designed to protect people show up in high levels inside airplane cabins, and in humans—including our columnist. Continue
How Smart Are You? The Answer's Here
For those who took the Portfolio.com “Brain Age” test, the company that ran the test shares some results on how smart you really are. Continue
My Brain Makes Me Nervous
M.R.I. scans reveal our fear of bosses and rivals, of saying something stupid, of taking chances—oh, and of lions, tigers, and bears. Continue
Will There Be Blood?
A flailing stem-cell company says it's invented synthetic blood. If so, it will mean a victory for stem cells. Continue
Desperate for a Cure
Dozens of companies are trying to come up with a cure for Alzheimer's disease; one announces a novel technique that reaps a whirlwind of publicity ... prematurely. Continue
A Quant's Quest
Having conquered Wall Street, hedge fund manager David E. Shaw takes up a real challenge: Unlocking the secrets of life. Continue
Game of Hearts
Predicting complex nuclear-attack scenarios used to be the, er, bomb in computer modeling. Now it's complicated human systems that test new drugs and forecast, in a first-ever test, one person's cardiac fate. Continue
Fuels of the Future
By focusing on corn-based ethanol and ignoring alternatives such as algae, Congress may make a mistake as big as one the Romans made two millennia ago. Continue
How Smart Are You?
The business of assessing cognition and memory is moving from testing brain-impaired patients to assessing healthy peoples' brains online. Continue
Starving Science
Congress makes a tepid attempt to boost federal funding for medical research and regulation to Bush's 2009 budget, but it's not enough. Continue
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500 Startups Hits New York