A question (and no, it's not for uni work). A boat sits in the water. Attached to the front of the boat is a bucket (or some other vessel), submerged. The bucket is sort 0of a black hole for water. Anything going into the bucket vanishes, to another world, the Pentagon, Michael Jackson's basement, whatever. It just goes. Now, the water will pour into the submerged bucket due to gravity and pressure and all. That's happening at the front of the boat. Will the boat move forward?