جورج نيسن مخترع جهاز الترامبولين علي قمة هرم خوفو سنة 1977

In April 1977, George Nissen organized a group of U.S. gymnasts and trampolinists to go to Egypt for exhibitions and clinics. One of the highlights of the tour was the day spent bouncing on trampolines at the base of the pyramids