The weirdness bar was set pretty high at last week's Emerging Technology Conference (ETech) in San Diego. Even so, a lot of the techie presenters cleared it with room to spare. These certainly included the University of California, San Diego, professor who spoke of unleashing "feral robotic dogs" on contaminated landfill sites. Ditto for the giggling British tinkerer who set up a complex system of wires, sensors and potentiometers in order to tell time by measuring the deterioration of a prawn-and-mayonnaise sandwich.
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