Since the 12th Century, Japanese artisans have been employing a construction technique that uses just one simple material: wood. Rather than utilize glue, nails, and other fasteners, the traditional art of Japanese wood joinery notches slabs of timber so that the grooves lock together and form a sturdy structure. Yamanashi-based carpenter Dylan Iwakuni demonstrates this process in the endlessly satisfying video above, which depicts multiple styles of the angular joints and how they’re slotted together with the tap of a mallet. More Read more