Feed retrieval for reddit: the front page of the internet on 07/04/2017, 14:09
New items – 3 total
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Their structures are still standing more than 1,500 years after the last centurion snuffed it: now the Romans’ secret of durable marine concrete has finally been cracked and findings could help today’s builders.
https://www.reddit.com/r/Futurology/comments/6l7g7z/their_structures_are_still_standing_more_than/
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