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    31 Comments

    1. Sufficient-Step6954 on

      Rome is built over several natural springs and you can see examples of this all over the city where they built drinking spouts centuries ago.

    2. RedEyedTroll6 on

      I’ve never seen the benefits of trickle-down economics portrayed so eloquently

    3. I’m impressed they’ve had that set up for 50 years to be able to show the effects. That’s some real foresight.

    4. ā€žin my next video I’ll come back here to check for 75 years of erosion! Subscribe to not miss anything!ā€œ

    5. With or without fine sand and silt.

      And what is the temperature swing.

      And when was the thing put there and how much has it eroded itself?

    6. AnimationOverlord on

      My question is what is the rock it’s landing on, and what is the mineral content of the water

    7. Renegade_Dream1984 on

      Should’ve put the date erosion started. That way future viewers can always know the amount of time that has passed.

    8. RedditIsOverMan on

      Aren’t these just carved by someone making an exhibit for children?

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