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发表于 2017-4-25 15:21
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1990年代，Dr. Gary Glatzmaier教授的研究发现。 他指出地球磁场正在持续减弱，并且磁场倒置的事件已经临近， 而地球磁场出现倒置前的先兆，就是以前不会看见北极光的地区，将会开始看见极光出现。
The intensity of the magnetic field will be weaker maybe 10, maybe 100 times weaker than it is today which means that more cosmic radiation will get through.
磁场将会比今天减弱10倍或上百倍，会让更多孙宙辐射进入。
The structure of the magnetic field won't be the nice, smooth simple dipole structure that we have today which tends to deflect charged particles cosmic radiation to the poles of the Earth. Instead, there will be several poles all around the Earth, maybe close to the equator.
磁场结构将不会如今天一样正常、流畅，及只有两个磁极，现今磁场结构倾向把带电粒子，即把宙辐射偏转至地球两极。相反，未来地球将会拥有数个磁极，可能接近赤道。
And so, not only will the field be weaker, the field will tend to focus cosmic radiation at low latitudes where most people live.
故此，不仅地磁会减弱，更会将孙宙辐射集中於人烟稠密的低纬度地区。
Scientists now know that, the magnetic reversal that is inevitably coming will have serious consequences for our descendents.
科学家知道，磁极逆转必然发生，并将对后带来严重后果。
And as our children's children's children wait for north to become south, they may find that a world without a strong magnetic field has its compensations.
当我们的子孙的子孙的子孙等候北变回南，他们也许发现，没有强磁场的世界会为人类带来补偿。
The great thing is that it would be possible to see the aurora just about every night all over the Earth So London, behind me, for example, we might be able to see great aurora just about every night of the year shimmering and moving in the sky as the solar wind hits the atmosphere directly, and it glows like a neon light.
地球各处可能每晚都出现极光。比如我身后的伦敦， 可能一年每晚都能看到美丽的极光，於晚空闪烁移动，因太阳风直达大气层时，会发光如霓虹灯。
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发表于 2017-3-19 21:07
