The hydrogen then flows toward the white dwarf's magnetic poles.

然后氢气流向白矮星磁极。

This magnetic concentration forms vortexes that radiate beams from the magnetic poles.

这磁场会集中形成为来自磁极辐射光束漩涡。

This phenomenon occurs above the magnetic poles in the Northern and Southern Hemispheres.

这现象发生在北半球和南半球磁极之上。

I've gone to the magnetic North Pole on a dog sled.

我坐着雪橇犬拉爬北磁极。

The last polarity reversal took place some 770,000 years ago.

最近一次地磁极性倒转发生在大约77万年前。

This phenomenon occurs above the magnetic poles in the Northern and Southern hemisphere.

这现象发生在北半球和南半球磁极上方。

A second, intensifying blob below Siberia is pulling the pole away.

西伯利亚地下另一个不断液态水团正在将磁极拉远。

It was as if her magnetic poles had reversed and where they had once attracted now repelled.

似乎她磁极已经逆转，原本会吸引，现在变成排斥。

You had a jet of plasma traveling very fast that impacted on the magnetopoles-that's the boundary of our magnetosphere.

移动速度极快等离子体射流撞击磁极——也就是地球磁层边界。

Since Earth rotates as a solid, our magnetic field is simple, we have two poles: North and South.

既然地球作为一个固体自转，我们磁力就很简单，有两个磁极，北极和南极。

" There's clear evidence from the volcanic rocks of a major excursion happening at about 795,000 years ago."

“来自火山岩明确证据表明，磁极在大约79。5万年前发生一次大偏移。”

A middle layer of nickel, which gives the bots magnetic polarity, so they can be pulled through wastewater with magnets.

中间镍层提供磁极性，这样在磁力作用下机器人可以从废水中脱离。

They found that the reversal took about as long as many scientists previously believed it did-just a few thousand years.

他们发现，磁极倒转所需时间与许多科学家之前认为一样长——只需要几千年。

But imagine if instead of two poles you had 1 to 10 million. This is what happens on the Sun.

但是想象一下如果你不是只有2极，而是有1百万或1千万个磁极情景。而太阳上就是这样。

Magnetic force causes similar poles to repel one another, and opposite poles to attract.

磁力使相似磁极相互排斥，相反磁极相互吸引。

Permanent magnets also have fixed poles.

永磁体也有固定磁极。

But that can't happen with magnets because you can't isolate one magnetic pole.

但这不会发生在磁铁上，因为 你无法隔离一个磁极。

He guesses it makes sense—they've always been fixed points in each other's worlds, little magnetic poles.

他猜这是有道理——他们一直是彼此世界中固定点，小磁极。

The deranged needles would mark contradictory directions as we approached the southern magnetic pole, which doesn't coincide with the South Pole proper.

它那乱摇乱晃针，当船上近不能跟地球南方相混同南磁极圈时候，指出矛盾相反方向。

Because Earth behaves like it has a giant bar magnet in it, and your compass needle will point north towards Earth's magnetic pole.

因为地球内部就像有一个巨大条形磁铁，而你指南针会向北指向地球磁极。