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 yawcult.co.

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

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

Got a minute?

There's a scene in Blade Runner, Ridley Scott's sci-fi classic,

when Harrison Ford's character, Deckerd,

is about to interview Rachel, played by Sean Young,

to test whether she's a real human or a replicant.

It's too bright in here.

On cue, the Florida to ceiling windows dim, shading the room from the golden sunlight outside. It was a beautiful Hollywood effect when the movie came out in 1982, and now it may not be that far from reality,

because researchers at Harvard recently designed a material

that, with a shot of electricity, can transform a glass window from transparent to opaque in

less than a second.

The team built the window by sandwiching glass between two sheets of a transparent, balloon-like

rubber material, laced with silver nanowires. As is, the material is clear,

but apply voltage, and the nanowires are attracted to each other, ever so slightly across

the glass, which deforms those rubbery sheets, just enough to scatter light, causing the glass

to cloud up. They describe the device in the journal Optics letters. Study author Samuel

Sheehan, a materials scientist, says this smart glass is cheaper than others and uses minimal

...