Simbira ku birimwo Imice Urupapuro rw'itangiriro Ibiyaga binini Afrika Mpuzamahanga Imikino Video Urupapuro rw'itangiriro Ibiyaga binini Afrika Mpuzamahanga Imikino Video Inyabu zihuriye hehe no guhona, ubusumyi bw'urusaku canke Isaac Newton?
