This new bike bottle fills itself with water

grist.org

2 pointsedoloughlin3 comments

> 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

I would have thought that would be not enough but a quick Internet Search suggests that 16oz/450ml is about the optimal intake per hour. Huh!

If you are bicycling for one hour in a hot and humid area, aren't you going to sweat about 0.5 L as well ?

(I am not a doctor!)

The links I found said it was at least that, possibly as many as 3L.

e.g. http://www.cptips.com/fluids.htm

> Under normal environmental circumstances, you will lose 1 - 2 liters of sweat per hour, and if the ambient temperature is high, this can be as high as 4 - 6 liters per hour.

But you apparently can only take in about 0.5L and process it safely.

e.g. http://www.hammernutrition.com/knowledge/hydration-what-you-...

> Dr. Tim Noakes collected data for ten years [and] showed that endurance athletes who consumed from 16-24 fluid ounces per hour (approx 475-710 milliliters) typically replenished as much fluid as is efficiently possible

And

> Dr. Ian Rogers suggests that between 500-750 ml/hr (about 17-25 oz/hr) will fulfill most athletes' hydration requirements under most conditions

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