So, what you are saying is that you'd rather be dinner than carry a gun for fear of accidentally shooting someone because you don't know how to carry a firearm?
No that's entirely unlike what I'm saying.
However as a Christian I'm not going to carry a firearm as using it would mean killing which is against my beliefs. I'm not willing to go to hell to save 50 bucks out of my wallet.
and creating periods in a child's life where they are vulnerable to diseases that deafen, deform or kill them.
This is pure fear mongering nonsense. The MMR vaccine is for diseases that doesn't do any of the above. Measels cause no real effects unless your child is immunocompromized, and has been eliminated in North America since 2002. Mumps causes no long term issues and rubella (german measles) also causes no issues. This is of course for children - there are more side effects if an adult gets these.
This is more about the multi-billion dollar business of dealing prescription drugs than about prevention of any serious illness. And if you do choose to vaccinate, why not just give them one at a time instead of in a drug cocktail? It's not because your child will suddenly die if they dont get immediately immunized as you suggest.
Actually, they've found a very high rate of autism coming from the children in silicon valley
Autism rates are up all over North America. Lots of research points to the ridiculous amount of cocktail vaccines that are now given to children. The drugs are approved in isolation but handed out mixed together and no one knows what happens when you combine them.
Vaccines are fine, and there's nothing wrong in telling your doctor you'd rather have then in single doses, spread out over time. This allows the body to absorb and adapt to them without having to deal with the vaccine soup all at once.
A satellite is the ultimate inaccessible device running SW. Any task that goes wrong has the chance of bricking a device that cost many many millions, so they *must* practice and check all commands sent to it when things go wrong
Yes they practice everything on a mockup, but there is no chance that you can 'brick' Hubble. Proper spacecraft design means you have a completely separate system able to intercept telemetry and reprogram the main computer if an undiscovered bug happens to lock it up.
Do they have several mock ups?
Yes, both for software and a full mechanical mockup.
A complete computer model of the whole thing, emulated right down to hardware and software?
Partially, yes. But you can never em ulate the real thing perfectly which is why they usually rely on physical mockups.
How are reboot/reprogram sequences like this handled/practiced/tested?
No simple answer to that. But check out NASAs system and software design guidelines, or better yet take a spacecraft design course at your local college or university if they offer one.
Even at design stage I imagine failure modes are extensively analyzed and multiple redundancy built in.
Yes - very extensively. Anything that goes into space is analyzed for years. You have no idea how expensive and time consuming this can be until you actually work on one of these projects.
Anybody know how space tech is handled?
Yes - expensively and with great rigor. There are no shortcuts.
I would have thought that the main problem with a liquid mirror on the moon is vibration causing ripples on the surface. The constant meteroid impact on the surface causes vibrations that would travel up the structure and distort the liquid surface. That and the vibration from the spinning mechanism itself.
Or the thermal gradient changes as parts of the structure are in and out of the sunlight - this was a design consideration for Hubble and it is much smaller than what is being considered here.
Gravity is a concern, but I dont think it is by any means the dominant design driver.
Since the "dark" side of the moon is protected from the radio emissions from Earth, I think it's inevitable that the dark side will one day be "the" spot for big radio telescope arrays. Why not put our biggest optical telescope there as well?
Because for close to half the time the far side of the moon is completely blinded because it is looking towards the sun.
If the specific implementation is not novel or new, then its not valid. I highly doubt that Tivo invented a completely new non obvious method of recording MPEG video streams.
Much of this DVR technology is "obvious" now but when TIVO first began building these boxes there was no one out there doing it.
It was called a VCR - it's been around for years
like if you are running FFWD and hit play it will rewind just a bit to take care of overshoot. Not an obvious feature but a VERY nice one and I'm pretty sure patented.
Again, VCRs did this for years. The intent was to rewind past the point where you hit the button, and the tape that kept going due to the spinning reel inertia.
NOTHING in that patent is new or novel. Changing from analog tape to digial media is an obvious enhancement to the VCR and should never have been granted as a patent.
I agree - and the big ones tend to explode. We've had several large ones (8 gig and up) spontaneously fail here, which we've never seen with the smaller ones.
f psychics are so real, how come none have come forward to debunk James Randi (the way that he has debunked dozens of them)? It would seem a fairly simple task. He has even agreed to meet psychics on "neutral ground," but still no takers.
You're confusing psychics with paranormal activity. Randi's million dollar challenge is to demonstrate evidence of paranormal, supernatural or occult power. Reading minds is a mentalist activity not paranormal.
If you get a chance, go see the Amazing Kreskin. He truly is amazing with his ability to read thoughts and to plant ideas in peoples minds.
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So, what you are saying is that you'd rather be dinner than carry a gun for fear of accidentally shooting someone because you don't know how to carry a firearm?
No that's entirely unlike what I'm saying.
However as a Christian I'm not going to carry a firearm as using it would mean killing which is against my beliefs. I'm not willing to go to hell to save 50 bucks out of my wallet.
Sorry but this is just getting totally silly - there's no way that a sheep can drive a car.
Except you have a higher chance of blowing off your own hoof or hitting another sheep than you do hitting a wolf.
and creating periods in a child's life where they are vulnerable to diseases that deafen, deform or kill them.
This is pure fear mongering nonsense. The MMR vaccine is for diseases that doesn't do any of the above. Measels cause no real effects unless your child is immunocompromized, and has been eliminated in North America since 2002. Mumps causes no long term issues and rubella (german measles) also causes no issues. This is of course for children - there are more side effects if an adult gets these.
This is more about the multi-billion dollar business of dealing prescription drugs than about prevention of any serious illness. And if you do choose to vaccinate, why not just give them one at a time instead of in a drug cocktail? It's not because your child will suddenly die if they dont get immediately immunized as you suggest.
How about this: http://fightingautism.org/idea/autism.php
I'm sorry, I think you meant to post this mind-numbing drivel in the Scientific Hoaxes story, not this one.
And somehow mercury when used as a vaccine preservative and directly injected into the human body is safe?
Actually, they've found a very high rate of autism coming from the children in silicon valley
Autism rates are up all over North America. Lots of research points to the ridiculous amount of cocktail vaccines that are now given to children. The drugs are approved in isolation but handed out mixed together and no one knows what happens when you combine them.
Vaccines are fine, and there's nothing wrong in telling your doctor you'd rather have then in single doses, spread out over time. This allows the body to absorb and adapt to them without having to deal with the vaccine soup all at once.
Tried that - it was called the 'Dark Ages' and scientists were burned at the stake.
A satellite is the ultimate inaccessible device running SW. Any task that goes wrong has the chance of bricking a device that cost many many millions, so they *must* practice and check all commands sent to it when things go wrong
Yes they practice everything on a mockup, but there is no chance that you can 'brick' Hubble. Proper spacecraft design means you have a completely separate system able to intercept telemetry and reprogram the main computer if an undiscovered bug happens to lock it up.
Do they have several mock ups?
Yes, both for software and a full mechanical mockup.
A complete computer model of the whole thing, emulated right down to hardware and software?
Partially, yes. But you can never em ulate the real thing perfectly which is why they usually rely on physical mockups.
How are reboot/reprogram sequences like this handled/practiced/tested?
No simple answer to that. But check out NASAs system and software design guidelines, or better yet take a spacecraft design course at your local college or university if they offer one.
Even at design stage I imagine failure modes are extensively analyzed and multiple redundancy built in.
Yes - very extensively. Anything that goes into space is analyzed for years. You have no idea how expensive and time consuming this can be until you actually work on one of these projects.
Anybody know how space tech is handled?
Yes - expensively and with great rigor. There are no shortcuts.
I would have thought that the main problem with a liquid mirror on the moon is vibration causing ripples on the surface. The constant meteroid impact on the surface causes vibrations that would travel up the structure and distort the liquid surface. That and the vibration from the spinning mechanism itself.
Or the thermal gradient changes as parts of the structure are in and out of the sunlight - this was a design consideration for Hubble and it is much smaller than what is being considered here.
Gravity is a concern, but I dont think it is by any means the dominant design driver.
Since the "dark" side of the moon is protected from the radio emissions from Earth, I think it's inevitable that the dark side will one day be "the" spot for big radio telescope arrays. Why not put our biggest optical telescope there as well?
Because for close to half the time the far side of the moon is completely blinded because it is looking towards the sun.
Exactly..
I read the patent - it's groundless, non novel and not unique.
This coming from someone with little to no ideas that need protection from others.
Actually I'm an engineer with my name to several patents, so your supposition as to my intent is completely false.
If the specific implementation is not novel or new, then its not valid. I highly doubt that Tivo invented a completely new non obvious method of recording MPEG video streams.
Much of this DVR technology is "obvious" now but when TIVO first began building these boxes there was no one out there doing it.
It was called a VCR - it's been around for years
like if you are running FFWD and hit play it will rewind just a bit to take care of overshoot. Not an obvious feature but a VERY nice one and I'm pretty sure patented.
Again, VCRs did this for years. The intent was to rewind past the point where you hit the button, and the tape that kept going due to the spinning reel inertia.
NOTHING in that patent is new or novel. Changing from analog tape to digial media is an obvious enhancement to the VCR and should never have been granted as a patent.
No, it's not ok. It's a patent designed to limit market competition and creativity. Besides that its completely obvious. It should be thrown out.
No, you townie.
I agree - and the big ones tend to explode. We've had several large ones (8 gig and up) spontaneously fail here, which we've never seen with the smaller ones.
Ok coward.. (not that you'll likely read this, but lets educate everyone else):
Forbidden Kingdom - Best Buy BluRay $31, DVD $31
Iron Man - Blockbuster. BluRay $20, DVD $20
So I've doubled your useless random sampling with two useless random samplings of my own, so my post was right..
If you think that DRM has any negative effect on the economy you should really take a look at the bigger picture.
It could have to do with new DVD's being $10-$15, where new Blu-Ray discs are $23.99(amazon)-$39.99 (Bestbuy)
Last time I was in Future Shop / Best Buy, the DVD and BluRay discs were either the same price or within $2-3 of each other. Price is not a barrier.
Personally I love Blu-ray and won't buy another DVD again.
I have a tested IQ of 158 and I could give a rats ass about DRM. Doesn't affect me in the slightest.
It's easy to manage that project ... Trillion yen? Meet toilet! (flush!!)
Colossal waste of money on something that doesn't have a chance in hell of working.
f psychics are so real, how come none have come forward to debunk James Randi (the way that he has debunked dozens of them)? It would seem a fairly simple task. He has even agreed to meet psychics on "neutral ground," but still no takers.
You're confusing psychics with paranormal activity. Randi's million dollar challenge is to demonstrate evidence of paranormal, supernatural or occult power. Reading minds is a mentalist activity not paranormal.
If you get a chance, go see the Amazing Kreskin. He truly is amazing with his ability to read thoughts and to plant ideas in peoples minds.