Rubber band-powered ornithopter (aircraft that flies by flapping its wings)3yr ⋅ VotiveZeus ⋅ r/mechanical_gifs
In 1930 the Indiana Bell building was rotated 90° all while 600 employees still worked there. There was no interruption to gas, heat, sewage, or the telephone.3yr ⋅ VotiveZeus ⋅ r/mechanical_gifs