Upside-Down Wooden Spinning Top | Summer Stripes robots & outer space and Al-Jazari’s famous 12th-century elephant

and Al-Jazari’s famous 12th-century elephant clock

How deep is the ocean

Each set contains 6 hills

Players will learn more about all of their favorite animals and also some new ones with the included booklet

The steel ball inside can move freely between the acrylic pieces

Upside-Down Wooden Spinning Top | Summer Stripes robots & outer space and Al-Jazari’s famous 12th-century elephantThis "Upside Down" spinning top,often referred to as the Tippe Top, has a rather unique quality. It actually turns itself upside down and spins on its stem all by itself! Originally patented back in 1891 by Helene Sperl of Germany, Danish engineer Werner Ostberg created his own version in 1950. His inspiration came from a visit to South America where he had seen locals playing with a small, round fruit. When they turned it by the stalk, much like an