Science Duct tape decoded: the fascinating chemistry behind the ultimate fix-all (video) Mark Frauenfelder
explainer videos Beautiful 3D animation compares sizes of the 80 known moons of Jupiter with Manhattan Mark Frauenfelder
explainer videos Almost everything you want to know about wheels is in this 1966 explainer movie Mark Frauenfelder
explainer videos An entertaining video about reclaiming lithium batteries in discarded vape pens Mark Frauenfelder
australia Excellent 1966 Australian PSA on the switch from £sd to decimalized currency Mark Frauenfelder