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Bird Navigation Based On Quantum Zeno Effect

KentuckyFC writes "How birds use the Earth's magnetic field to navigate has puzzled researchers for decades. In recent years, a growing body of evidence has pointed to the possibility that a weak magnetic field can influence the outcome of a certain type of chemical reaction involving the recombination of pairs of ions in bird retinas. The trouble is that the ion recombination is known to happen too quickly for the Earth's weak magnetic field to have any effect. Now it looks as if the quantum Zeno effect explains all, says one researcher (abstract). This is the watched-pot-never-boils effect in which the act of observing a quantum system maintains it for longer than expected. That's extraordinary news because it means a quantum sensor is determining the macroscopic behavior of living birds."

3 of 96 comments (clear)

  1. Weird by MBCook · · Score: 5, Interesting

    So, from reading the article, the birds observing the chemical reaction, thus slowing it down long enough for the magnetic field of the Earth to have a detectable effect when it shouldn't.

    Quantum mechanics is so weird. Neat!

    But when the researchers looked for this, shouldn't that looking have caused the metaphorical pot to be watched thus inducing the effect, or had no one tried to measure this simply because they knew the reaction didn't take long enough (or shouldn't, ignoring quantum mechanics)?

    Bonus questions: The article said that had proved this by using a strong electric field to alter the way this reaction goes. Would it be possible to inject something into the birds that would prevent them from "watching" this reaction, so it would go at it's "normal" speed?

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  2. No need for a quantum sensor... by GrosTuba · · Score: 5, Interesting

    Dude, we know how birds navigate: they follow roads.

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    1. Re:No need for a quantum sensor... by SpeedBump0619 · · Score: 5, Insightful

      What color are most roads? What do dark colors do in sunlight? What happens when air heats up? What's the easiest way for a bird to stay aloft?

      Lets all say it together...correllation != causality.