The link for this challenge is: https://dailypost.wordpress.com/photo-challenges/structure/
Last year I took the two photos shown below in Sapa, on the Northwest corner of Viet Nam. They show a water-driven mortar and pestle used to pound grains of rice to remove husks. The structure still works but maybe it is now only displayed for tourists to snap pictures.
Water powered mortar and pestle: accumulation.
Water powered mortar and pestle: release.
neihtn 
I wouldn’t think there would be enough force to do the job, but obviously I’m wrong. It’s sad when tools like this are only used to show tourists how things used to be, but progress is complicated, isn’t it?
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I watched the “pestle” come down when the water is emptied, and it had plenty of force. Anyway, it beats having human hands do it.
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Beautiful pics! Good choice for the challenge
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Thank you for visiting and commenting!
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I’m always interested i how other cultures solved problems, and this is a great example of that!
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It is! It must have been used for centuries until the modern age brought mechanical and electrical motors.
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Hello Hien, Interesting to learn about these. Thank you.
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Thank you for commenting, Jane!
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I like that, thanks for sharing it!
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Thanks, I’m glad you like it.
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