3 ms·
For a good book on the non-renewable (on human time scales) resource of sand, see The World in a Grain: The Story of Sand and How It Transformed Civilization by
by throw0101d 3y ago
For a good book on the non-renewable (on human time scales) resource of sand, see The World in a Grain: The Story of Sand and How It Transformed Civilization by Vince Beiser:
> The World in a Grain is the compelling true story of the hugely important and diminishing natural resource that grows more essential every day, and of the people who mine it, sell it, build with it--and sometimes, even kill for it. It's also a provocative examination of the serious human and environmental costs incurred by our dependence on sand, which has received little public attention. Not all sand is created equal: Some of the easiest sand to get to is the least useful. Award-winning journalist Vince Beiser delves deep into this world, taking readers on a journey across the globe, from the United States to remote corners of India, China, and Dubai to explain why sand is so crucial to modern life.
* https://www.goodreads.com/en/book/show/36950075 https://www.goodreads.com/en/book/show/36950075
> The problem lies in the type of sand we are using. Desert sand is largely useless to us. The overwhelming bulk of the sand we harvest goes to make concrete, and for that purpose, desert sand grains are the wrong shape. Eroded by wind rather than water, they are too smooth and rounded to lock together to form stable concrete.
* https://www.bbc.com/future/article/20191108-why-the-world-is-running-out-of-sand https://www.bbc.com/future/article/20191108-why-the-world-is...
- neodypsis 3y agoIf the problem of dessert sand lies in its grain shape, could it be addressed by using it to produce a "synthetic" grain with the right shape?
- GeoAtreides 3y agoYes, it's called manufactured sand and it's made by crushing rocks: https://www.youtube.com/watch?v=lVBiRPkQ0MI https://www.youtube.com/watch?v=lVBiRPkQ0MI
- nordsieck 3y ago> If the problem of dessert sand lies in its grain shape, could it be addressed by using it to produce a "synthetic" grain with the right shape? That sounds incredibly expensive. One of the great virtues of modern concrete construction is that it's inexpensive compared to feasible alternatives.
- dmoy 3y agoFor sure, yea, but it'll likely be way more expensive than just hauling it off the ground.
- mkoryak 3y agoThat's a great startup idea! I'll bring the glue, you bring the sand and we can glue the grains into more useful shapes.
- iamacyborg 3y agoI’m currently reading Material World by Ed Conway which also explores the topic of sand in good detail. https://www.goodreads.com/book/show/125937631 https://www.goodreads.com/book/show/125937631