Aurora explained in under one minute

Aurora. The picture is taken by Jan Holmgård at Andøya Space Center in 2015.
Aurora. The picture has been taken by Jan Holmgård at Andøya Space Center in 2014. The pink color on the rock is due to the lighting at Spaceship Aurora. All rights are reserved.

If you are like my wife, and your partner is of a somewhat nerdy persuasion, here is how you can impress him or her: Explain Northern Lights – or Aurora as we should call them since they happen in the South, too – in under one minute.

That can be done, and I will show you how. First, you will need to load this video. Then you will have to find your own variation of saying the following:

See, this is our Sun. It loses material, protons and electrons, at a rate of several times the mass of the Earth per day. The spots you see on the Sun are connected to the largest explosions in the solar system and release more matter than you can imagine. The particles race outwards carrying their own magnetic field with them, hitting Earth’s magnetic field and, thankfully, being mostly deflected.

But, if conditions are just right, the magnetic fields melt together on the day-side of Earth and fold the Earth’s field backwards towards the night side where, strangely, the same thing may happen again. It’s like the wire of a bow gaining in tension. And when the whole thing melts together once more, the sparkling little electrons burst into the polar night sky. There they hit molecules and atoms in the atmosphere and create dancing, pink Northern lights over North Africa – wait, what?

The text, which you are supposed to use as a template comes in at slightly more than 150 words. That is around the number of words that the average person seems to use per minute. Good luck! 😉

Now read this:  Curious aurora

2015-03-14 18.46.20Alexander is a physicist, teacher and storyteller. You can follow him on Twitter, Facebook, and Instagram.


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