Coating keeps solar cells cool in hot sun

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Every time you stroll outside you emit energy into the universe. Heat from the top of your head radiates into space as infrared light. Now engineers have exploited this basic phenomenon to develop a technology...

Heat makes 3D-printed box fold itself up

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Scientists are using a new 4D technology to create complex self-folding structures. The researchers used smart shape-memory polymers (SMPs) with the ability to remember one shape and change to another programmed shape when uniform heat is applied....

‘Swiss Army knife’ helps turn algae into biofuel

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Scientists have figured out a way to streamline the molecular machinery that turns cyanobacteria—also known as blue-green algae—into biofuels. They fabricated a synthetic protein that not only improves the assembly of the carbon-fixing factory of cyanobacteria,...

Sleepy teens wake at night to check social media

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More than one in five teenagers say they “almost always” wake up during the night to look at or post messages on social media, according to a new report. More than a third of 12-...

3D-printed ‘edge detector’ sorts sound waves

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Scientists have developed a new method to differentiate very weak and short sound waves from longer ones. When used in acoustic imaging, the technology makes it possible to detect only the outline of objects. Reverberated...

Less may be more for virtual museum visitors

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Too many special features can actually get in the way of enjoying a virtual museum exhibit online, according to new research. “What this study suggests is that, just like curators need to be coherent in the...

Cameras on wings join ecology ‘toolbox’

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Caribou in Greenland inspired ecologist Jeff Kerby to turn to drones. Caribou can travel long distances, even when they have settled onto their summer calving range, and Kerby found it challenging to track them...

Want to Convert Your Old Bicycle to a Modern E Bike? Here’s How!

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A lot of people would love to own an e bike, or electronic bike. However, these things are incredibly expensive. Luckily, however, you can now also purchase an e bike conversion kit, which means...

Engineers dare others to build a better terahertz multiplexer

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Scientists and engineers have only recently started exploring the potential of terahertz waves for a new wireless network that can deliver data up to one hundred times faster than today’s cellular or Wi-Fi networks. Now...

For better antennas, add this ‘smart’ material

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Scientists are manipulating a material known as vanadium dioxide, or VO2, and making it useable at a size barely visible to the naked eye. “My research team works on integrating smart materials in small devices...
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