Bill F*?$*^& Gates isn't a great programmer. He's an evil business genius who knows how to take other peoples work, re-package it, and sell it to the unsuspecting masses.
I don't know whether to hate him or respect him for it...
What license does the original open source code fall under. If, for example, the base code was GPL, then your code may already be GPL by definition...
This is how I understand it. There are some issues concerning which libraries you have to use, etc. to maintain fundamental ownership of your code (beyond perhaps a copyright acknowledgement), etc.
I too, need to go re-read the liscense docs (GPL, GNU, BSD, etc.)
I keep seeing people refer to this stuff in comparison to a nerf ball. This is way off!!!
The tank is coated in a hard foam similar to the polyurethane foam used in insulation.
Do a little experiment yourself here (warning: not for little children : ) Go to the hardware store and find a can of "Great Stuff" foam insulation spray. It's used to fill the holes in walls around pipes.
Now, lay out a plastic trash bag, and empty the entire can onto the bag -- (warning: the stuff expands as it hardens; so, start in the middle of the bag).
Once it hardens, take a look at the result. This is similar stuff, not quite as nice as what they use on the shuttle of course... Also, keep in mind that an entire can of "Good Stuff" is only 12oz. (3/4 lb). You'd need over two cans of the stuff to make a piece the size they're talking about.
The insulation is acting as... insulation. Behind it is a tank full of liquid Hydrogen at below -406 degrees Farenheit. It's so cold that, without the foam, not only does the water freeze; but, the air (Nitrogen and Oxygen) will turn to liquid. That's why the insulation is there in the first place.
Yes, there is heating on the outer surface; but, one of the reasons the foam came off in the first place is that it probably cryo-pumped air into the void behind it (since it obviously wasn't adhering properly).
If there's even the tiniest of holes all the way through the foam, air will condense out in a void (if there is one). This will have the effect of pulling in more air, which will condense out... This will continue until the void is filled with liquid air and ice. During launch, the temperatures rise on the foam until liquid air begins to boil. This will have the effect of explosively blowing the foam chunk off of the tank.
An important point here is that this occurs when the temperature reaches the boiling point of the Nitrogen and Oxygen, which is still -293 Farenheit. If any water ice is present, it would still be quite solid...
Kind sir, the shuttle was probably doing 500 mph within the first 15 seconds after liftoff. Since the foam impact occured some 80-90 seconds after liftoff, it should be easy to infer that the shuttle's speed was in the 1000's of mph.
The exact values can be found in public record if you choose to look
They've done careful analysis of the video footage from the shuttle. The speed of the shuttle itself, at that or any point, is very well known. The speed of the foam relative to the shuttle can easily be determined by measuring frame-to-frame motion in the video given some point of reference, like, the shuttle wing.
Many, many scientists lose touch with reality. What I've experienced and seen is that, by the time someone has recieved their PhD, their brains are quite burned out...
And common sense is one of the first things to go. You know that old saying: "If my head weren't attached to my body..."
I hope that this was either a remedial class; or, you didn't pay for it...
They're feeding you psuedo science kid, learn to recognize it or you'll be working at McD's for the rest of your life.
You forgot that the motion of the magma below the crust causes it to rise and fall in small increments over time...
One would like to believe they take such things into account... One would like to believe common sense is applied to everything as well, but... I know too many scientists.
Your time-scales are all wrong. Nothing geologically significant (except earthquakes, volcanoes, and meteor strikes, and even then...) happens in a century time scale. You'd need to think in 10's of thousands of years at a minimum.
by adding a number of ground based GPS transmitter stations at known (well-surveyed) points, then doing statistical averaging and analysis of the signals over some time, GPS can be accurate to millimeters.
This is how they get the precise values when doing this kind of surveying.
Flash has run into a physical roadblock wrt chip fabrication capabilities. Although it gets cheaper to make with time, it's not likely to get much smaller (I know we've all heard this before; but, sometimes physics takes precedance; and, in this case, it's winning)
They required a lab full of optics and lasers to work. Since that won't fit (yet) into a beige box, you're not likely to see them.
Give it a few years (yeah, yeah, I know you've already been waiting) You're more likely to see these as the transition to optical computing takes place in , well, a couple of decades.
They're probably targeting cheap cameras.
My pencam is an example -- it's really cheap ($30) and takes crappy pictures (300kpixel cmos) and only holds some 26 images in memory (before I'm forced to download); but, it's good enough to use for quick photos to through up on a web-site.
one of the reasons they've moved to the smaller platters is to improve performance. They belong to the days when IDE or SCSI transfer rates were on the order of 10MB/s
It's surface mount, i.e. fixed, i.e. non-removable (unless mounted in a compact flash sized shell). It's got a minimalistic shell to reduce price --that's the point; it can be installed in cheap cameras.
Vastly reduced part count, fixed installation (non-removable) surface mount, usb, uses shared memory instead of built-in cache, only $65 now with target price of $50 in quantity 10k
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Bill F*?$*^& Gates isn't a great programmer. He's an evil business genius who knows how to take other peoples work, re-package it, and sell it to the unsuspecting masses.
I don't know whether to hate him or respect him for it...
AAAHhhhh the pain!!! Must Hate! Must!
hmmm, I wonder why your not there anymore???
Oh yeah, they fired you.
This is how I understand it. There are some issues concerning which libraries you have to use, etc. to maintain fundamental ownership of your code (beyond perhaps a copyright acknowledgement), etc.
I too, need to go re-read the liscense docs (GPL, GNU, BSD, etc.)
And it will no doubt be protected, if true. They will see to it.
Well, my point was that a nerf ball is relatively innocent (probably not lethal) at 500mph. Two pounds of hard foam is a completely different story...
The tank is coated in a hard foam similar to the polyurethane foam used in insulation.
Do a little experiment yourself here (warning: not for little children : ) Go to the hardware store and find a can of "Great Stuff" foam insulation spray. It's used to fill the holes in walls around pipes.
Now, lay out a plastic trash bag, and empty the entire can onto the bag -- (warning: the stuff expands as it hardens; so, start in the middle of the bag).
Once it hardens, take a look at the result. This is similar stuff, not quite as nice as what they use on the shuttle of course... Also, keep in mind that an entire can of "Good Stuff" is only 12oz. (3/4 lb). You'd need over two cans of the stuff to make a piece the size they're talking about.
Think about that hitting you doing 500 mph...
Yes, there is heating on the outer surface; but, one of the reasons the foam came off in the first place is that it probably cryo-pumped air into the void behind it (since it obviously wasn't adhering properly).
If there's even the tiniest of holes all the way through the foam, air will condense out in a void (if there is one). This will have the effect of pulling in more air, which will condense out... This will continue until the void is filled with liquid air and ice. During launch, the temperatures rise on the foam until liquid air begins to boil. This will have the effect of explosively blowing the foam chunk off of the tank.
An important point here is that this occurs when the temperature reaches the boiling point of the Nitrogen and Oxygen, which is still -293 Farenheit. If any water ice is present, it would still be quite solid...
The exact values can be found in public record if you choose to look
The foam was moving 500 mph relative to the wing
They've done careful analysis of the video footage from the shuttle. The speed of the shuttle itself, at that or any point, is very well known. The speed of the foam relative to the shuttle can easily be determined by measuring frame-to-frame motion in the video given some point of reference, like, the shuttle wing.
And common sense is one of the first things to go. You know that old saying: "If my head weren't attached to my body..."
hmmmm. But what if I want to believe that I'm standing still and the universe is moving around ME, at it's center?
I hope that this was either a remedial class; or, you didn't pay for it... They're feeding you psuedo science kid, learn to recognize it or you'll be working at McD's for the rest of your life.
One would like to believe they take such things into account... One would like to believe common sense is applied to everything as well, but... I know too many scientists.
Some people are slow, and have to be reminded often...
Your time-scales are all wrong. Nothing geologically significant (except earthquakes, volcanoes, and meteor strikes, and even then...) happens in a century time scale. You'd need to think in 10's of thousands of years at a minimum.
by adding a number of ground based GPS transmitter stations at known (well-surveyed) points, then doing statistical averaging and analysis of the signals over some time, GPS can be accurate to millimeters. This is how they get the precise values when doing this kind of surveying.
How does a paper pattern fall under this law?
"They didn't pay for it; so, it must be a pirated copy..." ---can you see the logic???
of course, that makes me a pirate. Aaaarrg
Now if only someone would write a book telling me how to get my Lexmark winprinter to work under linux...
Flash has run into a physical roadblock wrt chip fabrication capabilities. Although it gets cheaper to make with time, it's not likely to get much smaller (I know we've all heard this before; but, sometimes physics takes precedance; and, in this case, it's winning)
Give it a few years (yeah, yeah, I know you've already been waiting) You're more likely to see these as the transition to optical computing takes place in , well, a couple of decades.
They're probably targeting cheap cameras. My pencam is an example -- it's really cheap ($30) and takes crappy pictures (300kpixel cmos) and only holds some 26 images in memory (before I'm forced to download); but, it's good enough to use for quick photos to through up on a web-site.
one of the reasons they've moved to the smaller platters is to improve performance. They belong to the days when IDE or SCSI transfer rates were on the order of 10MB/s
It's surface mount, i.e. fixed, i.e. non-removable (unless mounted in a compact flash sized shell). It's got a minimalistic shell to reduce price --that's the point; it can be installed in cheap cameras.
Vastly reduced part count, fixed installation (non-removable) surface mount, usb, uses shared memory instead of built-in cache, only $65 now with target price of $50 in quantity 10k