Episode 835
Gadget Years
Dick and Leo have talked about their time unit for gadgets called Gadget Year, although they can never remember how long it's supposed to be. When they first talked about the Audrey in Episode 120, they thought that a gadget year should be worth 25 human years.
Visible Man-Made Structure
In Episode 818, Leo talked about the Great Wall of China, and referred to the oft-repeated piece of trivia that it is the only man-made structure visible from space. Doug Snell, who by the way thinks the quality of the jingles brings the quality of the Daily Giz Wiz up to just acceptable, wants to debunk the myth. First of all, it's not just one wall, but a series of walls. Secondly the myth is simply not true. Depending on what one means by space and what distance from the Earth one is talking about, the Great Wall is either invisible to the naked eye, or one of many other objects visible to the naked eye. Check out space.com, and snopes.com for more debunking.