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In the December 5 Issue:
- TABLE OF CONTENTS
- Climate might be right for a deal: Copenhagen negotiations will take steps toward a climate-stabilizing treaty
- Botanical Whales: Adventures in the Tortugas reveal that seagrass fields need saving too
- Breaking the Speed Limit: Studies examine physiology and technology to better foresee the ultimate edge of human performance
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Invisibility device
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This 1-centimeter-tall invisibility device uses metamaterials to bend microwaves around its center so that they reemerge on their original paths on the other side. David Smith of Duke University and his colleagues reported cloaking a tiny copper ring using this device in 2006.
Credit: Jack J. Mock, D. Smith Lab/Duke University
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