Few young people today can really appreciate what an incredible achievement the entire Apollo program was, the skill and expertise of the astronauts and everyone involved on the ground, the level of danger/risk, and the significance of it all.
Designed with slide rules.
Drawn on mylar with pencil.
Fabricated by high school graduates running manually controlled machine tools.
Yeah baby!
The lunar module (used in later missions) looks like it was put together with aluminum foil and duct tape....scary stuff....