No bigger than a postage stamp, this desalination chip may nevertheless solve many thirsty problems in the near future. Exactly what its name belies, it desalts undrinkable water, which will be a blessing in many remote areas.
Kudos to the researchers over at MIT for creating the desalination chip. Using little energy, it is capable of pumping four gallons of drinkable water per hour. It removes 99% of inhabiting harmful contaminants.