gravity
Science
How Reality May Be a Sum of All Possible Realities
The most powerful formula in physics starts with a slender S, the symbol for a sort of sum known...
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Science
How Far Would You Have to Tunnel Underground to Lose 20 Pounds?
The new book from Randall Munroe is finally out— What if? 2 . Surely you know Munroe from...
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Science
The Physics of Going Fast—but Not Too Fast—on a Giant Slide
You might have seen some of the viral videos of this giant steel slide at Belle Isle Park in...
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Science
NASA Delayed the Psyche Launch. Here’s Why That’s a Big Deal
For years, Lindy Elkins-Tanton had been looking forward to blasting a probe to the metallic asteroid Psyche, which is...
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Science
Many Astronauts Never Recover all of their Bone Density after Returning to Earth
In his book, Endurance, astronaut Scott Kelly described the arduous task of readjusting to life on Earth after spending...
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