They might also want to try out tethered satellites. Instead of a full space elevator right from the start, try suspending the "comms/sensor" bits of the satellite closer to earth, with the counter weight at the other end (solar panels etc), so that the satellite is still in geostationary orbit, but you have much better comms latencies.
GEO is 35786km up. Is putting a 30000km tether in GEO realistically cheaper than putting a satellite constellation in LEO?
It is not obvious that the material of the thing is unimportant, it cannot be determined weather the gauge or cross-sectional shape of the material used is of import.
Rule of thumb - the thicker the antenna element, the lower its "Q", and the less sharply tuned it will be for a given frequency. For an extra-wideband antenna such as a UHF TV antenna, a low Q is appropriate. But it really doesn't make much difference until you do stuff like substitute 1/2" copper pipe for 12AWG wire.
If you really need a heavy sword, use a little Tungsten filler. It's 19.25 g/cc, has a high tensile strength, and makes steel stronger as an alloy. It lost out to DU because it typically has to be imported from China (and the US wanted to use the DU, not store it indefinately). DU is also pyrophoric.
let me just say that I'm already on the case to return the favor.
Can you elaborate on that?
As a mathematician and computer scientist, I'm working on a computer program using some pretty heavy-lifting math to allow people to psychoanalyze themselves.
Why do you mention computers?
I call it the ELIte analyZing mAchine, or ELIZA for short.
Why do you mention computers?
How does that make you feel, Mr. Psychologist Person?
Is that a theoretical risk or does it actually happen?
I've only seen non-electrolytic capacitors explode or deform a couple times, and I think in every case they were over-volted. Of course, that's anecdotal - but I've never actually seen a Li-Ion battery catch fire either. And I can't see how it wouldn't happen in the event of physical (especially puncture) damage to a cell (such as in a car accident).
Any form of energy storage has risks associated with it, but one way I use to judge that is how fast the energy can be released in an accident. For example, a flywheel can burst instantaneously. A pressure tank can fail quickly as well. Gasoline can explode but simply burns when in liquid form. Most rechargeable batteries can, err, "vent with flame". A 20000uF 200V cap (quite large, but smaller than a car would have) contains enough energy (800 joules) to vaporize a paperclip placed across its contacts (and will do so in milliseconds if the ESR is low enough).
Assuming that your local police are really stupid and/or bought off...
and would have to hire a lawyer as to why I shouldn't be extradited to China
China would be footing your legal bill (18 USC 3195) but even the average public defender could argue that successfully:
The US has no extradition treaty with China. (Wikipedia)
Even if they did, you'd have to actually commit a crime in Chinese jurisdiction (i.e. be in China) (18 USC 3184).
Even if you did, the crime would have to be a violent one (18 USC 3181).
Even if it was, it'd also have to be a crime in the US (18 USC 3181).
Even if I persuade a judge to not grant the extradition request (in all likelihood, at great expense to me), I could never travel outside the US as I could be arrested at any time and extradited from a country with no vested interest in preventing a foreigner from being extradited to China.
The concept of nationalism is based on the idea that your country will protect you. It's kind of lost on a lot of Americans since it's been quite a while since we've gone toe-to-toe with a foreign army on our own soil. But if such a thing happened, I would expect a lot of diplomatic saber-rattling, perhaps an embargo of the country that extradited you (likely ruining their tourism economy), and if that fails, a military response. With such a flowchart on most leaders' minds, they will generally refuse extraditions for political reasons.
Of course it's bad that an expensive aircraft crashes, but it's still just money
True, but money in the end represents human effort. A certain amount of money represents a lifetime of human effort. And while wasting that amount of money does not kill that person, it does negate the lifetime of sacrifice and toil that they gave to humanity.
(Of course, the irony of using such an argument in a discussion about a killing machine is not lost on me.)
At a certain point of "security" people will choose not to because it's way too much of a hassle
Yeah, I mean, if writing a check to someone meant that they knew they'd actually get the money, then retailers would definitely stop accepting checks. If writing a check to someone meant that they didn't get reusable routing and account numbers, then consumers would definitely stop writing them. I mean, who in their right mind would use something so difficult?
What do you think would happen if, say, Utah lost proper government for a while and became a place ruled purely by the whims of religious men with absolute power and no desire to let things change?
Fifty states and you picked that one as an example?:)
the laws don't protect against stupid technicalities
I would argue that they do. The BSA, however, does not concern itself with holding you to the letter of the law. The BSA concerns itself with getting as much money from you as possible under the threat of holding you to the letter of the law.
I want to see a legal requirement to the tune of "all licenses are transferable"
It makes me wonder, though -- they say 32 MJ per shot, but how much energy is in a normal-sized conventional weapon? They also say Mach 8, but how fast are normal rounds fired?
Wikipedia says the 16" Mark 7 fires a 1225kg shell at 820m/s, Google says 1225kg*(820m/s)^2 = 823MJ, and 820m/s = Mach 2.4. It's likely quite a bit more than 823MJ of energy input because only a fraction of the power from a gun goes into the round.
Of course, if you meant conventional as in "assault rifle", Google says a 5.56 NATO round is roughly 1500-1700 joules.
If only someone would point that out to Microsoft.. the most obvious exception to your relationship.
No kidding. If it wasn't for Microsoft, I could have used the word "quite" instead of "often". It's not enough to have millions of beta testers (err, I mean customers) - you have to provide a way to listen to them. Collecting $99 or $249 to open a PSS ticket (and then spout worthless advice such as "do an in-place Windows reinstall" instead of providing a fix) doesn't cut it.
Wiping the machine is a 100% guaranteed way to fix a software issue
Well, it's a 100% guaranteed way to put a well-known set of software on a machine. Assuming you mean "wipe and reimage", that set of software will have thousands upon thousands of known, documented issues and even more undocumented ones. No matter how many times you reimage it.
FGS you supplied the link yourself above just read it!
I'll presume you're talking about the Molniya orbit link. I didn't fully explain myself when I intentionally skipped over the Uses section. Here's a list of what that section mentions and why:
The same orbits, with slight adjustments, were also used by some Soviet spy satellites, with the apogee point over the continental United States (CONUS)
An apogee above the continental US puts your perigee (where you argue the photographs are being taken) over the Southern Ocean.
One such example is the US-KS early-warning satellite that watches for US missile launches
This (and likely the one above as well) is a missile launch detection satellite. While such a satellite is indeed a spy satellite, that's not what I was discussing and not what I assumed you were discussing either (if that's not the case, then my apologies). I was discussing imagery intelligence satellites.
The US has also made some use of the Molniya orbits for spy satellites of their own. The same long loitering time over high latitudes that makes them useful for broadcasting communications in Russia makes them just as useful for listening to Russian communications.
Again, this mentions the apogee as the interesting point of the orbit, and these are not imagery intelligence satellites.
Electronic intelligence satellites called Jumpseat and their successors called Trumpet are also reported to use Molniya orbits.
Again, not imagery intelligence satellites.
Another use is the Satellite Data System (SDS), which relays data from spy satellites operating over Russia back to the US download sites for processing.
Same thing. I mentioned this particular use in an earlier reply.
It seems the Uses section makes no reference to perigee at all.
All this trouble just to try to show that simple introductory material on satellites is wrong.
I feel the same way you do, so this will be my last post in this thread.
If 270 x 100 kilometers isn't elliptical, I don't know what is.
Typos aside, that's 6378+270 kilometers at perigee and 6378+1000 kilometers at apogee. 1-2/((7378/6648)+1)=.052. For reference, earth's orbit around the sun has an eccentricity of 0.0167, and the moon's orbit around the earth is 0.0554.
Granted, all circles are ellipses, and all orbits have some eccentricity, however minute, but if you held up a picture of that USA 6 orbit and asked people to name the shape, they'd call it a circle. If they had a ruler handy, they might call it "slightly elliptical", but definitely not "highly elliptical" - your choice of words:
Highly elliptical orbits that take satellites low are what spy satellites do
There are satellites that are in highly elliptical orbits so they can get closer than those in the links above
Since "highly" is a subjective word, I might as well just throw out my opinion and let you do the same:
Any ellipse that is less eccentric than this is circular.
Any ellipse with an eccentricity less than.1 is "slightly elliptical".
Any elliptical earth orbit with one of the foci above earth's surface is "highly elliptical".
Slashdot Mirror
Or to delegate that approval. Once.
Said material melts at 88 kelvins. It'd be like galvanizing an ice cream cone.
Most SMTP servers have the ability to check a blacklisting service - so that's all you have to program.
Well, if you're trying to fall asleep, pink noise isn't bad (it sounds just like a waterfall):
sox -t nul /dev/zero -t ossdsp /dev/dsp synth whitenoise lowpass 100
("-t alsa default" if you're using ALSA)
GEO is 35786km up. Is putting a 30000km tether in GEO realistically cheaper than putting a satellite constellation in LEO?
Rule of thumb - the thicker the antenna element, the lower its "Q", and the less sharply tuned it will be for a given frequency. For an extra-wideband antenna such as a UHF TV antenna, a low Q is appropriate. But it really doesn't make much difference until you do stuff like substitute 1/2" copper pipe for 12AWG wire.
If you really need a heavy sword, use a little Tungsten filler. It's 19.25 g/cc, has a high tensile strength, and makes steel stronger as an alloy. It lost out to DU because it typically has to be imported from China (and the US wanted to use the DU, not store it indefinately). DU is also pyrophoric.
Welcome to your therapy session.
Surely not everyone?
Can you elaborate on that?
Why do you mention computers?
Why do you mention computers?
Does that question interest you?
I've only seen non-electrolytic capacitors explode or deform a couple times, and I think in every case they were over-volted. Of course, that's anecdotal - but I've never actually seen a Li-Ion battery catch fire either. And I can't see how it wouldn't happen in the event of physical (especially puncture) damage to a cell (such as in a car accident).
Any form of energy storage has risks associated with it, but one way I use to judge that is how fast the energy can be released in an accident. For example, a flywheel can burst instantaneously. A pressure tank can fail quickly as well. Gasoline can explode but simply burns when in liquid form. Most rechargeable batteries can, err, "vent with flame". A 20000uF 200V cap (quite large, but smaller than a car would have) contains enough energy (800 joules) to vaporize a paperclip placed across its contacts (and will do so in milliseconds if the ESR is low enough).
This obviously deserves further research. :>
Assuming that your local police are really stupid and/or bought off...
China would be footing your legal bill (18 USC 3195) but even the average public defender could argue that successfully:
The concept of nationalism is based on the idea that your country will protect you. It's kind of lost on a lot of Americans since it's been quite a while since we've gone toe-to-toe with a foreign army on our own soil. But if such a thing happened, I would expect a lot of diplomatic saber-rattling, perhaps an embargo of the country that extradited you (likely ruining their tourism economy), and if that fails, a military response. With such a flowchart on most leaders' minds, they will generally refuse extraditions for political reasons.
True, but money in the end represents human effort. A certain amount of money represents a lifetime of human effort. And while wasting that amount of money does not kill that person, it does negate the lifetime of sacrifice and toil that they gave to humanity.
(Of course, the irony of using such an argument in a discussion about a killing machine is not lost on me.)
Yeah, I mean, if writing a check to someone meant that they knew they'd actually get the money, then retailers would definitely stop accepting checks. If writing a check to someone meant that they didn't get reusable routing and account numbers, then consumers would definitely stop writing them. I mean, who in their right mind would use something so difficult?
The point in front of the 242%. It was a joke.
*sigh*
Err, I think you're missing the point.
Do adapters work?
Fifty states and you picked that one as an example? :)
I would argue that they do. The BSA, however, does not concern itself with holding you to the letter of the law. The BSA concerns itself with getting as much money from you as possible under the threat of holding you to the letter of the law.
Feast thine eyes: First Sale Doctrine
Wikipedia says the 16" Mark 7 fires a 1225kg shell at 820m/s, Google says 1225kg*(820m/s)^2 = 823MJ, and 820m/s = Mach 2.4. It's likely quite a bit more than 823MJ of energy input because only a fraction of the power from a gun goes into the round.
Of course, if you meant conventional as in "assault rifle", Google says a 5.56 NATO round is roughly 1500-1700 joules.
No kidding. If it wasn't for Microsoft, I could have used the word "quite" instead of "often". It's not enough to have millions of beta testers (err, I mean customers) - you have to provide a way to listen to them. Collecting $99 or $249 to open a PSS ticket (and then spout worthless advice such as "do an in-place Windows reinstall" instead of providing a fix) doesn't cut it.
At least free software gets this right.
Furthermore: The quality of software is often related to the size of the software's userbase.
That $10 million ERP package designed specifically for your industry? You'll be the very first person to hit hundreds of bugs. Guaranteed.
Well, it's a 100% guaranteed way to put a well-known set of software on a machine. Assuming you mean "wipe and reimage", that set of software will have thousands upon thousands of known, documented issues and even more undocumented ones. No matter how many times you reimage it.
"We accept arguments as a drunkard accepts a lamppost; for support, not illumination."
I'll presume you're talking about the Molniya orbit link. I didn't fully explain myself when I intentionally skipped over the Uses section. Here's a list of what that section mentions and why:
The same orbits, with slight adjustments, were also used by some Soviet spy satellites, with the apogee point over the continental United States (CONUS)
An apogee above the continental US puts your perigee (where you argue the photographs are being taken) over the Southern Ocean.
One such example is the US-KS early-warning satellite that watches for US missile launches
This (and likely the one above as well) is a missile launch detection satellite. While such a satellite is indeed a spy satellite, that's not what I was discussing and not what I assumed you were discussing either (if that's not the case, then my apologies). I was discussing imagery intelligence satellites.
The US has also made some use of the Molniya orbits for spy satellites of their own. The same long loitering time over high latitudes that makes them useful for broadcasting communications in Russia makes them just as useful for listening to Russian communications.
Again, this mentions the apogee as the interesting point of the orbit, and these are not imagery intelligence satellites.
Electronic intelligence satellites called Jumpseat and their successors called Trumpet are also reported to use Molniya orbits.
Again, not imagery intelligence satellites.
Another use is the Satellite Data System (SDS), which relays data from spy satellites operating over Russia back to the US download sites for processing.
Same thing. I mentioned this particular use in an earlier reply.
It seems the Uses section makes no reference to perigee at all.
I feel the same way you do, so this will be my last post in this thread.
Typos aside, that's 6378+270 kilometers at perigee and 6378+1000 kilometers at apogee. 1-2/((7378/6648)+1)=.052. For reference, earth's orbit around the sun has an eccentricity of 0.0167, and the moon's orbit around the earth is 0.0554.
Granted, all circles are ellipses, and all orbits have some eccentricity, however minute, but if you held up a picture of that USA 6 orbit and asked people to name the shape, they'd call it a circle. If they had a ruler handy, they might call it "slightly elliptical", but definitely not "highly elliptical" - your choice of words:
Since "highly" is a subjective word, I might as well just throw out my opinion and let you do the same: