4 ms·
I think I missed something. What is the mechanism that causes the slime/memristor to keep changing states after the external stimulus is removed? I thought the
by ntownsend 17y ago
I think I missed something. What is the mechanism that causes the slime/memristor to keep changing states after the external stimulus is removed? I thought the memristor just remembers a voltage. After you remove the external voltage then wouldn't the voltage across the memristor just remember the state it was in when the last external voltage was applied? Likewise for the slime and air.
- sp332 17y agoThe memristor doesn't keep changing states. Where did you see that? More technical: http://arstechnica.com/hardware/news/2009/01/logic-circuits-that-program-themselves-memristors-in-action.ars http://arstechnica.com/hardware/news/2009/01/logic-circuits-...
- ntownsend 17y agoAh. I misread the NewScientist article. It wasn't clear to me that in the experiment to mimic the slime they, in fact, modeled the slime with a circuit that _included_ a memristor and not with just a memristor. The paper the article cites also made things much clearer: http://fr.arxiv.org/abs/0810.4179 http://fr.arxiv.org/abs/0810.4179
- jaekwon 17y agoThe research paper that the newscientist article is referring to ( http://arxiv.org/pdf/0810.4179v2 http://arxiv.org/pdf/0810.4179v2 ) points to some resonance behavior of memristors' "LC contour". I don't understand memristors very well, but it seems that the only connection between memristors and the amoeba's "predictive" behavior is resonance, if there is a connection at all. While memristors are cool and may in fact help us understand / mimic the learning ability of animals, the amoeba's ability to "predict" external forces is a weak, weak link.
- kragen 17y agoFWIW it remembers the time integral of current, not voltage.