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[–] 237 points 10 months ago (15 children)
  • [–] 16 points 10 months ago (3 children)

    Wow. I never thought of bottling and selling water.

    Was surprised xkcd didn't mention steam boiler turbines.

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  • [–] 11 points 10 months ago (6 children)

    Love this article, but they kinda bury the lede making the Coca-cola joke about bottling and selling water.

    Most bottled water you buy in stores is, in fact, tap water. If you think they're getting it from a mountain spring, even if there's a mountain on the label, you would be mistaken. You wouldn't want mountain water (with bear piss) anyway, the water you buy bottled is filtered and treated. It's good tap water, but it's still tap water. So next time your water bottle runs out, just refill it from the tap. Assuming your tap water is potable and doesn't taste like shit.

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  • [–] 5 points 10 months ago (2 children)

    I grew up drinking mountain spring water. It’s way better than “bear piss”. Filtered and treated doesn’t mean better. Some natural water from springs is perfectly fine.

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  • [–] 2 points 10 months ago (1 child)

    Why is it necessary for the water to go up and down to turn the turbine? Isn't the pressure already added to the water and you can directly use it to drive a heavier turbine at ground level?

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  • [–] 17 points 10 months ago

    Second, as you can probably guess by looking at the above picture, pumping the water up 40 meters with water pressure and then back down doesn't accomplish anything—you can just hook the faucet up to your device, and let the water pressure drive the generator directly.

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