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Science

First Black Hole For Light Created On Earth 244

An anonymous reader writes "An electromagnetic 'black hole' that sucks in surrounding light has been built for the first time. The device, which works at microwave frequencies, may soon be extended to trap visible light, leading to an entirely new way of harvesting solar energy to generate electricity. A theoretical design for a table-top black hole to trap light was proposed in a paper published earlier this year by Evgenii Narimanov and Alexander Kildishev of Purdue University in West Lafayette, Indiana. Their idea was to mimic the properties of a cosmological black hole, whose intense gravity bends the surrounding space-time, causing any nearby matter or radiation to follow the warped space-time and spiral inwards."
Image

Ball And Chain To Force Children To Study Screenshot-sm 346

You haven't tried everything to get your kids to study until you've tried the Study Ball. The Study Ball is a 21-pound prison-style device that locks onto your child's leg and only unlocks after a predetermined amount of study time has passed. The homework manacles can't be locked for more than four hours, and come with a safety key. The product website states, "Quite often, students who are having problems concentrating tend to get up every ten minutes to watch TV, talk on the phone, take something out of the fridge, and a long list of other distractions. Were they to dedicate all this wasted time to studying, they would optimise their performance and have more free time available. Study Ball helps you study more and more efficiently." Stop Teasing Your Brother Pepper Spray coming soon.

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