Roman Concrete is Better than Modern?? #shortsvideo #funfact

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15 Ancient Technologies That Science Can't Explain
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Be Curious️️!✌️

#curiosity #civilengineering
#shorts #short #satisfying #oddlysatisfying
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Not true. It's not stronger, it's self healing because they used seawater and volcanic ash, but because of this it's not fit for precise structures.

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They used sea water instead of fresh water which calcifies as it dries out

markphillips
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