They just need to make the seals good enough that the helium stays in longer than it takes for some other critical component to fail. Nothing lasts forever, including non-helium filled drives.
They probably sealed the enclosure just good enough that something else (mechanical bearings, motor, etc.) will likely fail before gaseous exchange becomes the problem.
drive heads use Bernoulli's principle to 'fly' an incredibly small distance above the platter. Take the gaseous medium out, and you end up with a record needle instead of a magnetic read / write head.
they're not building 1950's style switched telephone systems in Africa either - they're building cellular networks because it's the modern way to do things.
The so-called 'high speed rail" that has been proposed in the US is a fucking joke, and a very expensive one at that. I'll give you a hint - the majority of the proposed high speed rail corridors are a whopping 20 mph over what Amtrak currently does.
You really need to adjust your idea of timing. You can't instantly accelerate and decelerate without liquefying your passengers internal organs. You would have a maximum acceleration rate, as well as a maximum braking rate in order to not kill people.
Also, you can't just build this next to existing freight rail lines - the US freight rail system was designed for a maximum straight-line speed of 69 MPH. The route you suggest has a HUGE turn in it from headed east-southeast towards Puyallup, to due north towards Auburn. Even if you could take that thing at the speeds talked about with these Hyperloop systems, the centrifugal forces would cause severe "distress" on the passengers.
They chose the I-5 corridor through central California for a very good reason - it's very flat (except for when you get to the San Gabriel mountains right before LA), and very VERY straight.
A lot of the energy of a space launch is spent getting above atmospheric thickness - this is why launches are vertical on the ground, and then perform a "gravity turn" after getting above 10km. Getting out of the atmosphere is fairly easy - they proved that with the X-25 rocket plane and the initial Mercury launches. It takes a whole shitload more energy to stay up there, because you need horizontal velocity, which you're not going to get in the scheme you suggest.
Also, instantly transitioning from less than half of an atmosphere of pressure in a tube to a full atmosphere of pressure while at supersonic speed sounds like a fantastic way to destroy anything / anyone you're attempting to launch.
There's actually some things that the US Government gets right with transportation.
The freight rail system in the US is the envy of Europe. We move billions of tons of cargo untold miles incredibly efficiently, over massive mountain ranges. Air travel, for all the annoyances it creates through security theater and companies that want to siphon every last nickel from your wallet for checked bags and seats that aren't akin to torture, is more affordable then ever, with traffic control and airports that are operated by insane numbers of government authorities.
The problem is that rail network isn't designed with passengers in mind, and the rails are owned by the freight companies - so while it's fantastic at moving freight, the passenger trains get second priority to freight trains, and the rails lay in parts of town where people aren't so you have a 'last mile' problem.
Don't forget that most mass transit projects end up being pork for property developers and public employee unions, and aren't actually designed to be cost-efficient or efficient from a passenger-miles traveled perspective. Projects usually go over-budget, and no attention is ever paid to operating costs after the thing is built, causing transit agencies to cut services elsewhere to keep it running, because the fare box doesn't even come close to paying for operations.
Urban Streetcar projects in the 1990s were sold as a way to circulate people around a district. That turned out to be horseshit, so now they are sold as an inflator of property value, because tracks can't be moved as easily as a bus stop.
And why do bus stops move? Because they can pay a guy to move a bench and a sign, and the route gets more efficient, moving the bus to where people actually are, or where they want to go. And this is seen as a bad thing, for some reason.
And yet there are transportation modes that continue working fantastically, because the advantages far outweigh the costs and horseshit. People don't have issues with air travel, even though the experience is as close to public transit as you can get - you go to a big government paid-for terminal called an 'airport' where you get in a big metal tube filled with strangers, where you then sit for a non-trivial amount of time until it gets to another government paid-for terminal. Then you pack up your shit and leave.
The only difference between air travel and public transit is that the airplane is owned and operated by a private entity, and that airplanes get you where you're going way faster than just about any other viable alternative.
Thanks to Handbrake and Plex, I don't think I've seen that FBI warning in years. The first and only destination that any optical media-based movie I purchased goes to is the BD drive on my desktop, where it gets ripped, stored, and cataloged. Then the disc goes back into it's box, and that goes into another box in storage.
Your argument is rational, but depends on the content owners (MPAA) to understand the current state of technology, and then write contracts with distribution (Netflix) that are also rational.
Do you see the flaw yet? The MPAA, in no way, could be described as rational, or understanding of the current state of technology.
I have a friend that had an 'evil' D8. Totally kept screwing him over, so he opened the sliding back door and chucked it out into the late night darkness as hard as he could. A week later we found it back in the house...
Or, the idea that I had in a comment above: if you're using your smartphone as electronic dice for tabletop gaming, use the microphone on it and sample 40 frequencies determined by the pseudo RNG on the device so that it can't be 'gamed' by someone with perfect pitch or something.
Anywhere I've ever played tabletop games, there's more than enough ambient noise going on to sufficiently randomize - people having side conversations, background music, dog claws clicking on flooring, overhead air traffic, TV in the next room, HVAC running, refrigerator compressor, etc.
I wonder if one couldn't use the microphone on a smartphone to use ambient audio as the RNG seed - I'd imagine that depending on the spectrum monitored combined with real world differences in ambient sound (overhead air traffic, HVAC running or not, background music, shrieking baby in the next room, loud motorcycle on the street outside, etc.) that this could be sufficient for initializing the RNG. Especially if the audio sample isn't just done once, but done whenever a 'roll' is executed.
Well, it's interesting, because the question is on the "elliptic curve cryptography" which is a method of generating keys that are more efficient than the older, larger RSA-style keys. So, technically, you could still implement HTTPS with RSA cryptography, which would increase the work done on both ends of the secure connection to encrypt / decrypt with the same level of security.
As someone mentioned above though, there is prior art even with ECC-generated keys by almost a decade to when the patent was granted. Hopefully this one gets shitcanned.
I'm sure that in no way, could such an adapter have power pass-through, allowing both headphones to be plugged in, and another lighting cable to supply current. You know, exactly like they did with the 34-pin iPod HDMI video adapter.
What the hell are you even talking about? When Apple deleted the floppy from the iMac, all computers had a hard disk in them, as well as an operating system running from that hard disk. Plus, the iMac was only one line that Apple was selling - the Power Macintosh still had a floppy drive, and that's what anyone would actually be running Quark on if they knew what the fuck they were doing.
Boot floppy? Post System 6? Only if you're a moron, or have a dead System Folder on the hard disk. Either way, boot floppies for every-day use were dead after like 1992 in the Mac universe.
The US has said they won't (as a government) lay claim to extraterrestrial material returned to the US from space in this law.
Where the fuck does Russia and China come into this again? They're free to pass their own laws saying that they will confiscate (or not) any material brought back to their territories, and then we'll see just how much shit gets de-orbited into their territory.
I know that if I was running some mining operation, and a particular nation was overtly hostile towards my rights as the person who went out there to get this shit and bring it back, I'd make damn sure that I'm landing it far away from them. The world is a big place, and it would be rather easy to compute a landing trajectory that misses Asia completely. NASA has been doing it for 50+ years.
Except that's not what the US is doing. They are granting property rights to material returned from space to the US. Essentially they are saying "if you go out there and mine a bunch of shit, and then return it to the US, the US Government will not confiscate said shit."
There is no granting of any rights to anything not on Earth, in the territorial borders of the US, at the time of the granting. This is completely consistent with existing international and maritime law.
You seem to have comprehension issues. What the US Government codified is that they won't confiscate stuff that is returned from space to it's territory.
How is not taking shit that is on Earth, from people also on Earth, laying national claim to a body in space?
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The neck problems are actually being referred to as "Text Neck" which is hilarious.
Attenuation. As it turns out, antenna size and shape actually matter.
They just need to make the seals good enough that the helium stays in longer than it takes for some other critical component to fail. Nothing lasts forever, including non-helium filled drives.
They probably sealed the enclosure just good enough that something else (mechanical bearings, motor, etc.) will likely fail before gaseous exchange becomes the problem.
drive heads use Bernoulli's principle to 'fly' an incredibly small distance above the platter. Take the gaseous medium out, and you end up with a record needle instead of a magnetic read / write head.
they're not building 1950's style switched telephone systems in Africa either - they're building cellular networks because it's the modern way to do things.
The so-called 'high speed rail" that has been proposed in the US is a fucking joke, and a very expensive one at that. I'll give you a hint - the majority of the proposed high speed rail corridors are a whopping 20 mph over what Amtrak currently does.
You really need to adjust your idea of timing. You can't instantly accelerate and decelerate without liquefying your passengers internal organs. You would have a maximum acceleration rate, as well as a maximum braking rate in order to not kill people.
Also, you can't just build this next to existing freight rail lines - the US freight rail system was designed for a maximum straight-line speed of 69 MPH. The route you suggest has a HUGE turn in it from headed east-southeast towards Puyallup, to due north towards Auburn. Even if you could take that thing at the speeds talked about with these Hyperloop systems, the centrifugal forces would cause severe "distress" on the passengers.
They chose the I-5 corridor through central California for a very good reason - it's very flat (except for when you get to the San Gabriel mountains right before LA), and very VERY straight.
A lot of the energy of a space launch is spent getting above atmospheric thickness - this is why launches are vertical on the ground, and then perform a "gravity turn" after getting above 10km. Getting out of the atmosphere is fairly easy - they proved that with the X-25 rocket plane and the initial Mercury launches. It takes a whole shitload more energy to stay up there, because you need horizontal velocity, which you're not going to get in the scheme you suggest.
Also, instantly transitioning from less than half of an atmosphere of pressure in a tube to a full atmosphere of pressure while at supersonic speed sounds like a fantastic way to destroy anything / anyone you're attempting to launch.
There's actually some things that the US Government gets right with transportation.
The freight rail system in the US is the envy of Europe. We move billions of tons of cargo untold miles incredibly efficiently, over massive mountain ranges. Air travel, for all the annoyances it creates through security theater and companies that want to siphon every last nickel from your wallet for checked bags and seats that aren't akin to torture, is more affordable then ever, with traffic control and airports that are operated by insane numbers of government authorities.
The problem is that rail network isn't designed with passengers in mind, and the rails are owned by the freight companies - so while it's fantastic at moving freight, the passenger trains get second priority to freight trains, and the rails lay in parts of town where people aren't so you have a 'last mile' problem.
Don't forget that most mass transit projects end up being pork for property developers and public employee unions, and aren't actually designed to be cost-efficient or efficient from a passenger-miles traveled perspective. Projects usually go over-budget, and no attention is ever paid to operating costs after the thing is built, causing transit agencies to cut services elsewhere to keep it running, because the fare box doesn't even come close to paying for operations.
Urban Streetcar projects in the 1990s were sold as a way to circulate people around a district. That turned out to be horseshit, so now they are sold as an inflator of property value, because tracks can't be moved as easily as a bus stop.
And why do bus stops move? Because they can pay a guy to move a bench and a sign, and the route gets more efficient, moving the bus to where people actually are, or where they want to go. And this is seen as a bad thing, for some reason.
And yet there are transportation modes that continue working fantastically, because the advantages far outweigh the costs and horseshit. People don't have issues with air travel, even though the experience is as close to public transit as you can get - you go to a big government paid-for terminal called an 'airport' where you get in a big metal tube filled with strangers, where you then sit for a non-trivial amount of time until it gets to another government paid-for terminal. Then you pack up your shit and leave.
The only difference between air travel and public transit is that the airplane is owned and operated by a private entity, and that airplanes get you where you're going way faster than just about any other viable alternative.
Thanks to Handbrake and Plex, I don't think I've seen that FBI warning in years. The first and only destination that any optical media-based movie I purchased goes to is the BD drive on my desktop, where it gets ripped, stored, and cataloged. Then the disc goes back into it's box, and that goes into another box in storage.
Your argument is rational, but depends on the content owners (MPAA) to understand the current state of technology, and then write contracts with distribution (Netflix) that are also rational.
Do you see the flaw yet? The MPAA, in no way, could be described as rational, or understanding of the current state of technology.
I have a friend that had an 'evil' D8. Totally kept screwing him over, so he opened the sliding back door and chucked it out into the late night darkness as hard as he could. A week later we found it back in the house...
Or, the idea that I had in a comment above: if you're using your smartphone as electronic dice for tabletop gaming, use the microphone on it and sample 40 frequencies determined by the pseudo RNG on the device so that it can't be 'gamed' by someone with perfect pitch or something.
Anywhere I've ever played tabletop games, there's more than enough ambient noise going on to sufficiently randomize - people having side conversations, background music, dog claws clicking on flooring, overhead air traffic, TV in the next room, HVAC running, refrigerator compressor, etc.
I wonder if one couldn't use the microphone on a smartphone to use ambient audio as the RNG seed - I'd imagine that depending on the spectrum monitored combined with real world differences in ambient sound (overhead air traffic, HVAC running or not, background music, shrieking baby in the next room, loud motorcycle on the street outside, etc.) that this could be sufficient for initializing the RNG. Especially if the audio sample isn't just done once, but done whenever a 'roll' is executed.
Well, it's interesting, because the question is on the "elliptic curve cryptography" which is a method of generating keys that are more efficient than the older, larger RSA-style keys. So, technically, you could still implement HTTPS with RSA cryptography, which would increase the work done on both ends of the secure connection to encrypt / decrypt with the same level of security.
As someone mentioned above though, there is prior art even with ECC-generated keys by almost a decade to when the patent was granted. Hopefully this one gets shitcanned.
The matte finish display was a BTO option until the 'retina' MacBook. Now they're all glossy, which totally sucks.
Why do people assume that a lightning audio adapter that doesn't exist, wouldn't allow pass-through charging from another lighting port?
I'm sure that in no way, could such an adapter have power pass-through, allowing both headphones to be plugged in, and another lighting cable to supply current. You know, exactly like they did with the 34-pin iPod HDMI video adapter.
What the hell are you even talking about? When Apple deleted the floppy from the iMac, all computers had a hard disk in them, as well as an operating system running from that hard disk. Plus, the iMac was only one line that Apple was selling - the Power Macintosh still had a floppy drive, and that's what anyone would actually be running Quark on if they knew what the fuck they were doing.
Boot floppy? Post System 6? Only if you're a moron, or have a dead System Folder on the hard disk. Either way, boot floppies for every-day use were dead after like 1992 in the Mac universe.
The US has said they won't (as a government) lay claim to extraterrestrial material returned to the US from space in this law.
Where the fuck does Russia and China come into this again? They're free to pass their own laws saying that they will confiscate (or not) any material brought back to their territories, and then we'll see just how much shit gets de-orbited into their territory.
I know that if I was running some mining operation, and a particular nation was overtly hostile towards my rights as the person who went out there to get this shit and bring it back, I'd make damn sure that I'm landing it far away from them. The world is a big place, and it would be rather easy to compute a landing trajectory that misses Asia completely. NASA has been doing it for 50+ years.
Except that's not what the US is doing. They are granting property rights to material returned from space to the US. Essentially they are saying "if you go out there and mine a bunch of shit, and then return it to the US, the US Government will not confiscate said shit."
There is no granting of any rights to anything not on Earth, in the territorial borders of the US, at the time of the granting. This is completely consistent with existing international and maritime law.
You seem to have comprehension issues. What the US Government codified is that they won't confiscate stuff that is returned from space to it's territory.
How is not taking shit that is on Earth, from people also on Earth, laying national claim to a body in space?
There's a lot more than one. Hint: offshore oil platforms are technically undersea mining operations.