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Access to electricity is linked to reduced sleep

Blame smartphone alerts, constant connectivity and a deluge of media for our society's sleep deprivation. But the root cause of why we get less sleep now than our ancestors did could come down to a much simpler reason: artificial ...

dateJun 19, 2015 in Other
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Could we one day control the path of lightning?

Lightning dart across the sky in a flash. And even though we can use lightning rods to increase the probability of it striking at a specific location, its exact path remains unpredictable. At a smaller scale, discharges between ...

dateJun 19, 2015 in General Physics
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New app sheds light on phone usage

A year ago, Northwestern University PhD student John Rula accidentally left his smartphone in a taxi. After exiting the car, he checked his pockets multiple times only to find them empty. That's when the anxiety set in.

dateJun 17, 2015 in Software
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A new and game-changing magnetoresistance

More than 150 years ago, William Thomson, later Lord Kelvin, discovered the magnetoresistive effect. Today, this finding enables sensors to measure the rotational speed of a car wheel, and is also used in compass navigation ...

dateJun 16, 2015 in General Physics
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Graphene quantum dot LEDs

The first graphene quantum dot light-emitting diodes (GQD-LEDs), fabricated by using high-quantum-yield graphene quantum dots through graphite intercalation compounds, exhibit luminance in excess of 1,000 cd/m2.

dateJun 15, 2015 in Nanomaterials
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