Easy origami christmas decorations instructions. And the best thing about origami decorations and gifts is they are so cheap to make!
miércoles, 20 de julio de 2016
A Paper Plane Ready To Glide
A Paper Plane Ready To Glide A paper airplane falls down due to gravity and glides forward through the air at the same time. We’ll measure the glide ratio the ratio of the distance glided to the distance fallen. Material … Continue reading →