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Posts Tagged ‘led’

I can’t think how many times I have heard someone say that people should harness the energy from workouts on treadmills, biking, or running. Finally, a couple of college students did just that.

Nicholas Nehamas, Latitude News, writes about the students’ innovative idea.

“The company, Uncharted Play, has designed a fully functional soccer ball called the SOCCKET which can power an LED light. One minute of kicking around this portable generator produces around six minutes of light. Children in developing countries without reliable sources of electricity can play their favorite game and then plug in the light to read, do homework, and help illuminate their homes. …

“More than a billion families around the world use kerosene lamps as their primary source of light because electricity is either unavailable or too expensive. But as well as being a serious fire risk, kerosene lamps also endanger the health of those who breathe their fumes. …

“The SOCCKET is one innovative alternative to kerosene. [Jessica Matthews, CEO and co-founder of Uncharted Play], explains that the ball contains a pendulum, or gyroscope-like device, inside it.

“ ‘As the ball rolls, the mechanism also rolls, harnessing kinetic energy and
and then storing it inside a simple battery,’ she says. …

“ ‘We weren’t trying to change the world,’ says Matthews. ‘By no means were we trying to do anything beyond not failing the class.’ ”

More.

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This morning on my walk I noticed a sign about energy-saving LED (light-emitting diode) street lamps. The sign is hard to read here, but it says that the LED lighting was provided by the Friends of Christopher Columbus Park. It also says that “the City of Boston is testing different types of LED lighting systems around the town and wants to know what you think.” Tell the City here.

The main reason I’m interested is that John is in the optics business, and his team is always working on LED, 3-D, and other optical projects beyond my ken. (I blogged about his Eastern European optical engineers here and here. John and Gregg tweet at OFH_John and gfavalora.)

And while we’re on the subject of optics, check out an article about “bizarre optical phenomena, defying the laws of reflection and refraction. …

“Cambridge, Mass. – September 1, 2011 – Exploiting a novel technique called phase discontinuity, researchers at the Harvard School of Engineering and Applied Sciences (SEAS) have induced light rays to behave in a way that defies the centuries-old laws of reflection and refraction.” They bend light. Kind of like a fun house mirror.

You can see what they are talking about here.

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