PhiTOP: Spinning aluminum top shaped like an egg.

PhiTop Physics Egg for Science Geeks

The PhiTOP is a 21st century kinetic toy with a unique mathematical shape. Spin it fast and it seems to defy gravity as it stands upright on its

PhiTOP

🔬#MESExperiments 32: Comparing Tippe Top, Phi Top, and Gyroscope

PhiTOP: Spinning Aluminum Top Spin PhiTOP and watch it go on

The PhiTOP, Gyroscopes & Tops: Educational Innovations, Inc.

PhiTOP: Spinning aluminum top shaped like an egg.

PhiTOP Stress Relieving Ellipsoid Spinning Top Physics India

PhiTop Physics Egg for Science Geeks

Spinning Tops for Kids - Tippy Tops Flip Upside Down