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OTDIFH

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Fat Dave
Fat Dave
Mar 2024
10:44am, 1 Mar 2024
14,498 posts
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Fat Dave
(A refers to the type of dam; specifically its shape.)
Fat Dave
Fat Dave
Mar 2024
11:06am, 1 Mar 2024
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Fat Dave
1936 After five years of construction, the Hoover Dam, the highest concrete A dam in the United States, is completed.
GregP
GregP
Mar 2024
11:25am, 1 Mar 2024
150,979 posts
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GregP
arc?
GregP
GregP
Mar 2024
11:26am, 1 Mar 2024
150,980 posts
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GregP
What I know about dams can be written on a very small thing.

Active? Are there active and passive dams?
Fat Dave
Fat Dave
Mar 2024
11:28am, 1 Mar 2024
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Fat Dave
Arc is achingly close. It's about the way the shape of the dam is designed to brace against the flow of the river.
GregP
GregP
Mar 2024
11:28am, 1 Mar 2024
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GregP
I really have no idea if it's neither of those. No idea at all.
GregP
GregP
Mar 2024
11:29am, 1 Mar 2024
150,982 posts
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GregP
Arch? That makes no sense.
Fat Dave
Fat Dave
Mar 2024
11:38am, 1 Mar 2024
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Fat Dave
Greppers breaches the floodgates.

1936 After five years of construction, the Hoover Dam, the highest concrete arch dam in the United States, is completed.

An arch dam is a concrete dam that is curved upstream in plan. The arch dam is designed so that the force of the water against it, known as hydrostatic pressure, presses against the arch, causing the arch to straighten slightly and strengthening the structure as it pushes into its foundation or abutments.
GregP
GregP
Mar 2024
11:41am, 1 Mar 2024
150,983 posts
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GregP
Oh! Which I think is what I meant by arc. Except it seems it curves the 'wrong' way, intuitively. Rather like the blade of a SUP paddle?
GregP
GregP
Mar 2024
11:41am, 1 Mar 2024
150,984 posts
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GregP
Anyway, this. The 'Q' is a Q

About This Thread

Maintained by GregP


Peter Frampton solos on nine instruments in barely tolerable performance by Wurzels and forces Sting to comply with a horrible setlist in Cardiff.







---
Warning: this thread may contain traces of Céline Dion

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