The video format has nothing to do with amateur slow-scan television. It was a custom format designed to work within the bandwidth and SNR restrictions of the RF link from the Moon to the Earth.
The format isn't a big mystery, it's IRIG 106 if anyone cares. The problem is that as part of the continuing budget crunch at NASA, made worse by the need to scrounge money from the existing budget for new tasks like a Shuttle replacement and going to Mars, many activities and facilities are being cut or eliminated. The lab that can handle these old tapes, the Data Evaluation Lab at Goddard, has lost its funding. That means that it will be closed at the end of this fiscal year. The equipment goes into storage or is surplused. The people have to find other jobs or be laid off or retire.
Building a recorder from scratch would be insanely expensive. These recorders cost anywhere from $50-100K when they were new and being manufactured in quantity.
It's easy to say that "they" should keep and maintain the hardware, catalog and store the tapes in climate controlled warehouses, and do all the other things needed to preserve the data for future generations. That doesn't pay the bills. Just storing a tape can cost a dollar or more a year. That doesn't sound too bad until you realize that a single spacecraft can easily generate tens of thousands of tapes. Another problem is that at $100-200 for a new reel of tape, there has always been a large incentive to recycle and reuse tapes for current missions.
The video cameras on the Moon were not connected to local video-tape recorders. The video signal went from the camera to the transmitter for relay to the Earth. Any recordings would have been made at the tracking station on the Earth.
This sort of thing is common when you need permission and an escort to safely travel through an area. If the guide has an ounce of sense, he's going to make sure that you see every grieving widow and damaged building, while simultaneously avoiding the katyusha launcher parked behind the mosque.
Let's say that you are on the surface of a planet that is constructed from two hemispheres of equal size. The northern hemisphere is composed of aluminum and the southern hemisphere is composed of iron. You take gravity measurements at the north and south poles. What are your results?
And while a competent programmer should be able to manage memory, when we have all these tight deadlines and all these cheap cycles, why take the time or pay the extra money?
After browsing through a number of blogs, the two photos mentioned are just the tip of the iceberg. Reuters has distributed many other photographs from Adnan Hajj that are fake or questionable. With his talents, maybe Hajj can get a job with the Weekly World News.
Do the manufacturers need the retailers? I've gotten used to the idea that many products are not available in retail stores. They get shipped directly from the manufacturer or some big warehouse and distribution center.
I'm thinking about what we do with all that material when the bridge has outlived its usefulness. Concrete and steel are easy to recycle. What do you do with thousands of tons of plastic?
Have they thought about the long term environmental impact of these bridges? Concrete and steel can be recycled.
I was watching a television show on airplane junkyards, and they mentioned that they can't do much with the plastic and carbon-fiber composite parts that are common in newer airplanes.
The fact that it isn't a criminal case isn't going to save you. When the Clams (Church of $cientology) have gone after their critics for alleged copyright infringement, they have obtained court orders to search and seize their critics' computers for infringing material.
Sometimes it's funny, but I get really irritated when they don't even make a token attempt at being scientific about their experiments. Science can be fun and educational.
With an expanding bullet, much of its energy is used to create that large wound channel, as opposed to having it exit the target with most of its energy intact.
Armor-piercing bullets tend to create less damaging wounds than soft bullets that are designed to expand upon impact and dump all of their energy quickly.
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The video format has nothing to do with amateur slow-scan television. It was a custom format designed to work within the bandwidth and SNR restrictions of the RF link from the Moon to the Earth.
Building a recorder from scratch would be insanely expensive. These recorders cost anywhere from $50-100K when they were new and being manufactured in quantity.
It's easy to say that "they" should keep and maintain the hardware, catalog and store the tapes in climate controlled warehouses, and do all the other things needed to preserve the data for future generations. That doesn't pay the bills. Just storing a tape can cost a dollar or more a year. That doesn't sound too bad until you realize that a single spacecraft can easily generate tens of thousands of tapes. Another problem is that at $100-200 for a new reel of tape, there has always been a large incentive to recycle and reuse tapes for current missions.
The video cameras on the Moon were not connected to local video-tape recorders. The video signal went from the camera to the transmitter for relay to the Earth. Any recordings would have been made at the tracking station on the Earth.
This sort of thing is common when you need permission and an escort to safely travel through an area. If the guide has an ounce of sense, he's going to make sure that you see every grieving widow and damaged building, while simultaneously avoiding the katyusha launcher parked behind the mosque.
Let's say that you are on the surface of a planet that is constructed from two hemispheres of equal size. The northern hemisphere is composed of aluminum and the southern hemisphere is composed of iron. You take gravity measurements at the north and south poles. What are your results?
Determinism.
I'm sure he was just trying to remove some dust specks from the image.
After browsing through a number of blogs, the two photos mentioned are just the tip of the iceberg. Reuters has distributed many other photographs from Adnan Hajj that are fake or questionable. With his talents, maybe Hajj can get a job with the Weekly World News.
Do the manufacturers need the retailers? I've gotten used to the idea that many products are not available in retail stores. They get shipped directly from the manufacturer or some big warehouse and distribution center.
The "amount" or magnitude of gravity can change at the point where the measurement is taken. The Earth is not a static sphere of uniform density.
English Abuse Flying Squad
That has to be one of the most ignorant things that I've ever read on slashdot.
Sounds like the Sargasso Sea.
I could see that extracting rebar from concrete might be more trouble than it's worth, but what about all the structural steel?
I'm thinking about what we do with all that material when the bridge has outlived its usefulness. Concrete and steel are easy to recycle. What do you do with thousands of tons of plastic?
I was watching a television show on airplane junkyards, and they mentioned that they can't do much with the plastic and carbon-fiber composite parts that are common in newer airplanes.
Chocolate is supposed to be a good polishing agent. I'm not sure what the abrasive agent is. I've used toothpaste with some success.
See http://www.skeptictank.org/gs/sci691.htm for an article on the subject.
Sometimes it's funny, but I get really irritated when they don't even make a token attempt at being scientific about their experiments. Science can be fun and educational.
Yes, they can. See http://www.ssa.gov/history/ssn/geocard.html.
With an expanding bullet, much of its energy is used to create that large wound channel, as opposed to having it exit the target with most of its energy intact.
Math geeks seemed to often end up as artillery officers. The modern slide rule was invented by a French artillery officer.
The two fields, actuarial science and accountancy, have little in common.
At least you'll still have a kneecap, rather than an orthopedic surgeon's nightmare.
Armor-piercing bullets tend to create less damaging wounds than soft bullets that are designed to expand upon impact and dump all of their energy quickly.