Weird & Wonderful: Japan's Exclusive Inventions that Will Amaze You: Weird & Wonderful: Japan’s Exclusive Inventions that Will Amaze You
yht1. Umbrellas with Moisture-Activated Color-Changing Prints What it is: an umbrella whose color changes when it rains RainStoppers created this color-changing umbrella, which, when wet, displays vibrant designs. Invented in…