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Will satellite megaconstellations weaken earth's magnetic field?

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Re: Will satellite megaconstellations weaken earth's magnetic field?

#11
post #4

I for one would like to see the satellites modified with a heat shield so they could punch through and hit a designated deorbit zone. I would even offer my backyard, but I fear it's too small. Wouldn't that be the ultimate tourist attraction? "Witness the next deorbit round tomorrow at Crater Park Observatory!"

Disney corp could even pay to have regularly scheduled "shooting stars" over their parks.

Re: Will satellite megaconstellations weaken earth's magnetic field?

#12
post #4

I for one would like to see the satellites modified with a heat shield so they could punch through and hit a designated deorbit zone. I would even offer my backyard, but I fear it's too small. Wouldn't that be the ultimate tourist attraction? "Witness the next deorbit round tomorrow at Crater Park Observatory!"

Wouldn't that be some form of kinetic orbital bombardment. Not sure that you want to have this in your backyard.

Re: Will satellite megaconstellations weaken earth's magnetic field?

#13
post #5

That it is true or not is irrelevant. Fact is that it will a endless quarrel between scientists, until enough time has passed, where it is either: * forgotten as the problem was not real * too late as the problem was real History will repeat itself subtly, that's the only certainty

Humanity has actually solved many issues brought up by scientists before they caused drastic harm. A few that come to mind are acid rain, smog, DDT, and CFC’s.

Catalytic converters in aggregate costs something like 1/2 a trillion dollars for clean air. We don’t hear about Acid rain because sulfur dioxide emissions are down well over 90% thus dealing with the actual problem.

Even CO2 emissions are well below the “do nothing” projections. Instead of being hopeless humanity has a long track record of some basic cost benefit analysis and then mitigating issues.

Re: Will satellite megaconstellations weaken earth's magnetic field?

#14
post #12
post #4

I for one would like to see the satellites modified with a heat shield so they could punch through and hit a designated deorbit zone. I would even offer my backyard, but I fear it's too small. Wouldn't that be the ultimate tourist attraction? "Witness the next deorbit round tomorrow at Crater Park Observatory!"

Wouldn't that be some form of kinetic orbital bombardment. Not sure that you want to have this in your backyard.

Why not use this energy for mining? What is the terminal velocity anyhow?

Re: Will satellite megaconstellations weaken earth's magnetic field?

#15
post #12
post #4

I for one would like to see the satellites modified with a heat shield so they could punch through and hit a designated deorbit zone. I would even offer my backyard, but I fear it's too small. Wouldn't that be the ultimate tourist attraction? "Witness the next deorbit round tomorrow at Crater Park Observatory!"

Wouldn't that be some form of kinetic orbital bombardment. Not sure that you want to have this in your backyard.

I'm sure I want it. Unfortunately my house is too close to the center of my backyard.

My neighbours are too close too. Any stray parts would cut into the proceeds of ticket sales to the bunker at the center where you can watch live streams of the parcels hitting on top of you.

Re: Will satellite megaconstellations weaken earth's magnetic field?

#16
post #12
post #4

I for one would like to see the satellites modified with a heat shield so they could punch through and hit a designated deorbit zone. I would even offer my backyard, but I fear it's too small. Wouldn't that be the ultimate tourist attraction? "Witness the next deorbit round tomorrow at Crater Park Observatory!"

Wouldn't that be some form of kinetic orbital bombardment. Not sure that you want to have this in your backyard.

It wouldn't. Small objects, like satellites, decelerate to terminal velocity. The impact of one of those would be the same as if they fell from an aeroplane.

Re: Will satellite megaconstellations weaken earth's magnetic field?

#17
post #13
post #5

That it is true or not is irrelevant. Fact is that it will a endless quarrel between scientists, until enough time has passed, where it is either: * forgotten as the problem was not real * too late as the problem was real History will repeat itself subtly, that's the only certainty

Humanity has actually solved many issues brought up by scientists before they caused drastic harm. A few that come to mind are acid rain, smog, DDT, and CFC’s. Catalytic converters in aggregate costs something like 1/2 a trillion dollars for clean air. We don’t hear about Acid rain because sulfur dioxide emissions are down well over 90% thus dealing with the actual problem. Even CO2 emissions are well below the “do n…

That depends on the profits. The problem is solved only if the cost of fighting regulations (misinformation, lobbying, discrediting, defaming, bribing and sabotage) is less than the profits people make by causing the problem in the first place. There are several examples of this - but none more obvious than the climate catastrophe.

Re: Will satellite megaconstellations weaken earth's magnetic field?

#18
post #4

I for one would like to see the satellites modified with a heat shield so they could punch through and hit a designated deorbit zone. I would even offer my backyard, but I fear it's too small. Wouldn't that be the ultimate tourist attraction? "Witness the next deorbit round tomorrow at Crater Park Observatory!"

Nifty idea.

But don’t satellites have toxic components? While most of it will be burnt up some bits get to the ground.

Satellites are made from material, and can’t be safely disassembled. Rentry is uncontrolled incineration, depending on a large part of the pollutants being diluted across the sky, and the ground and water on which they fall.

Background levels would rise.

Re: Will satellite megaconstellations weaken earth's magnetic field?

#19

Sometimes it seems like some people have a pathological need to be a doomer about any human activity. See also: "Kessler syndrome" doomerism about LEO satellites, the debris of which would only be a concern for a few years.

Almost every technology gets assigned its own existential crisis. I’m not sure what that’s about.

(I trace it all back to Jurassic park. It trained an entire generation to be afraid of technology.)

Re: Will satellite megaconstellations weaken earth's magnetic field?

#20
The paper from this article says that only 450kg of charged material from meteorites enters the relevant part of the atmosphere each year. Yet the total amount of meteorites entering is somewhere in the range of 10^7 to 10^9kg per year [0]. I know the really small stuff slows down too quickly to burn up completely, but does anyone know why such a small fraction of the meteorites burns up in this region compared to satellites? Or is that 450kg number just wrong?

[0] https://www2.tulane.edu/~sanelson/Natural_Disasters/impacts....

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