On many Japanese toilets, the hand wash sink is attached so that you can wash your hands and reuse the water for the next flush. Japan saves millions of liters of water every year doing this.1yr ⋅ Wavey5840 ⋅ r/DidntKnowIWantedThat
World’s largest aircraft prepares to take off. Airlander 10, a spectacularly huge, helium-pumped aircraft, is unveiled fully assembled for the first time1yr ⋅ Wavey5840 ⋅ r/absoluteunit
