It was an unfortunately necessary military strategy. At that point in the war the US was afraid of its ally the Russians as much as it needed to end the war with the Japanese. Pretty much all the major players at that point were at least considering nuclear weapons or had some sort of nuclear program, so they knew how difficult they were to manufacture. The second bomb implied that the US had a stockpile of nuclear weapons well before anyone else even had one. In reality it would have taken many months to manufacture additional weapons.
I guess that's what happens for making sweeping generalizations. While not all weather and coms satellites are geo stationary, the ones I'm familiar with are (INMARSAT). Ok, a quick bit of research shows that I'm mostly wrong at least as far as weather satellites are concerned. Maybe it wouldn't be too hard to piggy-back a weather satellite and a spy satellite.
If they wanted to make it look like a weather/GPS/comm satellite they'd have to put it in a much much higher orbit. The three you mentioned are geo-stationary satellites which orbit at 35,790 km while the spy satellites which go shooting around really fast are at an orbit of more like 700 to 800 km (satellite heights from NASA http://asd-www.larc.nasa.gov/SCOOL/orbits.html). So if you were trying to disguise as one of those, you'd need a much better camera and probably have to worry about other spotting problems and what not. They should just keep working on their replacement to the SR-71 so there isn't any to track.
Actually, bunker oil is one step down from crude. Its the leftover crap after they take out the gasoline, diesel, kerosene, naphtha, lubricating oil (all the stuff they can sell to other people). That being said, since its the left over crap, it comes with really bad emissions. Most ports won't allow you to sit at the pier and spew crap into their air. Its one thing to run a generator or two for lights, its another to be your own mini-power plant for your gianormas data center. The diesel or bio-diesel would be much cleaner burning but more expensive. I don't know how much electrical load a typical data center takes (if there is such a thing) but a fairly normal sized ship generator is 900kW (MAK 6M332 reference unit for anyone who cares).
As mentioned elsewhere, it has an air start system. Basically, there are large bottles of compressed air and a distributer that causes the compressed air to go into the cylinder that is just past Top Dead Center (TDC), when another cylinder gets to that point it lets air into that one, and so on until the engine is rotating fast enough that it will compress and fuel can be injected, starting the whole deal.
As far as fuel costs are concerned, when you buy millions of dollars worth of fuel at a time and measure it by the ton, you can be sure that someone did all the optimization calculations to get the cargo from point a to point b quickly w/ minimal fuel expenditure w/ the least aquisition cost and operating expenditures.
When talking about engines, "Diesel" is the thermodynamic cycle, not an indication of the fuel. A jet engine runs on the Brayton cycle. There are lots of Diesels out there that run on fuel that looks nothing like the #2 FO that you have to run your diesel trucks or heats your home. HFO (heavy fuel oil) is closer to a tar and if you buy your oil from a disreputable dealer, sometimes they mix in old lube oil which isn't anything like FO and has all sorts of nasty crap in it.
Engine selection really depends on the application. For continuous loads, one engine is often better. If you have variable loads, a few smaller engines could be better so that you only run what you need. Diesel engines are most efficient at their rated load so we try to keep them as close to rated as possible. Something like an ocean tug it may be better to have three engines, one for going to the ship, three for pushing it around. Also, for the large engines, you are pretty much required to put them in the stern of the ship right where the propeller goes through. Something like a cruise ship often use multiple small that they can spread accross the bottom of the ship where they can't put people's rooms. Also, if there are passengers, it is easier to dampen the higher frequency vibrations of the smaller engines than the low frequency vibrations of the large engines so the passengers won't feel the engines. I know that was a bit more than you were looking for, but there are all sorts of different considerations that go into the prime mover selction for ships and hopefuly this gives some other ideas to be consider, I think the other posts adequately anwsered the fuel/ air pollution.
Is it possible to make a passport cover that will block the signal when it's in the cover but USC&I can still use thier RFID thing when you take it out?
I have my electric bill right in front of me now (I'm living in Maine right now). Its 0.0838 / KWH PLUS a delivery charge per KWH. I'm paying closer to 10 or 12 cents most likely. Can't really say becase this damn bill is kinda hard to figure out.
I'll nth this suggestion (don't know what were on now). I don't know what version I have (It's at my apartment a few states away) but its a Brother - Network Ready version, picked it up at Staples on sale, worked right away with my Mac and only took a little bit of fiddling with my roommate's Suse-box (It may not have even been anything with the printer he's always tweaking something which kills something else but anyways..) We connected it to our wireless router and it works great, printing wirelessly is a good deal.
You'd actually be suprised how easy it is to close on someone with a gun holstered. I wouldn't recommend it, but if its holstered, most situations you could easily be on them before they had the chance to draw. If they have a gun pointed at you already, thats a different story...
Yeah, you clearly have no clue what you're talking about. The GMDSS (Global Maritime Distress and Safety System) allows INMARSAT as one of the options of long distance communications. If a company doesn't want to go with INMARSAT they still have the option of radio, which they are required to have if they travel to far north or to far south (70 deg N & 70 S) that they are out of the footprint of the satellites and away from coast stations for any part of their voyage. As for making money off the system, the INMARSAT corp is required to not charge for any distress or medical messages. Any other messages passed are for the convenience of the shipping companys and so they should pay. I think the pirate thing has been addressed in another post.
Actually, just clarifing a few things:
1) We have a primary version built, but its pretty much a proto-type, working on next gen version now. Hopefuly we'll get some of our new ideas implemented this year.
2) The Marine Science department has there own ROV that we played around with once or twice to get ideas from. There's was a commercialy built/sold version that has a fancy video camera.
3) The contest is for MATE not SNAME. Its just pretty much the SNAME section who has been working on it. Similar circles.
4) We havn't been able to participate in the actual competion so far. We have had observers at one a few years ago, but most of us (or all depending on who's participating) are at sea during the competition:-( We're working on our own web site that will be up this year hopefuly.
Actually, you might be suprised... I have a lexar jumpdrive that I washed and dried three times and it still works. Much more rugged then most other things I've accidently washed and dried.
...and now with the ISS which wouldn't even be functioning or in use if the Russians hadn't saved our butts several times.
Actually I think if you check your history, you'll discover that the US has had to pay for most of the Russians "contributions" including redesigning at least one of the modules so that it could be used.
Yes, the Russians did suffer through Chernobyl, but America suffered through Three Mile Island.
While a lot of Americans were turned off to nuclear power because of TMI, and possible were a bit scared, I'd hardly say any one "suffered" through the incident. Chernobyl rendered the surronding area a wasteland, TMI is still in use and people still leave within view, the accidents weren't even on the same scale.
Mistakes happen when you're doing new stuff.
Mistakes also happen when you do crappy engineering trying to play catch-up. While I agree that the Russians should be congratulated on doing so well considering what they were working with I don't think they should be held up as an idol for superior technology. Did/do they build good rockets? Yes. Do they build good anything else? Not really.
Re:Sounds like a piracy crackdown, not a ban.
on
China Bans 50 Games
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· Score: 1
Thank goodness for moderaters and reading at a threshold of 1. I only had to read 2!!!
I can count the number of games released in 2004 on my hand.
Wow it must be strange having so many fingers on one hand. Seriously, although they are usually a few months behind a lot of games avalible for the PC are also available for the Mac. If you're a hard-core gamer then the Mac isn't the right hardware but other than that this is an old lame argument that hasn't been valid in years.
This is and intresting concern though. What about where we end up directing the energy instead of where it naturaly lands. I don't remeber from what source but I vaugely remeber hearing disscussions from some cliamatogolgists (I know I butchered that one) about how wind farms were changing local weather because of the energy extracted from the wind.
And one thing that no one seems to be able to anwser is where all this hydrogen is supposed to come from? At least the plants that the bio-diesel is made from will scrub some of the co2 out of the air while there still plants. Its more green than dino-juice.
Slashdot Mirror
It was an unfortunately necessary military strategy. At that point in the war the US was afraid of its ally the Russians as much as it needed to end the war with the Japanese. Pretty much all the major players at that point were at least considering nuclear weapons or had some sort of nuclear program, so they knew how difficult they were to manufacture. The second bomb implied that the US had a stockpile of nuclear weapons well before anyone else even had one. In reality it would have taken many months to manufacture additional weapons.
I guess that's what happens for making sweeping generalizations. While not all weather and coms satellites are geo stationary, the ones I'm familiar with are (INMARSAT). Ok, a quick bit of research shows that I'm mostly wrong at least as far as weather satellites are concerned. Maybe it wouldn't be too hard to piggy-back a weather satellite and a spy satellite.
If they wanted to make it look like a weather/GPS/comm satellite they'd have to put it in a much much higher orbit. The three you mentioned are geo-stationary satellites which orbit at 35,790 km while the spy satellites which go shooting around really fast are at an orbit of more like 700 to 800 km (satellite heights from NASA http://asd-www.larc.nasa.gov/SCOOL/orbits.html). So if you were trying to disguise as one of those, you'd need a much better camera and probably have to worry about other spotting problems and what not. They should just keep working on their replacement to the SR-71 so there isn't any to track.
Actually, bunker oil is one step down from crude. Its the leftover crap after they take out the gasoline, diesel, kerosene, naphtha, lubricating oil (all the stuff they can sell to other people). That being said, since its the left over crap, it comes with really bad emissions. Most ports won't allow you to sit at the pier and spew crap into their air. Its one thing to run a generator or two for lights, its another to be your own mini-power plant for your gianormas data center. The diesel or bio-diesel would be much cleaner burning but more expensive. I don't know how much electrical load a typical data center takes (if there is such a thing) but a fairly normal sized ship generator is 900kW (MAK 6M332 reference unit for anyone who cares).
As mentioned elsewhere, it has an air start system. Basically, there are large bottles of compressed air and a distributer that causes the compressed air to go into the cylinder that is just past Top Dead Center (TDC), when another cylinder gets to that point it lets air into that one, and so on until the engine is rotating fast enough that it will compress and fuel can be injected, starting the whole deal. As far as fuel costs are concerned, when you buy millions of dollars worth of fuel at a time and measure it by the ton, you can be sure that someone did all the optimization calculations to get the cargo from point a to point b quickly w/ minimal fuel expenditure w/ the least aquisition cost and operating expenditures.
When talking about engines, "Diesel" is the thermodynamic cycle, not an indication of the fuel. A jet engine runs on the Brayton cycle. There are lots of Diesels out there that run on fuel that looks nothing like the #2 FO that you have to run your diesel trucks or heats your home. HFO (heavy fuel oil) is closer to a tar and if you buy your oil from a disreputable dealer, sometimes they mix in old lube oil which isn't anything like FO and has all sorts of nasty crap in it.
Engine selection really depends on the application. For continuous loads, one engine is often better. If you have variable loads, a few smaller engines could be better so that you only run what you need. Diesel engines are most efficient at their rated load so we try to keep them as close to rated as possible. Something like an ocean tug it may be better to have three engines, one for going to the ship, three for pushing it around. Also, for the large engines, you are pretty much required to put them in the stern of the ship right where the propeller goes through. Something like a cruise ship often use multiple small that they can spread accross the bottom of the ship where they can't put people's rooms. Also, if there are passengers, it is easier to dampen the higher frequency vibrations of the smaller engines than the low frequency vibrations of the large engines so the passengers won't feel the engines. I know that was a bit more than you were looking for, but there are all sorts of different considerations that go into the prime mover selction for ships and hopefuly this gives some other ideas to be consider, I think the other posts adequately anwsered the fuel/ air pollution.
Is it possible to make a passport cover that will block the signal when it's in the cover but USC&I can still use thier RFID thing when you take it out?
I have my electric bill right in front of me now (I'm living in Maine right now). Its 0.0838 / KWH PLUS a delivery charge per KWH. I'm paying closer to 10 or 12 cents most likely. Can't really say becase this damn bill is kinda hard to figure out.
I'll nth this suggestion (don't know what were on now). I don't know what version I have (It's at my apartment a few states away) but its a Brother - Network Ready version, picked it up at Staples on sale, worked right away with my Mac and only took a little bit of fiddling with my roommate's Suse-box (It may not have even been anything with the printer he's always tweaking something which kills something else but anyways..) We connected it to our wireless router and it works great, printing wirelessly is a good deal.
You mean the person themselves? "A drunken man's words are a sober man's thoughts."
You'd actually be suprised how easy it is to close on someone with a gun holstered. I wouldn't recommend it, but if its holstered, most situations you could easily be on them before they had the chance to draw. If they have a gun pointed at you already, thats a different story...
Would that make it a bar tender?
Googles changes motto to "Don't be too evil."
Yeah, you clearly have no clue what you're talking about. The GMDSS (Global Maritime Distress and Safety System) allows INMARSAT as one of the options of long distance communications. If a company doesn't want to go with INMARSAT they still have the option of radio, which they are required to have if they travel to far north or to far south (70 deg N & 70 S) that they are out of the footprint of the satellites and away from coast stations for any part of their voyage. As for making money off the system, the INMARSAT corp is required to not charge for any distress or medical messages. Any other messages passed are for the convenience of the shipping companys and so they should pay. I think the pirate thing has been addressed in another post.
Poisoned is a good program to use. I've been using it for awhile and it works great and has a nice UI.
Actually, just clarifing a few things: 1) We have a primary version built, but its pretty much a proto-type, working on next gen version now. Hopefuly we'll get some of our new ideas implemented this year. 2) The Marine Science department has there own ROV that we played around with once or twice to get ideas from. There's was a commercialy built/sold version that has a fancy video camera. 3) The contest is for MATE not SNAME. Its just pretty much the SNAME section who has been working on it. Similar circles. 4) We havn't been able to participate in the actual competion so far. We have had observers at one a few years ago, but most of us (or all depending on who's participating) are at sea during the competition :-( We're working on our own web site that will be up this year hopefuly.
The MIT -1 was most likly for changine their banner from "The other" to "The only". They didn't seem to impressed about what they thought was a DOS.
Actually, you might be suprised... I have a lexar jumpdrive that I washed and dried three times and it still works. Much more rugged then most other things I've accidently washed and dried.
They already do this, not with light houses because there's no point really, but its called DGPS, Differential GPS. The Coast Guard operates it.
Actually I think if you check your history, you'll discover that the US has had to pay for most of the Russians "contributions" including redesigning at least one of the modules so that it could be used.
Yes, the Russians did suffer through Chernobyl, but America suffered through Three Mile Island.
While a lot of Americans were turned off to nuclear power because of TMI, and possible were a bit scared, I'd hardly say any one "suffered" through the incident. Chernobyl rendered the surronding area a wasteland, TMI is still in use and people still leave within view, the accidents weren't even on the same scale.
Mistakes happen when you're doing new stuff.
Mistakes also happen when you do crappy engineering trying to play catch-up. While I agree that the Russians should be congratulated on doing so well considering what they were working with I don't think they should be held up as an idol for superior technology. Did/do they build good rockets? Yes. Do they build good anything else? Not really.
Thank goodness for moderaters and reading at a threshold of 1. I only had to read 2!!!
Wow it must be strange having so many fingers on one hand. Seriously, although they are usually a few months behind a lot of games avalible for the PC are also available for the Mac. If you're a hard-core gamer then the Mac isn't the right hardware but other than that this is an old lame argument that hasn't been valid in years.
This is and intresting concern though. What about where we end up directing the energy instead of where it naturaly lands. I don't remeber from what source but I vaugely remeber hearing disscussions from some cliamatogolgists (I know I butchered that one) about how wind farms were changing local weather because of the energy extracted from the wind.
And one thing that no one seems to be able to anwser is where all this hydrogen is supposed to come from? At least the plants that the bio-diesel is made from will scrub some of the co2 out of the air while there still plants. Its more green than dino-juice.