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Tag Archives: than

Amazon River no younger than 9 million years, new study shows

Researchers from the University of Amsterdam (UvA) and the University of Brasilia (Brazil) have determined the age of the formation of the Amazon River at 9.4 to 9 million years ago (Ma) with data that convincingly refutes substantial younger estimates. Their results are published as early view in the journal ...

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Keeping Fentanyl Out of the US Will Take More Than a Wall

Last night, President Donald Trump told Congress that by building a big wall along the Mexican border and deporting illegal immigrants, he’ll improve America’s economy and keep illegal drugs off the streets. “We will stop the drugs from pouring into our country and poisoning our youth,” Trump said. “And we ...

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Old-Guard Archivists Keep Federal Data Safer Than You Think

At least twice a day, the data recorder on board NASA’s Lunar Reconnaissance Orbiter beams images to a station in White Sands, New Mexico. That data gets copied to the Goddard Space Flight Center in Maryland, and then copied again to computers at Arizona State University in Tempe. Two other ...

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Modeling a Pendulum’s Swing Is Way Harder Than You Think

A basic pendulum is a mass at the end of a string that swings back and forth. It seems simple, and it appears in most introductory physics textbooks. But it’s not a trivial problem to solve for the motion of this mass on a string. Traditionally, the introductory view of the pendulum is to ...

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Human-Induced Climate Change Has Been Going On Longer Than You Think

This story originally appeared on the Guardian and is part of the Climate Desk collaboration. Continents and oceans in the northern hemisphere began to warm with industrial-era fossil fuel emissions nearly 200 years ago, pushing back the origins of human-induced climate change to the mid-19th century. The first signs of warming from the ...

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