I got a question about the Freedom ship.

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Discussion Overview

The discussion revolves around the effects of large floating structures, specifically the Freedom ship and Japan's Megafloat, on ocean water levels and pressure. Participants explore concepts of buoyancy, displacement, and the relative significance of the weight of these structures compared to the vast mass of ocean water.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions the impact of the Freedom ship's weight on ocean levels, suggesting that it should have an effect.
  • Another participant argues that while there is an effect, it is negligible, comparing it to a small cork in a large pool.
  • A different participant clarifies that a ship displaces water equal to its weight, emphasizing that the pressure under the ship does not increase due to its weight.
  • Another participant notes the vast volume of Earth's oceans, suggesting that the addition of a few million tons is insignificant in comparison.

Areas of Agreement / Disagreement

Participants express differing views on the significance of the weight of large floating structures on ocean levels, with some asserting it is negligible while others question the implications of buoyancy and displacement.

Contextual Notes

There are unresolved assumptions regarding the scale of effects and the definitions of terms like "significant" in the context of ocean displacement.

tivaelydoc
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If the Freedom ship weighs 3 million tons, wouldn't that effect the ocean with all the weight pushing down?

Generally, how come things like Japan's Megafloat, which weighs 1000 tons, doesn't effect the ocean? Or does it?
 
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There is an effect, but it is too small to be significant. If you float a tiny piece of cork in a big pool, the change in level will be tiny.
 
It sounds like you think that when you put a ship in water, the weight of the ship increases the pressure of the water under it. It doesn't - the ship displaces water in an amount equal to it's own weight. That's what buoyancy is.
 
Also, Earth's oceans contain, in total, about a quintillion (10^18) tons of water. Who cares about a measly few million (10^6) more tons of stuff?
 

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