A wilderness excursion can seem daunting, but for outdoor enthusiasts this only adds to the appeal. Because hikers need more water than they can carry, they purchase bottles with built-in filters so they can use water sources along the way. But the process of drinking from such a container is counterintuitive. Tipping the bottle does nothing. A thirsty hiker has…
A wilderness excursion can seem daunting, but for outdoor enthusiasts this only adds to the appeal. Because hikers need more water than they can carry, they purchase bottles with built-in filters so they can use water sources along the way. But the process of drinking from such a container is counterintuitive. Tipping the bottle does nothing. A thirsty hiker has…
