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No GPS? A DIY Radio Transmitter Can Help You Navigate

Suppose you traveled back in time—say 40,000 years into the past—and then you got stuck. What would you do? How would you rebuild all the stuff that you like? That’s the premise of the book How to Invent Everything: A Survival Guide for the Stranded Time Traveler, by Ryan North. ...

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New, highly stable catalyst may help turn water into fuel

Breaking the bonds between oxygen and hydrogen in water could be a key to the creation of hydrogen in a sustainable manner, but finding an economically viable technique for this has proved difficult. Researchers report a new hydrogen-generating catalyst that clears many of the obstacles — abundance, stability in acid ...

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Flattened Fluids Help Scientists Understand Oceans and Atmospheres

Turbulence, the splintering of smooth streams of fluid into chaotic vortices, doesn’t just make for bumpy plane rides. It also throws a wrench into the very mathematics used to describe atmospheres, oceans and plumbing. Turbulence is the reason why the Navier-Stokes equations—the laws that govern fluid flow—are so famously hard ...

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Parents may help prep kids for healthier, less violent relationships

Warm, nurturing parents may pass along strategies for building and maintaining positive relationships to their kids, setting them up for healthier, less-violent romantic relationships as young adults, according to researchers. Researchers found that when adolescents reported a positive family climate and their parents using more effective parenting strategies — like ...

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Extremely fast dives help peregrine falcons maneuver to catch agile prey

Computer simulations of peregrine falcon attacks show that the extreme speeds reached during dives from high altitudes enhance the raptors’ ability to execute maneuvers needed to nab agile prey that would otherwise escape. Robin Mills and colleagues of the University of Groningen, Netherlands, and Oxford University, UK, report this discovery ...

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