Clip
Using Umbrellas for Portable Shade
1:04:54 - 1:08:59 (04:05)
The guest speaker talks about using umbrellas as portable shades, especially for hikers in the west, and how modifying the umbrella to reflect light can make it cooler.
The guest speaker talks about using umbrellas as portable shades, especially for hikers in the west, and how modifying the umbrella to reflect light can make it cooler.