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SpaceX plans worldwide satellite Internet with low latency, gigabit speed

arstechnica.com

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Re: SpaceX plans worldwide satellite Internet with low latency, gigabit speed

#271

Post by vacri »

jamesrcole wrote: post #241
vacri wrote: post #209

Earlier quoted context omitted.

> the majority of people 18-25 voted progressive in most states This is entirely normal - the young like things to change, the old do not. This voting pattern well predates the internet. > I believe that in general, younger people have become better at filtering out bullshit because they've had access to much more information I disagree. It's about the same as it always has been. Yellow journalism exists now, just as…

> If the internet stopped people from falling for bullshit the person you're replying to didn't make such a strong claim.

'stopped' does not necessarily mean 'ceased' when discussing human behaviour. Laws against murder and theft stop murder and theft, but doesn't zero them.

Re: SpaceX plans worldwide satellite Internet with low latency, gigabit speed

#272

Post by dcposch »

vacri wrote: post #209
geuis wrote: post #164

Earlier quoted context omitted.

I suspect this is just a phase. I don't have any hard stats at the moment to back it up, so it's just a feeling. Internet culture is still very young. At least in the US based on the election last week, the majority of people 18-25 voted progressive in most states. These are people who have never known the world without internet access. I guess that the people who voted the other way are folks who have transitioned i…

> the majority of people 18-25 voted progressive in most states This is entirely normal - the young like things to change, the old do not. This voting pattern well predates the internet. > I believe that in general, younger people have become better at filtering out bullshit because they've had access to much more information I disagree. It's about the same as it always has been. Yellow journalism exists now, just as…

> This is entirely normal - the young like things to change, the old do not. This voting pattern well predates the internet.

Makes no sense given the context. Clinton was absolutely not the change candidate in this election.

Old people predominantly voted for a shakeup, a radical change in the way American govt operates.

Re: SpaceX plans worldwide satellite Internet with low latency, gigabit speed

#273

Post by puranjay »

katzgrau wrote: post #7

Free, global internet access is the next step toward a smarter, more progressive planet. I don't even care about the speed - if the only thing users could access was wikipedia, I'd still personally donate to the project. I cannot emphasize how important democratizing knowledge is to me (and many others).

We didn't have internet when I was in high school

If I had Wikipedia and Khan Academy back then, it would have been life changing. I would have probably made very different decisions than I made

Re: SpaceX plans worldwide satellite Internet with low latency, gigabit speed

#274

Post by ygaels_armpit »

Dylan16807 wrote: post #238
ygaels_armpit wrote: post #212

Earlier quoted context omitted.

I was; the fridge outputs quite a bit of heat, good for raising seedlings on top of. But I would imagine the expenses involved in this stuff wouldn't make it sensible for a fridge (I don't think they draw that much power anyway). I just had never heard you could harness this, it's cool. Edit: Bit late to the party, 1821. Bit of catching up to do.

Okay, then that means you're ventilating the output heat poorly. If there is a significant difference in temperature between the coils and the room, you're spending more power than you need to when you pump heat out of the fridge. Adding fins or fans would save you more power than you could ever recover.

I have no idea what fins and fans mean in this instance. It's a fridge, in a very small space.

Will those help efficiency? I mean, I imagine they will, but in practice, how do they work?

I want to move away from freezing so much meat ideally, but this might be a step. I was getting sick of the taste of Novell employees.

Re: SpaceX plans worldwide satellite Internet with low latency, gigabit speed

#275

Post by babyrainbow »

katzgrau wrote: post #7

Free, global internet access is the next step toward a smarter, more progressive planet. I don't even care about the speed - if the only thing users could access was wikipedia, I'd still personally donate to the project. I cannot emphasize how important democratizing knowledge is to me (and many others).

Sadly, this is a naive view, and perpetuated by people who wants to push more ad channels in the name of "empowering" communities...

Access to information does not mean consumption. If you give access to internet to 100 people, 99 of them will use it for Facebook or Porn.

1. If you have enough motivation, learning about anything was already possible even before Internet (local libraries and resources)

2. If you don't have enough motivation, then providing access to Internet, is not going to make a difference.

So the key to a smarter planet does not lie in providing internet. But in installing enough motivation, imagination and a quest for knowledge and free thought in younger generations.

But sadly, the Internet of today seem to work against this by providing perpetual distraction and addictive/useless chitchat across the world......

Re: SpaceX plans worldwide satellite Internet with low latency, gigabit speed

#276

Post by inimino »

imw wrote: post #267
adnzzzzZ wrote: post #239

Earlier quoted context omitted.

Breitbart is far from a fringe community. Just because you didn't see it growing dramatically over the past few years it doesn't mean they have a small audience.

Just because they're numerous doesn't mean they're not a lunatic fringe.

Lunatic, perhaps, but "fringe" actually does imply numeric inferiority.

Re: SpaceX plans worldwide satellite Internet with low latency, gigabit speed

#277

Post by Tepix »

nickparker wrote: post #14
lettergram wrote: post #3

Does anyone know: (A) the potential lifespan of these satellites are? (B) Why has this not been done to date? I assume SpaceX expects that it'll be relatively affordable since they can reuse rockets. (C) Will this impact the launch capabilities of future rockets (4500 satellites are a lot)? My assumption is that the low earth orbit will likely aid in destroying those satellites as opposed to leaving them up there at…

A) The technical attachment lists the lifespan as 5 to 7 years B) It's a triple play of radically reduced launch costs, rapidly dropping space hardware costs thanks to growth in the market, and improving RF tech to greatly increase the bandwidth such a constellation can provide. Ubiquitous connectivity is a great example of a technology that's going to happen because of the high level industry trends. The interesting…

They will not deorbit by themselves at 1100km, they will be brought down to 300km to deorbit after 5-7 years

Re: SpaceX plans worldwide satellite Internet with low latency, gigabit speed

#278

Post by krige »

imw wrote: post #267
adnzzzzZ wrote: post #239

Earlier quoted context omitted.

Breitbart is far from a fringe community. Just because you didn't see it growing dramatically over the past few years it doesn't mean they have a small audience.

Just because they're numerous doesn't mean they're not a lunatic fringe.

Just because you disagree with them doesn't mean they're any more lunatic than, say, Podesta.

Re: SpaceX plans worldwide satellite Internet with low latency, gigabit speed

#279

Post by dingaling »

bcook wrote: post #261
nickpsecurity wrote: post #236

Earlier quoted context omitted.

Look up the connection between Einstein's general relativity and GPS accuracy for more fun. Especially early on in its deployment.

That's actually a myth, since the GPS satellites all experience a similar relativistic time skew. http://www.alternativephysics.org/book/GPSmythology.htm "The presence of Special and General Relativity effects has no bearing on the accuracy of GPS operation. In summary, it wouldn’t matter whether clocks aboard GPS satellites ran faster or slower than Earth’s clocks or even changed their speed each day. Just so long a…

That page constructs its own argument and then deconstructs it. It doesn't actually disprove the OP's statement.

The reason that GR and SR have "no bearing" is because they've already been designed into the system...

From "Understanding the NAVSTAR" 2nd Edition, by Tom Logsdon ( one of the designers of the system ) the time-dilation is compensated through:

1. Off-setting the clock ticking-rate during manufacture of each satellite.

2. Applying a unique onboard corrective factor according to the eccentricity ( egg-shapedness ) of each satellite's current orbit. The latter is correction is constantly recalculated for each satellite.

Without these corrections against relativistic effects the accuracy would suffer by 14 nm after 24 hours ( without tick-offsetting ) and 100 feet or so per day due to orbital eccentricity.

Re: SpaceX plans worldwide satellite Internet with low latency, gigabit speed

#280

Post by hueving »

hackuser wrote: post #225
andrewksl wrote: post #197

Earlier quoted context omitted.

You're right: Knowledge shouldn't be the end goal, but I think you're overstating the effect of fringe communities on the internet. Consider that for many people on Earth, getting access to the internet takes them from the knowledge shared amongst the members of their community to the collective knowledge of world. That's quite a leap, and I'd argue that having to read flat-earther nonsense once in a while is a price…

> I think you're overstating the effect of fringe communities on the internet. Some believe that fringe information was a major factor in the U.S. Presidential election. A leader of a fringe community is the chief political advisor to the most powerful person in the world-elect.

>Some believe that fringe information was a major factor in the U.S. Presidential election.

Yes, but Trump won despite the fringe information against him.

See why these political posts are vapid garbage that do nothing to add to the conversation?

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