e93: Stop Washing Your Children So Much!

The microbes that colonize us when we're in the womb and as infants have lasting impacts on our health later on. My conversation with Claire Arrieta, author of Let Them Eat Dirt.

Marie-Claire is the co-author with B. Brett Finlay of Let Them Eat Dirt: Saving Your Child from an Oversanitized World. 

After that, I talk about lego for farmers. 

And here's some photos of projects involving 1" sqaure aluminum: