第81期:黏性为零的神奇超流体
日期:2023-03-10 15:52

(单词翻译:单击)

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Superfluids

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超流体

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A superfluid is a unique type of liquid that has zero viscosity.

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超流体是一种独特的液体,它的黏性为零8evthPo=6a%o6y

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This means that it will never stop flowing.

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这意味着它永远不会停止流动[EJ.-(Ar9Imjwup

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The only type of liquid that scientists can turn into a superfluid is liquid helium.

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科学家可以使之变为超流体的唯一一种液体是液氦BDb^V!0Q&jBbp)Ngud

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Helium is the only substance that stays in liquid form even as its temperature approaches absolute zero.

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氦是唯一一种即使在温度接近绝对零度时仍保持液态的物质o3QPaf_uLnTs

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Most substances freeze at much higher temperatures.

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大多数物质在更高的温度下就已经冻结dDK(kUF8-|jk&&Ag1Q

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When liquid helium is at a very low temperature, all of its atoms have the same amount of energy.

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当液氦处于非常低的温度时,它的所有原子都具有相同的能量3mbcC4G4rgv7t)R

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This causes the substance to behave like one single atom instead of many.

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这使得这一物质变得像一个原子而不是多个原子arXimTBGGo;X

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The atoms in superfluid helium don’t collide with each other, or transfer energy to each other.

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超流氦中的原子不会相互碰撞,也不会相互传递能量Niq[tDsx1vYg!

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Because of this, there is no friction between the helium atoms.

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正因为如此,氦原子之间没有摩擦力KRC!@%E17eCNV~Ky5dQ

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If a scientist decided to stir a container of superfluid helium, the liquid would continue to spin around the container forever.

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如果科学家决定搅动容器中的超流氦,那么这种液体将在容器中永无止尽地旋转51*wy(@c5K,OhA

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