This beautiful specimen was built and invented by Lee Krasnow http://pacificpuzzleworks.com/ https://www.instagram.com/pacificpuzzleworks Look for my "The Topsy Turvy Top" video on https://www.youtube.com/channel/UClq42foiSgl7sSpLupnugGA to learn more about it and how it works!! #physics #toy #physicstoy #spinning #puzzle #gyroscope #stem #stemtoy