Joe and Allan dig into the invention of sheet metal shears then explore the idea of portable nuclear reactors taking the place of massive diesel generators on Earth and Mars.  Next, they get into the fall home maintenance routine of cleaning up from Halloween and checking the house for any minor repairs that need to be completed before winter sets in. Then, they are joined by Dmetrieve Mahan to discuss the process of becoming an empty nester only to get re-nested by family members and their children and pets.