ICYMI: Giant air purifier, true invisibility cloak and more

Blog sponsored by Engadget.com 19.9.2015 Comments Off on ICYMI: Giant air purifier, true invisibility cloak and more

Today on In Case You Missed It: A 23-foot tall HEPA filter that looks like a building is running in Rotterdam, costing $1,000 a year to operate while cleaning up to 1 million cubic feet of air per hour. Scientists at UC Berkeley have hit on the tec…

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