There are no Booster tank engines.
The devices you are talking about are two strap on solid rocket boosters. There are entirely self contained, with thier own internal solid fuel. They one single use rockets, not enitrely unlike a giant bottle rocket.
The Big external tank provides fuel to the shuttles main engines (The four nozzles at the tail of the shuttle) which provide over half of the thrust needed to get into orbit.
They had a hard epoxy paint coating on top of the foam for the first launches. But the extra wheight involved seriously impacted the shuttles already limited payload capacity, so it was scraped.
The problem with the shuttle, and any reuseable air gliding vechicle is that you are always hauling this giant wing up into space, one that's producing a ton of drag due to air friction, and extra really heavy up with you into orbit. The only time it's of any use is during rentry. This is really dumb design. You want to make anything that's only used during rentry as light as possible, and fuel consumption is not a factor on the way down, you got gravity doing all the work.
This is why a rocket/capsul style design is always more fuel efficent than the shuttle type concept. You could always biuld a capsul with a replacable reheat shield, and slap a new one and new parashutes on for every launch. At least you could reuse the crew and cargo cabin that way. The boosters could parashute back down too.
Seriously traditional Saturn V style rockets had a lot more bang for the buck, and lift for the same gallon of fuel. The shuttle is just bad engineering from the get go, but since a lot of the people who approved the spending were old air force guys we got stuck with something with a wing.
Until we get a order of magnitude more thrust out of a pound of fuel (nuclear power) the shuttle concept just doesn't work.
That big tank is the fuel storage for that cluster of engines at the bottom of the shuttle itself.
So what your proposing is that we take a mamoth tank of hydrogen and oxygen, one of the most explosive mixtures there is, and put in the direct path of four giant blow torces in the form of the shuttles main engines.
Yes, you can get cooling from compressing and then expanding a gas, but you don't get the ability to move nearly as much heat as when you use a material with a high termal co-efficent, and one that goes from a gasious state to a liquid state during the refrigiation loop.
V'ger was the probe in the first movie, the huge cloud like with the old Voyager probe in the center.
The seen your talking about happened in the forth movie, Star Trek IV: The Voyage Home (save the whales.)
Does it use collapsing spring key click technology the like original IBM Model M?
If not I'll keep my trusty old current keyboard. I like the tactile feedback and the knowledge that in case of terrorist attack I can beat them to death with it.
Then again, I may be getting old; I have an ASR-33 teletype in my basement.
The key word here is "link", he didn't rip the songs, convert them to mp3, or host them. What he didn't isn't, or at leat shouldn't be, illegal. It's the people hosting the riping and hosting that broke the law.
This is like saying to someone, "Hay I hear they are selling pot down on First and Lake St." and getting arrested for it. Taking about someone else doing a crime, isn't a crime.
Really, you'd do that? You'd spend thousands of dollars in time and equipment to save less than a hundred a year in power costs and piss off your customers in the process?
Pizza Boxes are made of cardboard which is not known for it's conductive property's. Also computer motherboards run on 3.3v to 5v which is not enough to even at 20 amps of current to throw a notable spark anywhere.
The are some basic mis-understandings of what the rovers were designed to do, and why they are lasting this long.
Pathfinder (1997): Designed more as a engineering test bed mission, than a primarily scientific one. Successfully demonstraited the air bag landing technique and sent back some amazing images. Rover Sojourner could only move with direct sunlight shining on it's solar panels. Did not have rechargable battery packs. Once the power was all used up, the mission was over.
Spirit/Opertunity: Two rover's sent for redunantcy, and to provide coverage for two different land sites. Rovers have rechargable batteries, and radio isotope heaters to keep the electronics from freezing during the cold mars nights/winter. These heaters also mean the rover doesn't have to use battery power to provide this heat, so it greatly reduces battery load, and extends the mission. The heaters use plutonium-238 with a half life of 27.1 years. http://www.lanl.gov/orgs/pa/newsbulletin/2004/02/0 9/text02.shtml
The mars envirornment is dumping a lot less dust onto the solar cells than was esitmated. This means more power for the rovers, and a longer mission life.
A lot of the other parts are standard things. A bearing is a bearing. It would have cost a lot of money to design a bearing that would wear out after two miles of use. P-238 is the isotope of choice for RHU's. A digital camera generally works forever, until you spill pepsi on it. Same with the rover, you take care of it, it'll last.
Think of it as an airplane. I wouldn't get in an airplane that didn't have a sound engine, solidly mounted wings, tires with good tread left one them, ect. Such an plane is safe enough for a flight accross the country, or a hundred. Without it, it's not safe for one trip.
The real test will be to see if these babbies can make it through the mars winter and come back up and run in the spring.
Well isn't that the pot calling the kettle black?
The point the original poster was making is that setting up a FPGA is a lot more like coding, than it it ship designing. The skill set, methods and tools are nearly the same.
In fact I wouldn't be entirely surprised to find that the joystick/C64 is heavily based on a number of the opensource C64 emulators that are around.
Not that I think this subtracts from the coolness factor of what she came up with, but it's not like she layed out a 6502 gate by gate by hand.
Slashdot Mirror
There are no Booster tank engines. The devices you are talking about are two strap on solid rocket boosters. There are entirely self contained, with thier own internal solid fuel. They one single use rockets, not enitrely unlike a giant bottle rocket. The Big external tank provides fuel to the shuttles main engines (The four nozzles at the tail of the shuttle) which provide over half of the thrust needed to get into orbit.
They used to do something sort of like that.
They had a hard epoxy paint coating on top of the foam for the first launches. But the extra wheight involved seriously impacted the shuttles already limited payload capacity, so it was scraped.
The problem with the shuttle, and any reuseable air gliding vechicle is that you are always hauling this giant wing up into space, one that's producing a ton of drag due to air friction, and extra really heavy up with you into orbit. The only time it's of any use is during rentry. This is really dumb design. You want to make anything that's only used during rentry as light as possible, and fuel consumption is not a factor on the way down, you got gravity doing all the work.
This is why a rocket/capsul style design is always more fuel efficent than the shuttle type concept. You could always biuld a capsul with a replacable reheat shield, and slap a new one and new parashutes on for every launch. At least you could reuse the crew and cargo cabin that way. The boosters could parashute back down too.
Seriously traditional Saturn V style rockets had a lot more bang for the buck, and lift for the same gallon of fuel. The shuttle is just bad engineering from the get go, but since a lot of the people who approved the spending were old air force guys we got stuck with something with a wing.
Until we get a order of magnitude more thrust out of a pound of fuel (nuclear power) the shuttle concept just doesn't work.
That big tank is the fuel storage for that cluster of engines at the bottom of the shuttle itself.
So what your proposing is that we take a mamoth tank of hydrogen and oxygen, one of the most explosive mixtures there is, and put in the direct path of four giant blow torces in the form of the shuttles main engines.
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NO.. bad engineer... NO!
Lame recently registered site that goes directly to a add hosting service.
Yes, you can get cooling from compressing and then expanding a gas, but you don't get the ability to move nearly as much heat as when you use a material with a high termal co-efficent, and one that goes from a gasious state to a liquid state during the refrigiation loop.
V'ger was the probe in the first movie, the huge cloud like with the old Voyager probe in the center. The seen your talking about happened in the forth movie, Star Trek IV: The Voyage Home (save the whales.)
That's great and all, but the point of the posters question was what's the mainframe world like.
Does it use collapsing spring key click technology the like original IBM Model M? If not I'll keep my trusty old current keyboard. I like the tactile feedback and the knowledge that in case of terrorist attack I can beat them to death with it. Then again, I may be getting old; I have an ASR-33 teletype in my basement.
I have no plans to ever give up my 21" CRT. It still blows LCD out of the water.
Sup Elk River, or Zimmerman buddy? Are there stairs in your house?
The key word here is "link", he didn't rip the songs, convert them to mp3, or host them. What he didn't isn't, or at leat shouldn't be, illegal. It's the people hosting the riping and hosting that broke the law. This is like saying to someone, "Hay I hear they are selling pot down on First and Lake St." and getting arrested for it. Taking about someone else doing a crime, isn't a crime.
Nobody I'm sure, not since Tommy Tutone used it in his song "8675309/Jenny" back in the 80's.
How can you turn over "even more" of something that's already open sourced?
There is nothing less cool than Modern Dance.
You want to be cool? Blow stuff up. All kids like blowing stuff up.
How about Anthony Hopkins. : Granted, he's a great actor, but that would be pretty boned up right there.
Really, you'd do that? You'd spend thousands of dollars in time and equipment to save less than a hundred a year in power costs and piss off your customers in the process?
Pizza Boxes are made of cardboard which is not known for it's conductive property's. Also computer motherboards run on 3.3v to 5v which is not enough to even at 20 amps of current to throw a notable spark anywhere.
Pathfinder (1997): Designed more as a engineering test bed mission, than a primarily scientific one. Successfully demonstraited the air bag landing technique and sent back some amazing images. Rover Sojourner could only move with direct sunlight shining on it's solar panels. Did not have rechargable battery packs. Once the power was all used up, the mission was over.
Spirit/Opertunity: Two rover's sent for redunantcy, and to provide coverage for two different land sites. Rovers have rechargable batteries, and radio isotope heaters to keep the electronics from freezing during the cold mars nights/winter. These heaters also mean the rover doesn't have to use battery power to provide this heat, so it greatly reduces battery load, and extends the mission. The heaters use plutonium-238 with a half life of 27.1 years. http://www.lanl.gov/orgs/pa/newsbulletin/2004/02/0 9/text02.shtml
The mars envirornment is dumping a lot less dust onto the solar cells than was esitmated. This means more power for the rovers, and a longer mission life.
A lot of the other parts are standard things. A bearing is a bearing. It would have cost a lot of money to design a bearing that would wear out after two miles of use. P-238 is the isotope of choice for RHU's. A digital camera generally works forever, until you spill pepsi on it. Same with the rover, you take care of it, it'll last.
Think of it as an airplane. I wouldn't get in an airplane that didn't have a sound engine, solidly mounted wings, tires with good tread left one them, ect. Such an plane is safe enough for a flight accross the country, or a hundred. Without it, it's not safe for one trip.
The real test will be to see if these babbies can make it through the mars winter and come back up and run in the spring.
No, the rover's run VxWorks, which is a closed source, for profit real time OS, which Nasa purchased to run them.
/. as being available just recently.
The propriatory rover code may be OS, I know some of the apollo guidance code was mentioned on
That's sort of like saying no more than thirty people drive cars because you see more than that at your local gas station.
Well isn't that the pot calling the kettle black? The point the original poster was making is that setting up a FPGA is a lot more like coding, than it it ship designing. The skill set, methods and tools are nearly the same. In fact I wouldn't be entirely surprised to find that the joystick/C64 is heavily based on a number of the opensource C64 emulators that are around. Not that I think this subtracts from the coolness factor of what she came up with, but it's not like she layed out a 6502 gate by gate by hand.
Your post effectively proves that we aren't.
We still aren't buying it.
Or install the driver either, since that will log your IP , and serial number, and send it too the vendor.
Don't let the door hit you on the ass on the way ouy.