If you could design the ultimate playground, what would it look like? How would it work? Be inspired by this article and the activity that we have for you! Dive into the physics behind these 6 simple machines to design your dream playground.
Clocks and watches are essential to everyday life! But how long have watches and clocks been around? Yi Xing created one of the first astronomical clocks powered by a water wheel! Learn about the history of clocks!