Here's how to get more bounce from a normal tennis ball - buddy it up with a heavier ball for twice the impact. Hold a ball in each hand and decide which ball weighs more (has greater mass). It might ...

Introduction How many ball sports can you name? How many of those have several balls at once in the game? Almost none, right? Games that do use several balls at a time most likely use balls of the ...

When you walk into Emilie Mena's classroom, you may think it's a yoga studio at first. But it's not. It’s a typical elementary school classroom with desks, a white board and books. However, instead of ...