@thetruequantum: the lishi tool can decode and manipulate a lock while showing how the internal pins react. the “perpetual motion” fountain looks like it runs forever, but perpetual motion is physically impossible. denim distressing creates the worn and ripped effect directly on jeans. steel pipes are shaped and formed through an industrial production process. credit: PocketToolWarehouse (YouTube) credit: @keyboytech credit: @arhannmalik1154 credit: @marryzhang67 #engineering #technology #innovation #machines #Science