Kristof Retezár

Under hot and humid conditions, "Fontus" claims to "make" 17 ounces of water in an hour.

Imagine taking a brutal cross-state bicycle ride without once stopping to top off your water supply. That thirsty-sounding trek could become a comfortable reality one day thanks to Kristof Retezár, an Austrian designer behind an incredible, self-filling water bottle.

Retezár's "Fontus" system, which is competing for a James Dyson Award, is a sleek, two-piece contraption that attaches to a bike's frame. When a cycle is in motion, air is funneled into the top holster and distributed over a "condensing structure." A solar-powered cooling element then turns it into moisture that drips down a pipe into a detachable water bottle. (Any kind of half-liter PET bottle will work.)

Under hot and humid conditions, "Fontus" can allegedly produce about 17 ounces of agua, just about enough to sustain a sweaty cyclist. But Retezár sees broader uses for his machine, wanting to put it to use in regions where fresh water is scarce. Those places are shown inside the circles on this map, which also shows in darker red where meteorological conditions make the device most efficient:

(Kristof Retezár)

Here's the designer explaining his two-pronged plan for "Fontus":

Fontus can be applied in two different areas. Firstly, it may be interpreted as a sporty bicycle accessory. Useful on long bike tours, the constant search for freshwater sources such as rivers and gas stations can cease to be an issue since the bottle automatically fills itself up. Secondly, it might be a clever way of acquiring freshwater in regions of the world where groundwater is scarce but humidity is high. Experiments suggest that the bottle could harvest around 0.5 L water in one hour's time in regions with high temperature and humidity values.

(Kristof Retezár)

H/t Gear Junkie

About the Author

Most Popular

  1. Smoke from the fires hangs over Brazil.
    Environment

    Why the Amazon Is on Fire

    The rash of wildfires now consuming the Amazon rainforest can be blamed on a host of human factors, from climate change to deforestation to Brazilian politics.

  2. An aerial photo of downtown Miami.
    Life

    The Fastest-Growing U.S. Cities Aren’t What You Think

    Looking at the population and job growth of large cities proper, rather than their metro areas, uncovers some surprises.

  3. a map of London Uber driver James Farrar's trip data.
    Transportation

    For Ride-Hailing Drivers, Data Is Power

    Uber drivers in Europe and the U.S. are fighting for access to their personal data. Whoever wins the lawsuit could get to reframe the terms of the gig economy.

  4. Transportation

    When a Transit Agency Becomes a Suburban Developer

    The largest transit agency in the U.S. is building a mixed-use development next to a commuter rail station north of Manhattan.

  5. Maps

    The Children’s Book Map That Led Me Out of Depression

    As a child, I loved the fantastical lands from The Phantom Tollbooth. As a troubled college student, I used them as a roadmap to self-acceptance.

×