Playback serverIf a title won’t play, switch servers.
Season 21 · Episode 10

9.521mJune 6, 2013
Medical scans and computer models guide the production of customized knee-replacement components designed for an individual patient. Steel strips are cut, heat-treated and curved into vehicle leaf springs; harvested lavender is steam-distilled to extract its essential oil; and metal blanks are formed into rivets alongside the tools used to install them.