Baby Making Machine
Nobita and Shiuzuka see Gian and Suneo building a model ship in their backyard. Nobita wanted to join, but was rejected because they believed him to be clumsy. Nobita runs back home to build something better or so he claimed. Doraemon left a machine in Nobita's room with an explicit note to not touch and give to the delivery man from the future. The machine said it would create a lifeform, but it had a defect of creating a strong and more powerful race bent on controlling mankind. Doraemon return and somehow managed to end it.
Aired 13/07/1979EP 89 - Baby Making Machine
Doraemon
Nobi Nobita is a 4th-grade boy in Tokyo. One day, a round, blue cat-style robot (minus ears) pops up in his desk drawer. Nobita's great-great-grandson (or something) lives in the 22nd Century, but thanks to Nobita's mistakes, the entire family is living in poverty. To rectify this, Nobita's descendent is sent Doraemon back to the past, to help prevent Nobita from making mistakes. Of course this is a difficult task since Nobita is the weakest and least intelligent child in his class. Doraemon does, however, have a 4-dimensional pocket on his front, which contains cool gadgets from the future. With these toys, Doraemon will try to help Nobita. Unfortunately, Nobita also has the bad habit of misusing Doraemon's gadgets and landing himself in yet more trouble?
(Source: AnimeNfo)