Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I got a question about the Freedom ship.

  1. May 6, 2007 #1
    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?
  2. jcsd
  3. May 6, 2007 #2


    User Avatar
    Gold Member

    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.
  4. May 6, 2007 #3


    User Avatar

    Staff: Mentor

    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.
  5. May 6, 2007 #4
    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?
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: I got a question about the Freedom ship.
  1. Got a question (Replies: 4)