Tonight's visual measurement video - some folks in Norway build a 4 meter (about 13 feet) tall light stick that responds to WiFi (wireless network) signals, and make light paintings of the variation in WiFi signal strength across various urban landscapes:
Read more about their project here.
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The biggest security threat to our nation, and others
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former British Secretary of Defense Liam Fox points out that debt is the
single greatest security threat facing the Western world.
Against a backgrou...
1 day ago
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