Kezuroukai, Planing Competition Finals 2012

What a day First we were delighted by a madcap Uturn video that is probably fake, we learned there s such a thing as windless kite flying, and now we re learning that competitive wood planing is a thing. In Japan, the best wood planers gather each year to see who can shave the thinnest shaving off of a piece of wood. 9 microns A micron is onemillionth of a meter or onethousandth of a millimeter. For reference, the diameter of a red blood cell is 89 microns, a cloud water droplet is about 10 microns across, and an average human hair is about 100 microns across. How do you get such a thin shaving A really sharp blade. Like maybe a knife sharped with. 025 Micron Polycrystalline Diamond Spray (via Colossal)