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

Researchers at Yachtolt have been delving into the secrets of probiotics for 90 years.

Yacold also partners with nature portfolio to advance gut microbiome science through the global grants for gut health, an investigator-led research program.

To learn more about Yachtolt, visitacolkot.co.j.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.

This is Scientific American's 60-second science.

I'm Christopher in Taliatta.

You've probably seen pictures of Greek villages where every house is painted bright white.

The paint reflects the intense sunlight of the Mediterranean, and it works pretty well to keep the houses from heating up in the sun.

But it doesn't actively cool them.

To understand why, consider what the white paint does.

Here's how optical scientist Xiaobo Yin of the University of Colorado describes it.

It's a mirror full of sunlight.

It's also a mirror for the radiation as well.

And it might seem like reflecting all those incoming rays would be a good thing.

But the benefit is limited, because what it really means,

Yin says, is that the houses, well, they don't release much energy. Release more energy, again,

in the form of infrared radiation, aka heat, and you effectively get free AC. So Yin and his colleagues

built a material that does exactly that. It reflects visible light, but it also emits infrared wavelengths, which gives it the power

to actually cool.

It's two layers, a top layer of polymer packed with glass beads just 8 microns across, so

...