For everything from family to computers…
There are over 1 billion cars in the world, and the vast majority of them use batteries made from lead. As lithium batteries replace these old timers, eventually there may be many of the lead suckers sitting in landfills. Which is why MIT wanted to find a way to reuse them—by turning them into a new kind of solar cell. It’s surprisingly simple.
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One of the most helpless and frustrating moments as a parent is when our kids have irrational fears, and nothing we say seems to help them cope. It’s perfectly natural for a child to be afraid of the dark, of course, but how can we help them overcome these fears?
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The most valuable stamp in the world is a red smudge
, but the coolest postal payments just might be these itty bitty stickies from 1970s Bhutan. They’d legally get your letter where it needed to go, and play the country’s national anthem (yes, really!).
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A little blurry? Perhaps, but this is a three-second exposure taken from aboard the ISS. As astronaut Reid Wiseman points out, it "shows how crazy our atmosphere really is." [Reid Wiseman]
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With scads of set-top boxes and sticks on the market, you could just choose a basic TV and play the field. But if you like Roku enough to shack-up, HDTVs from TCL and Hisense powered by the Roku OS are finally available. You can access the usual…
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