Water Logic Gates Built at MIT
ndogg writes "This story is all wet. Paulo Blikstein at MIT has created a water computer. The one boolean logic gate he created functions as a half-adder (i.e. both XOR and AND). He then proceeded to create a four bit adder."
I've seen this somewhere....
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http://hardware.slashdot.org/article.pl?sid=02/10
What sig ?