Chemical 'caterpillar' points to electronics-free robots

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Okay, as if the imminent obsolescence of the human race were not creepy enough, the Shuji Hashimoto applied physics laboratory at Waseda University, Tokyo is busy bringing us these fresh horrors. I'm not especially squeamish, but man...

Also, are we seeing the early potential for a synthesis between mechanical and these chemical techonologies? I'm looking at you Cyberdyne Systems Model 101...

Shingo Maeda and colleagues made the colour-changing, motile gel by combining polymers that change in size depending on their chemical environment. This is based on an oscillating chemical reaction called the Belousov