What does your brain have in common with a scrunched-up piece of paper ... by comparing its wrinkles and grooves to the creases in a paper ball. For the past 10 years, neuroscientist Suzana ...

That’s because they study the physics of crumpled balls of paper, which contain deeper mysteries than you might expect. Take a sheet of A4, scrunch it up and throw it at a colleague. You’ll ...

Once scrunched, a paper ball is more than 75 percent air yet displays surprising strength and resists further compression, a fact that has confounded physicists. A report in the February 18 issue ...

If the paper stays in its ball, it can likely be recycled. If it bounces back open, it can’t be recycled. Simple, right? Bonus: if you have a cat, those scrunched up bits of paper make great toys.

So how do you do it? Well, the clue is in the name. Just take a piece of the wrapping paper and scrunch it into a ball in your hand. Next, open your hand and take a look. If the paper stays in a ...

How do you check? Try to scrunch up the paper into a ball. If it scrunches, and stays scrunched, it can probably be recycled, external. And if you've bought recycled wrapping paper in the first ...