thermodynthrway

Too late to edit so replying to myself. I was mostly wrong. The GPS limits are much higher than I thought, and accuracy of INS is too low, although I still think that limit is artificial.

I would argue that most websites have a lifetime similar to the components :). For the ones that don't, backwards compatibility on the web is amazing, only thing to worry about is security vulns

Easy to cause it by combining bootstrap components and JQueryUI.

In React you can "scope" a components CSS so none of the styling leaks out

It's okay, I was wrong about what the limits are too. They've been increased a lot

Java Applets were before their time. It took JS/HTML the good part of a decade to catch up functionality and performance-wise

Possible maybe but unusual. 99% of ham is narrowband, GPS is spread across a megahertz. Somebody goofed and made a TV tuner chip that could be used as an SDR at that sample rate, and I'm sure the powers that be arent happy.

You might be right but I have doubts. Most weapons are INS guided despite the long fly times of cruise missiles etc. ITAR has a massive chilling effect on development, I wouldn't be surprised if we had error rates of less than a meter a day in mobiles if development wasn't severely curtailed

Fibre optic gyros can be miniturized to millimeter dimension, if it wasn't for ITAR.

High end civilian IMU's typically use mechanical gyros which have been obsolete for decades. Also, a phone isn't typically moving constantly like the oceans so error rates would be lower.

The limits are higher altitude and faster speed then you've ever been. If the Concorde was around you would see it firsthand. Weapons would be worthless against first world defences at airliner height and speed. Gps receivers shut down on weather balloons regularly, it's a known issue

The limits are real, encoded in public law. I don't understand how you could possibly disagree with me on this point

Yes. Look at the ham hobby, hardly any of them can pick up GPS signals, despite the technology being literally everywhere

The real answer is star navigation at night and interial + sun guided during the day. Phone hardware is perfectly capable but ITAR says otherwise. There's a reason why every legal GPS receiver shuts down after altitude or speed limits are exceeded. Too easy to make weapons that fly in your window from hundreds of miles away, basically

Exactly why I said 20 years! The hopeless diamond. I would still delete this if real. Even though you didn't give away anything of substance it's enough to be marked a traitor

All satellite nagivation systems are trivially jammable. They use DSSS to spread out codes and resist jamming but signal levels are still so weak at the surface it's trivial to block.

Most phones are compatible with GPS(US) +Galileo(Europe)+Glonass(Russia). Most of them also report which constellation the locks are from. GPS status and toolbox on android is a fun way to see what you're connected to.

What we need, and will probably get soon, is inertial guidance based on laser ring or fibre optic gyros in mobiles. You get a location fix every week or so and it starts out much more accurate than gps.

The US system was first by maybe a decade or more so support is nearly universal. The other systems are largely copycat, purposely compatible with existing GPS receivers.

That's why it seems like we're relying on the US for GPS, they invented it and had a full constellation in orbit before anyone else even thought of it.

Of course we're on the internet which was also invented by the US govt so I'm not so surprised why "the backups for this backbone of the global economy have to be American" in reference to GPS at least

Not surprised, but you might want to delete this. If there's nothing on the internet but this post I would keep quiet.

I use long lasting throwaways but it's trivial to find me. If nobody has heard about something you haven't either. As much as I don't like mysterious technomagic I understand the reasons, I'm just really curious

Edit: just for the luls I'll guess that it's a giant radar/bunker complex. Russian/asian nukes tend to come from the Northwest amiright. Probably in Oregon or maybe Alaska. Either missle defence or early warning

Not a big believer in traditional conspiracy theories. But, there's a lot of evidence that the US military has a lot more than they let on.

I mean, GPS, the internet, strong encryption (look up history of DES). Much of what we take for granted came from black or semi-black US military projects. Leaked out I guess, sometimes literally.

God knows what's out there now, but UFO sightings are a reasonable place to start. Hypersonic transport. Plasma stealth. Nuclear engines. EMP, railguns and laser weapons.

What's made public is a tiny fraction of what's already out there. Terrifying but fascinating at the same time.

Funny that we already have weapons powerful enough to end the species but advancement continues.

Most people don't realize, but patents important enough are, and always have been, immediately been appropriated secret. A little known purpose of the patent office is to keep the lid on anything truly ground shaking.

And that's where my conspiracy theories start. There's so much out there kept from the rest of the world. I guess in 20 years or so we'll know what they've got now