Why does the "Peace and love" sign look like ...

The clouds we see in the sky seem rather light, almost like absorbent cotton. However, being filled with water and ice, these gigantic suspended masses weigh - in reality - up to several tons. Don't be fooled by appearances, the clouds that float above your heads are more like an ...  Afficher plus

Long before Magellan completed the first circumnavigation of the globe, in the 16th century, ancient Greek scientists had demonstrated, by simple observation, that the Earth was round, or rather spherical. Of course, this did not prevent some people from believing that our planet ...  Afficher plus

The peace sign is one of the most globally recognized symbols around today, but it’s only a few decades old. And it wasn’t the hippies who created it, it was a group of Brits dedicated to nuclear disarmament in the 50s.See omnystudio.com/listener for privacy information. 

Though it started as a symbol of nuclear disarmament, the peace sign has grown to apply to (and be applied to) all kinds of things -- but the creator didn't mind; he'd hoped it'd take off. Learn the history of the peace sign in this episode of BrainStuff. Learn more about your ad ...  Afficher plus

There are symbols all around us that we take for granted, like the lightning strike icon, which indicates that something is high voltage. Or a little campfire to indicate that something is flammable. Those icons are pretty obvious, but there are others that aren't so straightf ...