You have no way of knowing if your internet connection is trustworthy - there was that incident where 30% of net traffic was routed through China for a time.
Ion thrusters. Using solar panels and a trivial amount of xenon (I imagine redesigning for a more common gas might be desirable though) you could maintain station easily.
This type of problem is why fusion is also considered an ideal propulsion system - because the fusion reaction itself is an electrically responsive plasma, so you can go more or less directly from energy generation -> propulsion.
Encryption really does seem like a bad idea for these types of systems though. There's a very narrow slice of emergencies when it's going to be needed (an active, hostile force is present) and in those cases the type of response we're talking about is more suited to the military then civilian responders.
Whereas making sure that their are multiple redundant ways to get people connected together seems way more important.
That's not really a thing worth worrying about. It's not like we're building coal power plants to make bricks. The production method adapts to the environment - if solar took off tomorrow, then you'd see concentrated solar brick making factories soon after that.
Exactly. If you have malware, you have malware - it can establish whatever outgoing connections it needs to in order to function. Malware could connect to the Tor network on port 443 and act as a server there.
You can't have net access AND block outgoing traffic in any sort of useful manner.
There's also the issue that the only time anyone shown a correlation is when they pick an arbitrary 3 or 7 year period. Try and extend the data beyond coincidental correlations and it falls apart.
Dozens of protocols like to, or need to, open inbound ports for clients to back-connect to. FTP, various VPNs, SIP, IRC etc.
Now we can work around that with NAT and port forwarding, but we absolutely can't fix that once we have carrier-grade NAT and the user can't forward ports anymore. Bye bye UPnP (which is the only reason things "seem" to work now), and bye bye any service which needs a mediator if you can't get a mediator server on the unNAT'd internet. And just watch as entry costs skyrocket.
X-Rays can penetrate metal. For example, a standard thing in car fabrication is to X-ray the welds to look for defects.
It's a matter of intensity as with all things - for example your hands look pretty opaque under normal sunlight, but if you put a torch up against them you can see the glow coming through quite clearly.
The issue here is that the intensity of X-Ray radiation you'd use to scan through a steel and aluminium car body is considerably higher then that used in a conventional medical X-Ray.
I think that's a great a feature though - if you use a couple of different machines with different platforms, being able to map what goes where would be super-handy.
It's also worth noting that modern hard disks already position the read head staggeringly close to the platter already - on the order of 10nm of clearance or less. And this is in a consumer electronic device.
Most of the constraints of STM and AFM are related to the fact that they are general purpose, highly accurate devices, intended to study arbitrary samples (and work down to the 0.1 nm type scales while doing it).
Significant also is people's lifestyles under those conditions. I would bet you when the temperature goes to 40 all work and activity pretty much shuts down, and people stay out of the sun and go to some lengths to stay cool.
This isn't a "bear the pain" type thing its a "you will die because the physical limits of your cellular protein are exceeded" thing.
You know why you can survive 40 degrees C in Africa?
Because it's dry. The humidity is low, and you can sweat. You can cool yourself by evaporation.
Take a look in Asia, or any nation near the equator. In the "wet" season the temperature isn't 40 degrees. Yet it feels hotter - why? Because the humidity is ~100%. You can't sweat. You do, but it doesn't cool you because it doesn't evaporate.
If the temperature rises above human body temperature under those conditions, the environment starts imposing an external thermal load, and you will die of heat exhaustion in a few hours at most.
What I'd prefer us to do is wrap a few major comets in Mylar, and set them up for a nudge onto collision course with Venus. Let's shear it's atmosphere off and dump some water there.
It would be a 100 to 1000 years effort, but there's a lot of valuable science to be done by the type of missions it would require. It also supports the kind of technology we'd need to prevent such a thing happening to Earth.
It's also braindead how it works with the System File Checker. It's a whole system to compare and verify DLL versions and contents, but has absolutely no useful provisioning to restore those system files from an external source if the WinSXS versions have checksum mismatches.
You would think, with all the activation garbage, that MS would've put up some servers to let you download new files from them - but nope.
For all Linux's faults, refreshing a package is usually incredibly straightforward.
rdiff-backup in my experience is just too slow, at least when messing around with it on my home server.
That might be fine, but the longer it takes the greater chance of getting files changing while the backup is going on - which means you need a snapshot system (and if you have that, you don't need rdiff-backup).
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Isn't the basic answer "use encryption"?
You have no way of knowing if your internet connection is trustworthy - there was that incident where 30% of net traffic was routed through China for a time.
They're being developed for satellite orbital maintenance, so pretty small.
The UK has been implementing 1984 as a good idea for a while now. That said, the US isn't doing substantially better in that regard.
Ion thrusters. Using solar panels and a trivial amount of xenon (I imagine redesigning for a more common gas might be desirable though) you could maintain station easily.
There's a 150m cave in the moon which was discovered a few months back. Just seal up the entrance to that - no need to build a tunnel.
This type of problem is why fusion is also considered an ideal propulsion system - because the fusion reaction itself is an electrically responsive plasma, so you can go more or less directly from energy generation -> propulsion.
Encryption really does seem like a bad idea for these types of systems though. There's a very narrow slice of emergencies when it's going to be needed (an active, hostile force is present) and in those cases the type of response we're talking about is more suited to the military then civilian responders.
Whereas making sure that their are multiple redundant ways to get people connected together seems way more important.
I was referring to "too expensive to be worth doing on Earth under normal circumstances".
No reason you couldn't modularize the fabrication. Or the robot. Or build the house in a factory, then truck it out, finished, to it's final location.
That's not really a thing worth worrying about. It's not like we're building coal power plants to make bricks. The production method adapts to the environment - if solar took off tomorrow, then you'd see concentrated solar brick making factories soon after that.
Same with concrete really.
Exactly. If you have malware, you have malware - it can establish whatever outgoing connections it needs to in order to function. Malware could connect to the Tor network on port 443 and act as a server there.
You can't have net access AND block outgoing traffic in any sort of useful manner.
There's also the issue that the only time anyone shown a correlation is when they pick an arbitrary 3 or 7 year period. Try and extend the data beyond coincidental correlations and it falls apart.
Dozens of protocols like to, or need to, open inbound ports for clients to back-connect to. FTP, various VPNs, SIP, IRC etc.
Now we can work around that with NAT and port forwarding, but we absolutely can't fix that once we have carrier-grade NAT and the user can't forward ports anymore. Bye bye UPnP (which is the only reason things "seem" to work now), and bye bye any service which needs a mediator if you can't get a mediator server on the unNAT'd internet. And just watch as entry costs skyrocket.
X-Rays can penetrate metal. For example, a standard thing in car fabrication is to X-ray the welds to look for defects.
It's a matter of intensity as with all things - for example your hands look pretty opaque under normal sunlight, but if you put a torch up against them you can see the glow coming through quite clearly.
The issue here is that the intensity of X-Ray radiation you'd use to scan through a steel and aluminium car body is considerably higher then that used in a conventional medical X-Ray.
I think that's a great a feature though - if you use a couple of different machines with different platforms, being able to map what goes where would be super-handy.
It's the S3. Other people setup there own storage and data centers, whereas Dropbox is always reselling Amazon.
It's also worth noting that modern hard disks already position the read head staggeringly close to the platter already - on the order of 10nm of clearance or less. And this is in a consumer electronic device.
Most of the constraints of STM and AFM are related to the fact that they are general purpose, highly accurate devices, intended to study arbitrary samples (and work down to the 0.1 nm type scales while doing it).
Significant also is people's lifestyles under those conditions. I would bet you when the temperature goes to 40 all work and activity pretty much shuts down, and people stay out of the sun and go to some lengths to stay cool.
This isn't a "bear the pain" type thing its a "you will die because the physical limits of your cellular protein are exceeded" thing.
Causing some rocks and ice in space to hit a planet is somewhat easier then a large scale engineering process requiring refined resources.
You know why you can survive 40 degrees C in Africa?
Because it's dry. The humidity is low, and you can sweat. You can cool yourself by evaporation.
Take a look in Asia, or any nation near the equator. In the "wet" season the temperature isn't 40 degrees. Yet it feels hotter - why? Because the humidity is ~100%. You can't sweat. You do, but it doesn't cool you because it doesn't evaporate.
If the temperature rises above human body temperature under those conditions, the environment starts imposing an external thermal load, and you will die of heat exhaustion in a few hours at most.
The thing is, if you're going to develop a drill, the better place to send it is Europa.
What I'd prefer us to do is wrap a few major comets in Mylar, and set them up for a nudge onto collision course with Venus. Let's shear it's atmosphere off and dump some water there.
It would be a 100 to 1000 years effort, but there's a lot of valuable science to be done by the type of missions it would require. It also supports the kind of technology we'd need to prevent such a thing happening to Earth.
Because like most things in life, finding out if it even satisfies the basic requirements is a good first step?
It's also braindead how it works with the System File Checker. It's a whole system to compare and verify DLL versions and contents, but has absolutely no useful provisioning to restore those system files from an external source if the WinSXS versions have checksum mismatches.
You would think, with all the activation garbage, that MS would've put up some servers to let you download new files from them - but nope.
For all Linux's faults, refreshing a package is usually incredibly straightforward.
rdiff-backup in my experience is just too slow, at least when messing around with it on my home server.
That might be fine, but the longer it takes the greater chance of getting files changing while the backup is going on - which means you need a snapshot system (and if you have that, you don't need rdiff-backup).