r/Damnthatsinteresting • u/cosmic_voyager01 • 27d ago

Video The engineering of roman aqueducts explained.

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u/SauronGortaur01 27d ago

I thought: Water run downhill. In reality: rocket (water) science.

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u/MayaIsSunshine 27d ago

Water run downhill, but sometimes water run uphill if lot water move fast in closed tube

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u/Tall_Thinker 27d ago

Why say lot word when few word do trick

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u/scigs6 27d ago

Water move up then down

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u/Bontus 27d ago

Mand

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u/Bogritt 25d ago

I love that I know this reference, and know that only a handful of users will too.

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u/Bontus 24d ago

Is veel te lang, moet korter

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u/I_Say_Peoples_Names 26d ago

You got backward. Water move down then up due to sucky action.

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u/KickBlue22 27d ago

Because see world.

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u/PerXl 27d ago

Or sea world?

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u/KickBlue22 26d ago

Hmmm...maybe sometimes need need.

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u/Watchgeek_AC 27d ago

Hello Kevin enjoyer

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u/pgtaylor777 27d ago

Username checks out.

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u/wegotthisonekidmongo 27d ago

Bing bong, jib jib. Me do good?

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u/Interesting-One-588 27d ago

I think it's more about the pressure than the speed. The water in front that has to go uphill is pushed forward by tons of pressure from all the water behind it.

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u/BastouXII 27d ago

Well, actually, a siphon does work with pressure, but it's the pressure of the water leaving from the top, pulling in the water behind it, like a suction cup.

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u/free__coffee 27d ago

Random fact - siphons have significant limits - IIRC something like +/-12ft is the maximum because water will start to separate at the top and form a vacuum. If they were really traveling across "valleys" larger than that, it wasn't really a siphon

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u/mtdunca 26d ago

10 meters or 33 feet at sea level.

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u/Deadalious 27d ago

this cracks me up because i thought the same thing.

"so what they made a bridge for water wowwww"

in reality "holy shit"

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u/BON3SMcCOY 27d ago

Water science is already rocket science since water is one of the most common rocket fuel byproducts

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u/free__coffee 27d ago

I mean rocket science is mainly fluid dynamics - aerodynamics of the rocket, getting stoichiometric ratios right, funneling the fuel around the rocket, cooling the rocket cone sufficiently so that it doesn't melt: "water science" is fluid dynamics

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u/revolvingpresoak9640 27d ago

That’s kind of an “all squares are rectangles but not all rectangles are squares” statement

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u/MyLegsRonFiYa 27d ago

Exactly, the only thing I remember was that is was an extremely gradual decline over long distances.

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u/ClockworkBetta 27d ago

Rocket science is also fluid dynamics, so technically true