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Starlink's laser system is beaming 42 petabytes of data per day

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Re: Starlink's laser system is beaming 42 petabytes of data per day

#171
post #38

Earlier quoted context omitted.

Why would we expect faster than fibre?

The speed of light in a vacuum is roughly 50% higher than the speed of light in fiber.

I will note that this is the case for conventional fiber-optic cable. The newer hollow-core fiber cables transmit light at nearly c. As far as I know hollow-core has not seen wide-spread use, but it will be interesting if trans-continental connections switch over.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#172

Earlier quoted context omitted.

You can buy a 1TB microSD card for $150 now.

What a time to be alive! Even those of us without a football field can lay out huge amounts of data in a straight line.

dang I can hear the youtube channel voice

Re: Starlink's laser system is beaming 42 petabytes of data per day

#173
post #147

Random thought I just had: What are the odds of a rocket launch crossing through one of these laser links on its way to a higher orbit and disrupting traffic for a fraction of a second? I know space is really big and so the odds of a rocket hitting a satellite on its way up are incredibly low, but now we're talking about lots of lines between each satellite rather than just the satellites themselves. Are the odds sti…

I think they are still tiny. Also don't networking systems routinely deal with temporary link disruption?

What does that have to do with the odds of rocket induced dropped packets?

Re: Starlink's laser system is beaming 42 petabytes of data per day

#174
post #167

Earlier quoted context omitted.

I'm immensely interested in people commenting how they are disinterested in X thing. Please go on! I'd love to know the motivation of posting, it makes no sense to me. Seems to be a self-fulfilled prophecy.

I guess I just wish the HN timeline wasn't so full of his garbage.

Do you have a specific qualms with satellites providing internet to remote areas or EVs or space exploration or is it purely personal?

In other words, what makes it "garbage" to you?

If it's straight up due to Musk being involved, isn't that a negative outlook for the sake of being negative?

You could just view it as humans advancing and be happy about that.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#175
post #167

Earlier quoted context omitted.

I guess I just wish the HN timeline wasn't so full of his garbage.

Do you have a specific qualms with satellites providing internet to remote areas or EVs or space exploration or is it purely personal? In other words, what makes it "garbage" to you? If it's straight up due to Musk being involved, isn't that a negative outlook for the sake of being negative? You could just view it as humans advancing and be happy about that.

I think I have been pretty clear? I don't care for Musk's projects.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#176

Earlier quoted context omitted.

1. The satellite needs to be passing overhead at an angle where you can see it, and clear skies etc. 2. The sky needs to be dark enough to see it (so twilight or night) 3. The satellite needs to be illuminated by the sun. 4. The satellite needs to reflect enough light that you can see it. Basically this happens just before sunrise, and just after sunset. So the ground and sky are dark (allowing you to see through the…

> Basically this happens just before sunrise, and just after sunset. I've seen plenty of satellites in the middle of the night, from very dark areas (wilderness). They look like stars, only they move more quickly. These observations go back a decade, at least.

That doesn't seem right, why would they be bright?

Re: Starlink's laser system is beaming 42 petabytes of data per day

#177
post #175

Earlier quoted context omitted.

Do you have a specific qualms with satellites providing internet to remote areas or EVs or space exploration or is it purely personal? In other words, what makes it "garbage" to you? If it's straight up due to Musk being involved, isn't that a negative outlook for the sake of being negative? You could just view it as humans advancing and be happy about that.

I think I have been pretty clear? I don't care for Musk's projects.

You were clear on the opinion, not the reasoning.

I was just curious as to why you didn't care for the projects.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#178
post #147

Random thought I just had: What are the odds of a rocket launch crossing through one of these laser links on its way to a higher orbit and disrupting traffic for a fraction of a second? I know space is really big and so the odds of a rocket hitting a satellite on its way up are incredibly low, but now we're talking about lots of lines between each satellite rather than just the satellites themselves. Are the odds sti…

It's absolutely incredibly small, think of how large the surface area of a sphere of LEO and the surface area of these lasers linking the vertices of the 5,289 satellites. The gaps between them are probably hundreds of kilometres. I would imagine that each link has multiple routes so if there was a failure traffic can still be routed in the same way the Internet has many routes.

https://satellitemap.space is pretty amazing but a Starlink satellite looks massive on there, really at the scales we are talking they wouldn't even be a pixel. Do we know how many of the satellites are actually interlinked by lasers?

Re: Starlink's laser system is beaming 42 petabytes of data per day

#179
post #175

Earlier quoted context omitted.

I think I have been pretty clear? I don't care for Musk's projects.

You were clear on the opinion, not the reasoning. I was just curious as to why you didn't care for the projects.

I don't really see an individual asshole's ownership of such a large part of the world's internet access as "humans advancing". Nor do I see his attempt at shifting the conversation away from actual solutions (e.g public transport, walkable cities, etc) over to "buy slightly more efficient and very expensive cars from him" as "humans advancing". His efforts to signal-boost the far right is certainly not "humans advancing".

This is just PR for one of his shitty projects. It has no place on HN.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#180

I sit in my hot tub at night and see 1-2+ satellites go over every single time I'm out there. Which also makes me wonder how many of the shooting stars I've seen recently are just old starlinks burning up.

There are so many that I spot them with my telescope while watching the sky with some frequency. In the last year I've probably caught 6 or so. It's just a spot of light passing through the view, nothing spectacular, but I think it would have been virtually impossible 20 years ago.
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