Our curator of transportation discusses early automobile racing with host Mo Rocca, who also shows us modern-day log home builders, the rental car scanner searching for scratches, and a device that transforms any bicycle into an e-bike.

Our curator of agriculture & the environment shares the history of mechanized tomato harvesting with host Mo Rocca, who also shows us a soft serve ice cream maker for your countertop, the webcam that's revolutionizing video calls, and building a better mousetrap.