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Science beyond the bell curve

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QR Clock

Category: Clocks

Imagine activists altering a corporate billboard so that when customers snapped the QR code, they were taken to a YouTube video on climate change instead of an ad for the latest SUV.

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Scientists use WiFi network to see through walls

Category: General

Researchers have submitted a paper for publication (read preprint) detailing how to use WiFi to see through walls. The system works by measuring interference between nodes of wireless devices. When someone walks through the field, the change in resistance is...

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