recreating the Aurora Borealis
Have you ever seen the Aurora Borealis (also known as the northern lights)? I haven’t, because where I live seems to be not compatible with that visual effect. I’ve been up north (in the United States), but not at the right time. I’ve seen pictures of it, which is neat, but that’s not quite the same. (But here’s a picture anyway.) 🙂
Now you may be wondering why I would write about the Aurora Borealis when I’ve never seen it. Well, I’d like to see it. I have a friend who has a great saying for when someone is at the proverbial fork in the road with a situation that needs a solution: “What are you going to do about it?”
Maybe I should make my own! Of course some people might say I should just travel up north to go see it, but that seems like too much trouble. I’d rather bring it here. (That sounds so much like Heinz Doofenschmirtz from Phineas & Ferb, where he planned to take (steal) Big Ben from London and put it next to his skyscraper apartment window, because it was getting harder to read the numbers on his watch. He just wanted a bigger clock, and that was the solution he chose. Honestly, I did not take his idea and modify it — I actually came up with this crazy solution on my own, though you might could argue I’ve watched too many cartoons. You might lose that argument, but I digress…)
Okay, where was I? Creating the Aurora Borealis effect where it doesn’t naturally exist. That shouldn’t be too complicated… it’s just some color smeared around in the sky. 🙂 But there’s probably some complicated science equations to work out, and maybe I should’ve paid more attention in college… but what am I talking about? The goal of education is not memorizing facts but in knowing where to look and how to find the answers you need. I learned about Google, so let’s start there:
Particles discharged from the sun travel 93 million miles (around 150 million km) toward Earth before they are drawn irresistibly toward the magnetic north and south poles. As the particles pass through the Earth’s magnetic shield, they mingle with atoms and molecules of oxygen, nitrogen and other elements that result in the dazzling display of lights in the sky. … Typically, when the particles collide with oxygen, yellow and green are produced. Interactions with nitrogen produce red, violet, and occasionally blue colors. The type of collision also makes a difference to the colors that appear in the sky: atomic nitrogen causes blue displays, while molecular nitrogen results in purple. The colors are also affected by altitude. The green lights typically in areas appear up to 150 miles (241 km) high, red above 150 miles; blue usually appears at up to 60 miles (96.5 km); and purple and violet above 60 miles. These lights may manifest as a static band of light, or, when the solar flares are particularly strong, as a dancing curtain of ever-changing color.
That’s a good start. Combining that with Wikipedia, we basically need to create something similar to solar winds and the resulting geomagnetic disturbance. Obviously we don’t want to cause interference or destruction with electronics, so that has to be accounted for. And it’ll need to be simpler. The solar winds are basically a flow of magnetized hot plasma from the two million degrees outer layer of the sun (the corona), and they arrive at Earth with a velocity around 400 km/s. Recreating that would be considerably costly and dangerous… and a lot of work…
So this project sounds really difficult, if not impossible. But consider this saying: “Progress is made by lazy men looking for easier ways to do things.” What if there is a simpler way to make it happen? Also, what if no one has really tried before? And it doesn’t have to be at that scale… What about making it happen over a smaller area, like over your house? Or in your living room?
So I searched some more, and scientists have recreated the northern lights inside a container, which is neat, but it’s not in the open air, so someone should take this to the next level. Not only would it be awesome, but you could sell this technology (although I must stipulate that the licensing needs to specify no ads are allowed in the sky; we see enough ads).
Do you have any ideas on how to do it? What you would do with a device that could make the air glow?
To answer my own question, I’d like to make lightning appear in different colors. The science might be relatable. Lightning is sometimes as hot as the surface of the sun, and it already moves really fast. (And an interesting side note is that the resulting thunder is because of the air being ionized… or in layman’s terms, torn apart. This will become its own post soon… I’ve rambled enough here.) 🙂