Feature
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Unsure Minds
A controversial set of studies indicates that monkeys and dolphins know when they don't know the answer to certain tasks, an ability that presumably relies on conscious deliberations.
- Tech
Virtual Nanotech
With computers becoming ever more powerful, researchers are simulating nanoscale materials and devices down to the level of atoms and even electrons.
- Earth
Danger on Deck?
The Environmental Protection Agency no longer allows residential installation of pressure-treated lumber and recommends the application of sealant to prevent leaching of carcinogens out of existing lumber structures.
- Health & Medicine
Telltale Charts
Overturning a basic tenet of conventional wisdom in cardiology, new research suggests that more than half the people who develop heart disease first show one of the warning signs of smoking, having diabetes, or having high blood pressure or cholesterol.
