How Tech Works
Season 1
Ep 18. Solar Tunnel
- February 20, 2016
- 22 min
We travel to Brussels to check out a small army of solar tunnels running alongside the city's railway tracks - the largest collection of working panels in the world; Reporter and self-confessed 'Batman' Dan Riskin travels to China in search of these unique creatures. They may be ugly, but their weird-shaped faces are responsible for sonar capabilities.