One Tap Has Saved Water Across India For 90 Years. An Insurance Officer Built It

If you’ve travelled by train in India, you have almost certainly used this invention.  You are on an Indian Railways train, somewhere between stations, and you step into the washroom to wash your hands. The tap does not turn or twist. You simply push it with a short, firm press and water flows.  But the moment you let go, it stops. No dripping, no running and no water pooling on the floor because someone walked away without closing it. Most people press it, wash their hands, and think nothing of it. But that small, spring-loaded tap has a name, a birthplace, and an inventor. It is called th...