A very useful invention that would be great in a survival scenario. As a cyclist, you probably no longer have to be afraid that you run out of water on a hot day . Its Fontus, A self-filling water bottle that turns air into drinking water. Kristof Retezár, a student at the university of vienna, Austria invented this amazing bottle.
It extracts humidity form the air and condenses it into drinkable water. Humid air flows into the device and hits a series of hydrophobic surfaces. The hydrophobic surfaces turn the water vapor into actual droplets.A small solar panel on the top of Fontus keeps a batter charged. It includes a filter at the top to keep dust and bugs our of the water.It can produce 0.5 quarts (0.5 liters) of water in 1 hour.