2007-01-02 06:39:10 · 2 answers · asked by carl_conti08 1 in Science & Mathematics ➔ Physics
A 'Cartesian diver' is a device that demonstrates buoyancy. And buoyancy is all about density. The 'diver' displaces water and so has its apparent weight reduced by that amount. One of the things that affects the density of liquids is temperature. It doesn't change very much... but it does have an effect.
If your diver was only exactly neutrally buoyant at your home (its weight was exactly the same as the weight of the water it displaced), you would find that this would not be the case if you took your apparatus to the north pole or the equator. Cold water is more dense, causing your diver float (since it was equal in weight to less-dense water). Hot water would be less so and make your diver sink (same thing, but the other way around).
Hope that helps!
2007-01-02 06:55:14 · answer #1 · answered by Doctor Why 7 · 1⤊ 0⤋
it will get high
2007-01-02 06:40:48 · answer #2 · answered by gjmb1960 7 · 1⤊ 0⤋