Do you know pendulum movement ? I felt it with bowling ball !!! #heopop #bowling #rollercoaster #experiment [LIKED], [SUBSCRIBE] and [SHARE]!!! ●Heopop channel : http://goo.gl/pAHo88 ●HeopopLife channel : https://goo.gl/wEKBJb ●HoopopGames channel : http://goo.gl/upcwMZ ●Heopop's Instagram : http://goo.gl/tDS7WY ●Heopop's Facebook : http://goo.gl/vuVDQK