Friday stuff from Debby . . .

13 Mainstream Products Originally Invented for Space Travel. Root bridges.

Greece has a new hero.

A logical extension of requiring motorcycle helmets was the bike helmet. Guess what’s next?

Parents, three kids set out from Kentucky on a five-person bicycle, heading for Alaska. New Taser stun gun can shock three at a time.

Choose Your Own Apocalypse.

Top ten comic book cities.

Invention Uses Mountain Dew for Fuel.

Hunting for the acid-spitting and lightning-throwing Mongolian death worm.

Aerial imagery shows precursor of ancient Venice.

Snuggies for dogs. Caution — video loads automatically.

How not to wash a car.

The story behind Van Halen’s banning of brown M&Ms.

Yale’s Medical Historical Library has a gallery of strange medical conditions.

Cure for swine flu, and more.

World’s oldest map: Spanish cave has landscape from 14,000 years ago.

If this isn’t real, please don’t tell me.

7 Really Nasty Diseases You Can Get From Animals.