|   | Drifting upwind is a little hard to
            believe, but on the other hand, it would take a fair
            bit of courage to drift with the ice like Nansen just
            to see for yourself. Let's try making a mini-sea
            in the laboratory and experiment with that instead.
            We want to set up  a wind blowing on a rotating
            sea.  We can blow air across the surface of a water
            tank, and place the whole apparatus, fan and all, on
            a rotating table.  |