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, visit yawcp.co.j.jot.com.j. That's y-A-K-U-L-T-C-O-J-P.

When it comes to a guide for your gut, count on Yacol.

This is Scientific American's 60-second science. I'm Christopher in Taliatta.

How big is a helium atom?

Or maybe the better question is how small?

After an intricate game of particle jockeying,

physicists have now measured the radius of the helium nucleus,

and they've done it five times more precisely than before.

Why do that?

Well, atomic physicist Julian Crout, with the Max Planck Institute,

says these sorts of measurements can help refine our most basic ideas about how atoms work,

like the theory of quantum electrodynamics.

So in order to see where it might break down or where we could see a hint that there's something which we have missed so far,

we have to do very precise measurements.

But making those measurements was quite an undertaking.

First, Crout and his colleagues had to create a special flavor of helium,

subbing a particle called a muon for the elements usual to electrons.

Kraut says just getting a hold of the muons was tricky enough.

We create high energetic protons from a proton accelerator, and we shoot these protons on a target

...