Rafi Mehudar is one of this year’s Israeli Independence Day torch-lighters. 42 years after he invented the modern form of drip irrigation, it is still used by only 5% of the world’s farmers. But that technology is responsible for crops that feed over a billion people.

http://www.timesofisrael.com/israels-drip-irrigation-pioneer-our-tech-feeds-a-billion-people/