The complex technological processes involved in cooling the iconic Sydney Opera House. Plus, an insight into how Sheffield steel is transformed into a carpenter's handsaw, and the production of a microphone capable of picking up a whisper. |
||
Title: | Cooling of the building; Saws; Microphones | |
Air Date: | November 20, 2015 | |
Runtime: | 30 min | |
roystervi : Very stupid