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What the Heck Is This?

Hint: Today is Cinco de Mayo.

Hint 2: This is not a sponge, but having one nearby can sometimes be handy.

The image is the foam on a glass of beer. What's this got to do with science, you ask? For starters, the science behind the head on a beer is really cool — Guinness uses nitrogen to assist in making that thick, gorgeous foam. And, heck, beer may have lubricated the very rise of civilization by being the main goal of domesticating grain in the Stone Age, researchers say. It would be about 11,425 years later when beer was finally put in cans.

Not that anyone will drink their beer in moderation today, but it's worth noting that (in moderation) beer can be good for your bones.

Got a strange or interesting photo related to science, nature or technology? What the Heck, send it to meand maybe I'll use it. And you follow me on Twitteror Facebook.

(Image credit: Dreamtime)
Robert Roy Britt
Rob was a writer and editor at Space.com starting in 1999. He served as managing editor of Live Science at its launch in 2004. He is now Chief Content Officer overseeing media properties for the sites’ parent company, Purch. Prior to joining the company, Rob was an editor at The Star-Ledger in New Jersey, and in 1998 he was founder and editor of the science news website ExploreZone. He has a journalism degree from Humboldt State University in California.