One of the little things that make me miss the British isles: How does Dyson make water go uphill?

Yes, Dyson. He of the bagless vacuum cleaner fame. I first became aware of him during a 2nd year tutorial, when my teacher - the best teacher I had in the whole of my university life, I must add - brought him up, apropos of nothing, and connected Dyson's then on-going court battles with what we had been learning in lectures. I wonder how my teacher is doing now. He really was brilliant.