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This giant model stopped a terrible plan

This giant model stopped a terrible plan on HackerTube: recommended by 5 Hacker News commenters across 4 separate months, 2018–2026.

Tom Scott

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Tom Scott tells how John Reber's plan to dam San Francisco Bay was disproved by the Army Corps of Engineers' giant hydraulic Bay Model in Sausalito. The model showed the plan would have been dangerously wrong.

Why Hacker News recommends it

HN recommends it as a short, fascinating story of a scale model preventing a terrible engineering decision.

people recommended it
5
separate months
4
strong recommendations
0
discussed on HN
2018–2026
“I learned of this plan via this short Tom Scott video. Fascinating.”
— scrollaway, Nov 2020, in “The New Europe With Lasting Peace (100 year old map)”

What HN commenters said

6 Hacker News comments link this video. Each one links back to its thread.

LucasLangloisJun 2026Recommends

If you don't know Tom Scott, he has done a great video 4mn vide on the model where you can see it in action: ▶ this video

in “U.S. Army Corps of Engineers Bay Model” · View on HN

pmiller2Dec 2020Recommends

Yeaaaah, like that wouldn't have any unintended consequences. Meanwhile, I find this more interesting: [link] The Army Corps of Engineers literally built a scale model of the San Francisco Bay Area, and they used it to figure out that damming the SF Bay was a very, very bad idea: ▶ this video

in “Atlantropa” · View on HN

scrollawayNov 2020Recommends

> It’s reminiscent of the plan suggested by a school teacher, to dam the San Francisco Bay, which was taken seriously enough to be modeled to scale by the military. For those unaware, I learned of this plan via this short Tom Scott video. Fascinating. ▶ this video (4:33)

in “The New Europe With Lasting Peace (100 year old map)” · View on HN

jedimastertJul 2019Recommends

Tom Scott has a great video[0] about a similar attempt to dam the San Francisco Bay that got a lot closer to actually happening. So see if it was practical, the US Army Corps of Engineering built a giant scale model of the SF bay and put a dam on it to see what would happen. [0]: ▶ this video

in “Atlantropa” · View on HN

CaliforniaKarlJul 2019Recommends

I don't think we can change the fact that people generally listen to what actors (and other charismatic people) have to say. This is nothing new. For a local example, San Francisco's John Reber, and the plan he pushed to turn the Bay into a freshwater lake ( ▶ this video is a good video to watch). For a state (California) example, there's Arnold Schwarzenegger. For a national (US-level) example, there's Ronald Reagan. For what it's worth, Harrison Ford seems to be a stand-up guy. For example, his reaction when he accidentally landed his private plane on an airport taxiway: [link] So, rather than saying "Stop listening to <insert charismatic group here>", it's better to engage with and educate them.

in “Harrison Ford: “Stop Giving Power to People Who Don't Believe in Science”” · View on HN

jackcarterNov 2018Cites it

My favorite example: The U.S. Army Corps of Engineers Bay Model, a functional 128,000 sq. ft. hydraulic model of the San Francisco Bay. [link] ▶ this video

in “Can Analogies Reveal the Laws of Physics?” · View on HN

Topics & tags

Civil engineering & constructionWorld historysan francisco bayhydraulic modelarmy corps of engineersjohn rebertom scott