Water Droplets
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A water droplet computer is more useful than you think
Scientists have built a computer out of water droplets, but why? It's not the first computer we've seen built with analog materials, and obviously runs at a tiny fraction of an electronic circuit's speed. It turns out, however, that it could be very handy to have water droplets run preset programs, because they can simultaneously do tasks like transporting chemicals. That was the "aha" moment for Stanford University researcher Manu Prakash, a fluid mechanics major who has been thinking about a water-powered computer for the last ten years.
