There’s No Evidence That Vitamin-D Prevents Coronavirus

To protect himself from COVID-19, Dr. Anthony Fauci has long said he’s skipping hugs and handshakes, wearing a mask, and staying off of planes. Last week, he acknowledged adding another step to protect his health: taking supplements of vitamin-D.

“If you are deficient in Vitamin-D, that does have an impact on your susceptibility to infection,” Fauci, head of the National…

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The IRA Is Our Best Shot at Tackling Climate Change—But Only If We Don’t Squander It

I grew up watching Schoolhouse Rock, the animated shorts that educated American children of the seventies while we zoned out in front of the TV. The most memorable segment was the one where an adorable singing bill—literally a piece of paper rolled up and tied with red ribbon—started out bored and neglected on the steps of the U.S. Capitol. When he finally made it through the many s…

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A Leonardo da Vinci Painting Just Sold for $450 Million. Here’s How Experts Figured Out It Was Real

For a painting worth nearly half a billion dollars, Leonardo da Vinci’s Salvator Mundi is far from perfect.

The 500-year-old portrait of Jesus Christ has a shady past that includes ownership by King Charles I, a 160-year disappearing act and a sale for only thousands of dollars just 12 years ago.

It is damaged and was heavily repainted, then restored. And at least one …

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This Group Is Finding New Ways to Recycle Old Wind Turbines

This spring, researchers at a quarry near Draperstown, Northern Ireland, undertook what amounted to a massively scaled up version of the type of science experiment you might see in a middle school classroom. Using a crane, researchers added huge concrete blocks—each 2,400 lbs.—to a footbridge to see how much weight it could hold. What was notable about the bridge, though, was that instead o…

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