If I became deaf I would get my computers the same way I always have, go to the store and buy it or place an order through a web site. It's not like ordering over the phone is the only way to purchase a computer!
But chemical rockets do not run their engines continuously! They only have enough fuel and oxidizer to run for a limited period of time. The amount of "boost" you can get out of an engine is called the "specific impulse". Actually ion engines have a much higher specific impulse than chemical engines, but their thrust is very low, it's just that they can run for long periods of time.
An RTG (Radioisotope Thermal Generator) like the one on Cassini has previously gone through a very fiery re-entry in a vehicle that was not meant to re-enter, with no problems whatsoever. This is the one that was on the Apollo 13 Lunar Module. It now lies intact in a very deep part of the Pacific ocean.
You really can't compare the number of people killed in a Harrier crash and the number of people killed in an Osprey crash. The reason is that the Osprey can carry more people. The Osprey is a transport, the Harrier's main role is ground attack, though it can also be used as a light fighter. (It can carry infrared guided missiles, but not radar guided. And it has a gun.) Most Harriers only carry one person, the pilot, though there are some that carry two. The Osprey can carry its crew and a bunch of passengers. Using your logic the 747 is very unsafe because when one of them crash it can kill around 400 people! The way to look at the safety of an aircraft is the casualties per 1000 flight hours. Using this measurement the Harrier record is not very good.
For awhile Yahoo! was sponsoring this on the Amtrak California "Capitol" trains between San Jose and Sacramento. One car was outfitted for WiFi access. The trail was ended and the service is no longer available.
Of course, those "synthetics" are usually made from petrochemicals, which come from oil. So, you're encouraging increased oil consumption and drilling in ANWR, right?
Train brakes don't depend on SCADA to apply or release. While the rail industry is working on Electro-Pneumatic brake systems, even these have a normal straight Pneumatic system as back up. The way automatic air brakes work is each car has an air reservoir and control valve that connect to the "train line", the hoses that connect the brake systems on each car and the locomotives. The locomotive's air compressor charges up the air reservoirs through the train line. As long as the train line pressure is the same or above the air reservoir pressure, the brakes are released. To apply the brakes the engineer reduces the pressure in the train line, the control valve then sees the train line pressure is lower than the air reservoir pressure and allows some air into the brake cylinder. The lower the pressure, the more air is allowed into the brake cylinder. If the engineer "big holes it" or puts the brakes into emergency the control valve senses a rapid drop in pressure and "dumps" the air into the brake cylinder. This all done without any electricity at all, just with air pressure. The control valve just uses the air pressure to know what to do.
Since the railroads got rid of cabooses and started using FRED's (F---ing Rear End Devices) there was no way to dump the air from the rear of the train. Some FRED's (which are electrically operated air pressure sensors with telemetery) now have the capability of responding to a command to allow air out the train line from the rear of the train. This allows the emergency brake application to propagate along the train line from both ends of the train and substantially reduces the stopping distance in an emergency brake application.
Believe it or not, this system was invented over 100 years ago, long before SCADA or computers.
Lately the FAA has been issuing NOTAMs (Notice to Airmen) with new restricted areas daily, or even hourly. Where ever Bush goes there's a 30 nm restricted area that pops up, and since he's now on the campaign trail it's quite a problem. Earlier this week they had to get a waiver so the World Aerobatic Championships in Lakeland, FL could continue when Bush dropped in on Tampa.
A big problem with this problem is what about airports like San Diego and San Jose where the approach to the airport is right over the downtown area. San Diego is almost like the legendary checkerboard approach to Hong Kong Kai-Tak!
I don't know what it would be if he was on a spacecraft, but if the president is on a civilian aircraft it would use the callsign "Executive One". Back in the 70's Richard Nixon went on a United Airlines flight to encourage us all to save fuel and not fly our own 707's so often, and it used the "Executive One" callsign.
If the president flys in a Navy aircraft it would be "Navy One", an Army aircraft would be "Army One", etc. But usually he only flies in Air Force and Marine aircraft.
The parts did not fall first on Palestine, Texas. They were falling off went it went over California. Also, the main debris field in Texas is very big. There is a small town named Palestine in that area, but they also fell on other towns.
The real acronym for this is IFF not IFOF. I believe that a Stinger can do an IFF query before launch, but it doesn't make it impossible to fire. Once it's on the way the only thing that can save you is to drop flares or out manuever it.
Wrong, the main engines (SSME) are only used in ascent. They use LOX and LH from the external tank. Once the external tank is jettisoned there is no fuel and oxidizer for the main engines. The deorbit burn uses the orbital manuevering system (OMS) engines.
Wrong. Not every member of the crew was a member of the Armed Forces. Kalpana Chalwa was not military or even former military. You might want to check the facts before making such a statement, but then this is Slashdot and you're an AC so I guess it's to be expected.
The reason so many firefighters were going to Treasure Island is because TI was a damage control school, so they'd be going there for training. TI had a damage control simulator called USS BUTTERCUP that could simulate all sorts of failures and even capsize.
>I take BART into work every day. Every day, I end up standing for half an hour on the way in and another half hour on the way out. Now, remind me, why is mass transit unpopular?
Sounds like something Yogi Berra said once: "No one goes there any more, it's too crowded." If you're standing up on the train it's because there are people in all the seats, so it must be popular, right? If no one ever rode the BART trains there would be lots of seats for you to sit in!
In the 1960's Union Pacific tried developing a coal fired gas turbine. I don't mean the 50 or so Big Blows that used bunker C, this was one that would actually use pulverized coal in the turbine's hot section. It's main problem was as you noted, the ash eroded the turbine components. They tinkered with it for a few years and then gave up.
The gas turbine trains that New York state is having rebuilt are Turboliners that were built by Rohr in the 80's, not the United Aircraft Turbo trains.
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So you've got an office on El Camino Real near San Antonio Road, right?
(For people outside the area, this is where Rambus is located in Los Altos, CA.)
If I became deaf I would get my computers the same way I always have, go to the store and buy it or place an order through a web site. It's not like ordering over the phone is the only way to purchase a computer!
But chemical rockets do not run their engines continuously! They only have enough fuel and oxidizer to run for a limited period of time. The amount of "boost" you can get out of an engine is called the "specific impulse". Actually ion engines have a much higher specific impulse than chemical engines, but their thrust is very low, it's just that they can run for long periods of time.
An RTG (Radioisotope Thermal Generator) like the one on Cassini has previously gone through a very fiery re-entry in a vehicle that was not meant to re-enter, with no problems whatsoever. This is the one that was on the Apollo 13 Lunar Module. It now lies intact in a very deep part of the Pacific ocean.
Throw in some kudzu and you've got a deal!
What about the recent change in the Book of Mormon where a reference to "white" was changed to "pure"? That was just in the last couple of years.
You just looked at the Carter Copter picture and didn't read the details, right. It's not a gyrocopter. Read the details.
You really can't compare the number of people killed in a Harrier crash and the number of people killed in an Osprey crash. The reason is that the Osprey can carry more people. The Osprey is a transport, the Harrier's main role is ground attack, though it can also be used as a light fighter. (It can carry infrared guided missiles, but not radar guided. And it has a gun.) Most Harriers only carry one person, the pilot, though there are some that carry two. The Osprey can carry its crew and a bunch of passengers. Using your logic the 747 is very unsafe because when one of them crash it can kill around 400 people! The way to look at the safety of an aircraft is the casualties per 1000 flight hours. Using this measurement the Harrier record is not very good.
For awhile Yahoo! was sponsoring this on the Amtrak California "Capitol" trains between San Jose and Sacramento. One car was outfitted for WiFi access. The trail was ended and the service is no longer available.
Of course, those "synthetics" are usually made from petrochemicals, which come from oil. So, you're encouraging increased oil consumption and drilling in ANWR, right?
Mate, the hubble wouldn't crash into the sun if you put 10,000 volts through it.
Hubble is orbiting earth and there's no way it could get to the sun unless you hooked it up to a really big rocket.
Train brakes don't depend on SCADA to apply or release. While the rail industry is working on Electro-Pneumatic brake systems, even these have a normal straight Pneumatic system as back up. The way automatic air brakes work is each car has an air reservoir and control valve that connect to the "train line", the hoses that connect the brake systems on each car and the locomotives. The locomotive's air compressor charges up the air reservoirs through the train line. As long as the train line pressure is the same or above the air reservoir pressure, the brakes are released. To apply the brakes the engineer reduces the pressure in the train line, the control valve then sees the train line pressure is lower than the air reservoir pressure and allows some air into the brake cylinder. The lower the pressure, the more air is allowed into the brake cylinder. If the engineer "big holes it" or puts the brakes into emergency the control valve senses a rapid drop in pressure and "dumps" the air into the brake cylinder. This all done without any electricity at all, just with air pressure. The control valve just uses the air pressure to know what to do.
Since the railroads got rid of cabooses and started using FRED's (F---ing Rear End Devices) there was no way to dump the air from the rear of the train. Some FRED's (which are electrically operated air pressure sensors with telemetery) now have the capability of responding to a command to allow air out the train line from the rear of the train. This allows the emergency brake application to propagate along the train line from both ends of the train and substantially reduces the stopping distance in an emergency brake application.
Believe it or not, this system was invented over 100 years ago, long before SCADA or computers.
Huh? Where'd you learn nu-cle-ar physics at?
Lately the FAA has been issuing NOTAMs (Notice to Airmen) with new restricted areas daily, or even hourly. Where ever Bush goes there's a 30 nm restricted area that pops up, and since he's now on the campaign trail it's quite a problem. Earlier this week they had to get a waiver so the World Aerobatic Championships in Lakeland, FL could continue when Bush dropped in on Tampa.
A big problem with this problem is what about airports like San Diego and San Jose where the approach to the airport is right over the downtown area. San Diego is almost like the legendary checkerboard approach to Hong Kong Kai-Tak!
I don't know what it would be if he was on a spacecraft, but if the president is on a civilian aircraft it would use the callsign "Executive One". Back in the 70's Richard Nixon went on a United Airlines flight to encourage us all to save fuel and not fly our own 707's so often, and it used the "Executive One" callsign.
If the president flys in a Navy aircraft it would be "Navy One", an Army aircraft would be "Army One", etc. But usually he only flies in Air Force and Marine aircraft.
The parts did not fall first on Palestine, Texas. They were falling off went it went over California. Also, the main debris field in Texas is very big. There is a small town named Palestine in that area, but they also fell on other towns.
The real acronym for this is IFF not IFOF. I believe that a Stinger can do an IFF query before launch, but it doesn't make it impossible to fire. Once it's on the way the only thing that can save you is to drop flares or out manuever it.
Wrong, the main engines (SSME) are only used in ascent. They use LOX and LH from the external tank. Once the external tank is jettisoned there is no fuel and oxidizer for the main engines. The deorbit burn uses the orbital manuevering system (OMS) engines.
North American Rockwell was bought by Boeing, not Lockheed.
Wrong. Not every member of the crew was a member of the Armed Forces. Kalpana Chalwa was not military or even former military. You might want to check the facts before making such a statement, but then this is Slashdot and you're an AC so I guess it's to be expected.
The reason so many firefighters were going to Treasure Island is because TI was a damage control school, so they'd be going there for training. TI had a damage control simulator called USS BUTTERCUP that could simulate all sorts of failures and even capsize.
It's a hoax done as a school project. It's not serious.
>I take BART into work every day. Every day, I end up standing for half an hour on the way in and another half hour on the way out. Now, remind me, why is mass transit unpopular?
Sounds like something Yogi Berra said once: "No one goes there any more, it's too crowded." If you're standing up on the train it's because there are people in all the seats, so it must be popular, right? If no one ever rode the BART trains there would be lots of seats for you to sit in!
In the 1960's Union Pacific tried developing a coal fired gas turbine. I don't mean the 50 or so Big Blows that used bunker C, this was one that would actually use pulverized coal in the turbine's hot section. It's main problem was as you noted, the ash eroded the turbine components. They tinkered with it for a few years and then gave up.
The gas turbine trains that New York state is having rebuilt are Turboliners that were built by Rohr in the 80's, not the United Aircraft Turbo trains.