Understanding the human body is a team effort. That's where the Yachtel group comes in.

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To learn more about Yachtolt, visit yawcult.co.

.jp.j. That's Y-A-K-U-L-T.C-O.J-P. When it comes to a guide for your gut, count on Yacolt. Happy Monday listeners.

For Scientific American Science quickly, I'm Rachel Thalpin.

I was out of the office taking a little break last week, so I didn't have the chance to write and record our usual news roundup.

Instead, I thought it would be fun to dive back into the Scientific American archives for the first time in a while.

Let's see what Siam was up to 100 years ago.

The April 1925 issue of Scientific American had more in common with our coverage in 2024 than you might expect.

99 years apart, everyone was going gaga over eclipses.

While the January 1925 total solar eclipse didn't quite hit the same swath of the U.S. as the one we got to enjoy last year,

it did treat folks in Minnesota, Wisconsin, Michigan, Pennsylvania, New York, New Jersey, Connecticut, Rhode Island, and Massachusetts to totality.

According to Siam's April 1925 article on the subject, the weather was pristine for eclipse viewing.

The article also details some apparently very eerie visual effects that showed up during the eclipse.

Apparently, some folks in the path of totality saw patterns of dark squirming bands on the ground during the last moments of sunlight.

Indeed, the article states, there was hardly anything more weird in the whole unearthly sequence than the appearance in the growing obscurity of these

thousands of writhing serpents of shadow. The 1925 writer helpfully explains what scientists still think

is behind these illusory snakes. Apparently, they were the shadows cast by streaks of air

with different densities. As anyone who's ever gotten to experience an eclipse knows, the shadows

cast by the sun sharpen as the light source narrows in scope. So while we don't usually see the

squiggles of warmer and cooler drafts of air refracting different amounts of light,

...