There is a huge barrier in the cost of putting up sufficent cells to attract customers. This isn't cheap, and you can't start selling until you've got a reasonable number up.
Cars were using petrolium long before Henry Ford. The first 4 stroke engine was patented in 1878. Most of the engineering work was done by Gottlieb Daimler, who had been working on petrolium engines for most of his life.
Those which are thought to be NASA spinoffs, but demonstrativly aren't, like Velcro, Teflon, and the space pen. These either predate the space program, and the space program happened to use them (Velcro was invented in 1956!), or they were developed at the same time, but independantly.
Those which are actually military spinoffs. The worldwide budget of military projects dwarfs the space projects. While much of this is low tech, there is still plenty which is spend on high tech stuff. For example, the first use of an integrated circuit was in the Minuteman missile.
I also wouldn't count anything that NASA has developed as part of it's aviation brief, or anything which happened to be developed by someone while they worked at a NASA facility but as a sideline.
Are you going to try and tell me that Democrats are trustworthy enough to be trusted with these things?
I'm certainly not. I don't trust anyone. That's why the the system must be designed in a way where it's very transparent, so the voter is confident that their vote will be recorded correctly and where fixing the the result is as hard as possible. As far as I can see, the best system for this is marks on bits of paper.
Interesting. I guess the aussies didn't know or ignored the rules for designing modern coins (I forgot to mention old coinages which had odd numbers of sides, usually 4 sides).
Perhaps they chose 12 sides because of the 6 states? I can't think of any other reason for doing it.
A Regular polygon is one where all sides are the same size, so a square is a regular 4 sided polyhedron, while a rectange is an irregular 4 sided polyhedron.So both the true heptagon and the 50p coint are regular.
Also from math world, the edges of a polygon a line segments, which are straight lines, so the 50p coin isn't a heptagon.
Actually it's not. A True heptagon would have 7 straight sides. The 50p coin has 7 slightly curved sides. This is so that the coin will roll properly if it's inserted into a coin slot.
Coins with sides always have an odd number of sides. This is also for coin slots, but this time so that the diameter is constant. With an odd number of sides you are measuring from one 'flat' side to one point. If you had an even number of sides then you could be measuring from point to point or from side to side, which would give different diameters.
Perhaps the problem is that 'all the nice features of new bills' aren't the right ones. If you tried this with a Canadian bill or an Australian one, it would be trivially obvious that you've not got a real bill - Canadian bills have a shiny hologram and Australian bills have a clear section, neither of which can a copier or inkjet print.
which would pretty much require every website that carries tv listings to go down
The vast majority of websites that carry tv listings actually use zap2it's system. If zap2it were to block scrapers, then it would make it very difficult to get tv listings.
The killer app for spreadsheets was initially VisiCalc. People would go into stores and say 'I want a visicalc' and buy an AppleII to run it on. Then Lotus brought out a better spreadsheet (Lotus 123) and killed the VisiCalc market. Then Microsoft brought out Excell and killed the Lotus market. Word processors weren't (until recently) quite so single versioned, but even so Electric Pencil, Wordstar and Word Perfect aren't so easy to find nowadays, and of course Microsoft Word isn't that old in the scheme of things.
Patents aren't meant to be monopolies on ideas, and if they're done right, then they encourage inovation. If the first company to produce a workable home video system had been able to get a patent on the whole concept of video home systems, then we might be stuck with only being allowed to use a clunky reel to reel system. Instead different companies introduced better and better systems until we got a very workable system which virtually everyone adopted.
Patents are meant to be for an implementation of an idea. Copyrights are meant to be for an expression of creativity. There is not protection for an idea on it's own.
For most PDF documents it's not that hard to change the text. The only ones where it's hard are where there are graphics for the text instead of using fonts.
And it's a complete waste of time, since almost all 'kidnappings' are actually custody disputes, and in those rare cases which aren't, the fingerprint is useless - the child is either released or dead before the alert is out.
But you got it through a process of not much more authentication than getting a credit card. As we know, there is a major problem of identify theft including getting credit cards in other people's names. I can't be assured that the process of getting a passport is prefectly flawless, and it's therefore impossible to get a passport in someone else's id.
It is because those countries have machine readable passports that contains as much information as the fingerprints.
The fingerprints from what I could figure out is to make it difficult to travel into the US using multiple passports.
But a machine readable passport doesn't make it any harder to travel using multiple passports. If I pick up your passport, and try to go through immigration with it, then the only thing which links me to the passport is how similar do I look to a possibly 10 year old photo in the passport. People can change a heck of a lot in 10 years, especially men who can grow or shave beards.
I wouldn't be so sure about analog TV being off in 10 years. 405 line TV was obsolete in 1964, when 625 line replaced it. Yet 405 transmissions weren't turned off until 1985.
If it takes 21 years to go from 405 to 625/PAL which has a clearly explainable advantage to the average consumer, and where sets were unreliable, then it's going to take a lot longer to eliminate analog.
Also the reason for wanting to do it has gone - they can't make money selling spectrum any more.
I don't belive that they did have colour immediatly, as I recall, it took several weeks for the computers of the time to composite the images and produce coloured images.
However, part of the reason for the delay in producing coloured images is the calibration step they're doing so that they can be more sure of the colours. The viking filters didn't allow the same amount of colour through each filter, so colour pictures are a 'best guess' of what each colour really is. By calibrating the filters, they can be a lot more sure of the real colours.
Scientific work is almost always in monochrome. If you have a colour CCD then you automatically have 1/3 the resolution, and you can only pickup those colours. Here they have the potential to use many different colour filters, including ones which include wavelengths our eyes aren't sensitive to.
As for space certified. I'm not aware of PCSAT having any CCDs on it. However, I'm also not sure that it was built using space certified components. It was meant as a student exercise, to give the students experience at building a satellite. If it lasted a week then failed, then that wouldn't be the end of the world. The mars landers have to last at least several months to get ANY results, and therefore have to be built to be more bulletproof.
This is one of the most interesting places on Mars, from a scientific point of view. The Gusev Crater has what appear to be dry river beds flowing into it. That means that it's quite likely to be a dry lake bed, and therefore is going to be one of the best candidates to have signs of life in it.
still thinks that unrestricted cryptography is a good thing even if it ends up in the hands of world's remaining bin Ladens and Saddams.
Ignoring the fact you've got the wrong Bruce...
You're assuming that restricting cryptography would stop them getting it. This seems to me to be an assumption without any evidence. The US didn't stop the rest of the world getting strong crypto when they tried to restrict it before, because the rest of the world also has the people who have the skills needed to devise or implement crypto. Why do you think that anything different would be true in the future?
The consumables were resupplied, the first manned mission (Skylab 2) only brought replacement medical supplies, as there was concerns over the onboard supplies spoiling in the high temperatures. The second manned mission (Skylab 3) brought 3 extras days of food, and various supplies to replace those found to have spoiled, eg the hygiene packs. However the last manned mission (Skylab 4) brough along "thousands of items needed for their lengthy manned period", including replacement coolant.
I think it's better to say Skylab wasn't resupplied, rather than it couldn't be.
Trash was definatly a problem, because there wasn't really a way to empty the trash containers. However, that doesn't mean that they couldn't have shifted to the Mir/ISS technique of using uncrewed cargo modules which are filled with trash before being released.
"Lest you forget, Skylab wasn't exactly a screaming success"
Skylab achieved everything it was designed to do: I call that a success.
Also, the only reason that it deorbited at the time it did, instead of lasting as long as Mir did was because of NASA not being able to get the shuttle launched on time. If they'd keep with BDB then they'd have had the capacity to reboost it's orbit instead of letting it reenter.
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There is a huge barrier in the cost of putting up sufficent cells to attract customers. This isn't cheap, and you can't start selling until you've got a reasonable number up.
Cars were using petrolium long before Henry Ford. The first 4 stroke engine was patented in 1878. Most of the engineering work was done by Gottlieb Daimler, who had been working on petrolium engines for most of his life.
And it wasn't invented by NASA. Neither was Velcro.
I also wouldn't count anything that NASA has developed as part of it's aviation brief, or anything which happened to be developed by someone while they worked at a NASA facility but as a sideline.
I'm certainly not. I don't trust anyone. That's why the the system must be designed in a way where it's very transparent, so the voter is confident that their vote will be recorded correctly and where fixing the the result is as hard as possible. As far as I can see, the best system for this is marks on bits of paper.
Isn't a wacko party really likely to run out of possible canadidates well before a mainstream one does?
Perhaps they chose 12 sides because of the 6 states? I can't think of any other reason for doing it.
Also from math world, the edges of a polygon a line segments, which are straight lines, so the 50p coin isn't a heptagon.
Coins with sides always have an odd number of sides. This is also for coin slots, but this time so that the diameter is constant. With an odd number of sides you are measuring from one 'flat' side to one point. If you had an even number of sides then you could be measuring from point to point or from side to side, which would give different diameters.
Perhaps the problem is that 'all the nice features of new bills' aren't the right ones. If you tried this with a Canadian bill or an Australian one, it would be trivially obvious that you've not got a real bill - Canadian bills have a shiny hologram and Australian bills have a clear section, neither of which can a copier or inkjet print.
The vast majority of websites that carry tv listings actually use zap2it's system. If zap2it were to block scrapers, then it would make it very difficult to get tv listings.
Patents aren't meant to be monopolies on ideas, and if they're done right, then they encourage inovation. If the first company to produce a workable home video system had been able to get a patent on the whole concept of video home systems, then we might be stuck with only being allowed to use a clunky reel to reel system. Instead different companies introduced better and better systems until we got a very workable system which virtually everyone adopted.
Patents are meant to be for an implementation of an idea. Copyrights are meant to be for an expression of creativity. There is not protection for an idea on it's own.
The only thing which prevented this being done years ago was hard drive sizes.
For most PDF documents it's not that hard to change the text. The only ones where it's hard are where there are graphics for the text instead of using fonts.
Bi Laden got his training from the US & the CIA. He didn't get any anthrax. That was an American terrorist.
And it's a complete waste of time, since almost all 'kidnappings' are actually custody disputes, and in those rare cases which aren't, the fingerprint is useless - the child is either released or dead before the alert is out.
But you got it through a process of not much more authentication than getting a credit card. As we know, there is a major problem of identify theft including getting credit cards in other people's names. I can't be assured that the process of getting a passport is prefectly flawless, and it's therefore impossible to get a passport in someone else's id.
The fingerprints from what I could figure out is to make it difficult to travel into the US using multiple passports.
But a machine readable passport doesn't make it any harder to travel using multiple passports. If I pick up your passport, and try to go through immigration with it, then the only thing which links me to the passport is how similar do I look to a possibly 10 year old photo in the passport. People can change a heck of a lot in 10 years, especially men who can grow or shave beards.
If it takes 21 years to go from 405 to 625/PAL which has a clearly explainable advantage to the average consumer, and where sets were unreliable, then it's going to take a lot longer to eliminate analog.
Also the reason for wanting to do it has gone - they can't make money selling spectrum any more.
However, part of the reason for the delay in producing coloured images is the calibration step they're doing so that they can be more sure of the colours. The viking filters didn't allow the same amount of colour through each filter, so colour pictures are a 'best guess' of what each colour really is. By calibrating the filters, they can be a lot more sure of the real colours.
As for space certified. I'm not aware of PCSAT having any CCDs on it. However, I'm also not sure that it was built using space certified components. It was meant as a student exercise, to give the students experience at building a satellite. If it lasted a week then failed, then that wouldn't be the end of the world. The mars landers have to last at least several months to get ANY results, and therefore have to be built to be more bulletproof.
This is one of the most interesting places on Mars, from a scientific point of view. The Gusev Crater has what appear to be dry river beds flowing into it. That means that it's quite likely to be a dry lake bed, and therefore is going to be one of the best candidates to have signs of life in it.
Ignoring the fact you've got the wrong Bruce...
You're assuming that restricting cryptography would stop them getting it. This seems to me to be an assumption without any evidence. The US didn't stop the rest of the world getting strong crypto when they tried to restrict it before, because the rest of the world also has the people who have the skills needed to devise or implement crypto. Why do you think that anything different would be true in the future?
I think it's better to say Skylab wasn't resupplied, rather than it couldn't be.
Trash was definatly a problem, because there wasn't really a way to empty the trash containers. However, that doesn't mean that they couldn't have shifted to the Mir/ISS technique of using uncrewed cargo modules which are filled with trash before being released.
Skylab achieved everything it was designed to do: I call that a success.
Also, the only reason that it deorbited at the time it did, instead of lasting as long as Mir did was because of NASA not being able to get the shuttle launched on time. If they'd keep with BDB then they'd have had the capacity to reboost it's orbit instead of letting it reenter.