Erosion demonstration: Comparing grass, dead leaves, and soilRion NakayaFebruary 11, 2021February 16, 2021
Paper airplane aerodynamics explained by a world record-setting designerRion NakayaDecember 15, 2020December 15, 2020
Is this the longest simple electric train track in the world?Rion NakayaDecember 1, 2020December 3, 2020