Six Simple Machine Project Using All Six Machines - Rube Goldberg Tim Luft 0:40 12 years ago 701 124 Скачать Далее
Ray's Simple Machine Project- The Cereal Dispenser Vanessa Perez 0:26 9 years ago 43 020 Скачать Далее
Science Projects | Escalator Working Model from Cardboard Beginner Life 5:06 1 year ago 177 147 Скачать Далее
TOP 30 Amazing Mini Business Machine From Cardboard ! Mill Machine IDEA Expert Eye 18:04 1 year ago 1 003 251 Скачать Далее