Cloud Nine (tensegrity sphere)

Cloud Nine (also known as a tensegrity sphere) is a structure made of metal and plastic that looks like a big ball. Inside the metal and plastic structure, there are metal rods connected together to make something like the frame of a dome. Connected to these metal rods are plastic pieces that hold them together. This makes the frame strong and stable, like a geodesic dome. The metal rods are connected in such a way that when you push or pull on one side of the sphere, the other side reacts. So if you push on one side, the other side will move too! This is called tensegrity and it's what makes the Cloud Nine structure so strong and stable.