Washing machines, thrifty cavemen and rockets. Make of that what you will! Or subscribe to "members only" videos here on YouTube (https://www.youtube.com/anosensei/join) or follow me on Patreon (https://www.patreon.com/ano_sensei), and watch the complete video and other premium content. As always, if you would like subtitles in any language, let me know and I will add them! © All rights reserved