S4·E14 – Sound Tunnels
2018-02-17 • 30 min
Host Mo Rocca shows us tunnels of sound with directional speakers; how silver thread has put an end to smelly clothes; the first modern copying machine; and, an innovative manual clothes washer.
2018-02-17 • 30 min
Host Mo Rocca shows us tunnels of sound with directional speakers; how silver thread has put an end to smelly clothes; the first modern copying machine; and, an innovative manual clothes washer.
