You can unlock the doors, but without the special chip embedded in the car key the motor won't start, and the transmisson is locked. Assuming you can hack the ignition to bypass the key, the transmission still won't go in gear so you are stuck. So, until someone comes up with a way to fake the code in the key and communicate that to the system, the doors unlocking isn't a big dealfor theft except for ripping off your stuff.
Actually the "best" all-around fuel is LOX/Kerosense (RP-1), it's very high energy density, only 1 component is cryogenic, and the other is easily stored but is flammable. See http://www.astronautix.com/props/loxosene.htm
The F1 Engines on the Saturn V are LOX/Kerosene.
LOX/LH2 is the ideal fuel for sure but it is very expensive to make LH2 (cost is over 10X that of Kerosene) and you need two cyrogenic tanks which adds weight. The SSME's are LOX/LH2.
I don't know which technology SpaceShip 1 uses.
Wow, if that's the criteria for political office we'd have to throw out the whole group! Maybe we should list IQ beside the party affiliation on the ballot ?:) Then we'd have no one to blame if we put dummies in office
I recall that some states have signs that say "Tune Radio to 600AM (or there about) for Traffic Info". And in some states they have large LED type signs with info. In TX, they recently decided to put these every 10-15 miles on the Interstates. But, I have to agree with others that it's all for nothing as most people ignore "Right Lane Closed" until the last instant and expect to zoom up and dive into traffic.
Unless it sets off an audible alarm or big light on the dash it's going to be ignored!
Funny you should say that. I saw an RFP the other day on the MSFC site for a new LOX/Kerosene rocket engine for the NGLT. Seems someone at NASA wants to build a moderately cheap BIG rocket again. Not quite a S-V but not little.
I know the article was a Joke. It's amazing to me how someone can take an article like that and make it into a political diatribe. And that it gets modded up to a 5! I think ideals and high standards are good things for young folks to have but they should be rooted in reality, no knee-jerk politics of either side.
I've been reading/. about 5 months now and have learned a few things, mostly that Geeks hate rules made by the Government, SCO sucks, BillGates (or GWB) is the AntiChrist, and that we have some folks here who should be writing jokes for a living not developing software (it probably pays more too).
I agree there are challenges ahead, but when we decided to go to the moon we could hardly build rockets that didn't blow up. The journey of a 1000 miles begins with a single step. They have taken the first step on a long path.
What the Fsck is funny about this? RTFA about where the costs come from. The moderators would do well not to mod up posts that have nothing wise or informative to say, that is getting to be a bad habit. I get tired of a place that is supposed to be a type of technical forum being a place where poltical rhetoric and nonsense replaces facts. Or can the younger generation who post here not understand facts? As for folks overspending, that happens even without Christmas, and even in good economic times. Lots of people have to get the latest and greatest this or that regardless of whether they can afford it. It Sad not funny, and it happens regardless of who is in the White House.
Maybe not 50 years. I happened to run into one of the toplevel scientists on that project the other day at our local NASA facility. He claims that they are much further along than the public thinks they are. They have adequate funding for the Research (for now) and are actually HIRING people who want to work on the problems (don't ask for much in salary!). They seem really postive they can make this thing work. That "can-do" attitude was what got us to the moon in the 1970's. It's good to see that coming back.
You work ONLY 8 hours a day and 5 days a week? You Slacker! Next thing you'll tell me is they PAY you too. After all all your boss has to do is shake a few trees and engineers fall out in clumps. You better shape up buddy!
For the record, I think Clinton was THE worst president ever. I think Reagan was one of the best. I think Bush has potential to be very good but not one of the best, a lot depends on his second term. You don't have to be great, just effective.
Absolutely correct. It doesn't take a lot of room to store a few vials of Anthrax, or a few gallons of Nerve Gas. They could be just about anywhere, disquised as something else, stashed inside holes, false walls, or stuck down old oil wells, buried in a fake grave, etc. The only easy stuff to find is nuclear material as it has to be well shielded, which makes it harder to hide but not impossible. Saddam had 12 yrs to find ways to hide things in a country the size of California, not to mention he had friends in other Arab countries who may be minding the store. It's not going to be an easy job.
I WORK FOR NASA. The engineers are anything but infalliable. My job is to find mistakes made by overconfident/untrained engineers, and I find a LOT of them. NASA has as much excellent Engineering as it does bad. The engineers and managers as unfalliable demi-gods attitude cost us Challenger and Columbia and 14 lives. Come do my job and you'll have a different opinion.
Re:35 min. NY to LA passenger flights? Keep dreami
on
The Future of Flight
·
· Score: 1
Really? Hmm...if thats the case then the argument they used to retire it (too costly) was bogus? I would however like to see some facts to back up that assertion. BA itself may have made money but did the Concorde?
There are simply a LOT more High School students than college students, and you can usually use that same calculator the first year of college then you may need to upgrade. High school students can't justify upgrading, but college students can. The upgrade market is much smaller and more specialized and that's where HP has been more competitive. Now if someone would invent an OS for the HP's that got rid of that damn RPN that would be a worthwhile thing (it may exist, I don't want to go goggling right now). Both are good products, so the decision to buy depends on price and marketing. TI pushes hard in the schools, HP doesn't. TI's efforts have paid off, giving more Sales which can drive down the margin on each unit which means they can offer a better price which means more Sales....
Oh I see now..you are an enviro-wacko. I sure hope you walk your talk. Using the Internet and a PC pretty much violates your principles, as I'm sure several species were threatened to extract the oil for the plastic, and the homes for the programmers who invented the OS you use and the programs you run, not to mention the copper wiring in the cables that are the physcial layer of the Internet was mined in South America or Africa and I'm sure some specie was displaced. And, if you own any mode of transportation other than your feet you are harming the environment in some way due to the manufacturing of even something as simple as a bicycle. Your arguments have more holes than Swiss Cheese. But I gotta admit you didn't post this drivel as an AC so that is in your favor.
Mod this one up!!!
As far as driving places, don't forget about that little thing called the Interstate Highway System which makes travel easier. I don't know of any other place with as many major routes from here to there.
Last time I looked the price of a Amtrak ticket from Washington to NY was about $100 each way. Having lived in DFW 20+ yrs yes the traffic is horrid, but mass transit is just starting to arrive and it won't really be in place for another 20 yrs so we have to drive. The trains may be OK within the city but if you need to go somewhere else you aren't going to get there w/o a car.
"decentralized manufacturing technologies beat them to it."
What the heck? You think the world economy is going to collapse? The economy is GLOBAL and will continue to be that way. Sure, there will be migration to lower cost centers for this and that but the trade will be more global requiring MORE travel. Plus haven't you ever heard of "pleasure travel", folks who go strange places (so to speak) on vacation? As tight as leisure time is today they might likely be the ones willing to trade more money for a very short NY-LA flight so they have more time at thier destination to "relax".
Re:35 min. NY to LA passenger flights? Keep dreami
on
The Future of Flight
·
· Score: 2, Insightful
Technology aside (assume it will exist) the economics are going to be tough. The Concorde went under because no one wanted to pay that kind of transatlantic fare, which meant the plane was always operating in the red. Any new technology such as a 35 Min NY-LA plane would need tends to be very expensive at first, so ticket prices would be sky high. Not to mention getting something like that FAA certified to carry passengets (so it and they can be insured) would be a nightmare and very expensive. With high-speed Internet access so cheap, you can hold a LOT of video-meetings for the price of one plane ticket. Then if you really need to go in person to close the deal, you take the lowest cost flight. In fact, most employers require you take the lowest cost flight unless it would make you arrive too late. It would be very hard to justify a (guessing here) $25,000 ticket just to save 4 hours time unless someone made $6,000/hr. I can see cases where it would pay but they are not prevalent enough to subsidize the operational costs. One positive aspect is that donor organs could be shipped anywhere for transplant, versus some limits now due to flight times. That might be worth $25,000!! Of course, a Government could give the firm an operating subsidy which would help prices to be lower. If you were looking at it strictly as a free market venture you likely wouldn't make it.
Military aircraft like the Global Hawk and others are relatively low cost and thus much more expendable than manned aircraft. Thats why they are sent on the difficult missions, if they lose one, so what? Pilots are expensive and non-expendable, UAVs are cheap and expendable. Modern planes are expensive ($20M+ each) and UAVs are a lot cheaper. Plus, at the price point the UAVs are, I doubt they have much in the way of secondary and tertiarty backups that airliners have to have. If something fails they gather as much data as they can, then let it fall out of the sky.
There is some question about Osama's health, but there have also been reports that he has had a transplant in Pakistan. Osama can hide in the mountains where it is darn hard to find him, OR he can dress up and appear in public in any number of countries, live a lavish lifestyle and no one will know (or he used to, the money is tight now). He is a man who spent years putting together a world-wide network of beleivers based on religion. Saddam's "network" was based on fear, a huge difference. As soon as the fear is gone due to the non-existance of relatiation, the attacks from Iraqi's should go down. However, the terrorists sent in from other places who want a "Jihad" will continue to be a problem until Iraq's borders are secure.
Like I said read the CAIB, you want me to qoute the pages? I have the report right here, when someone does not report the facts about something that cost lives, I damn sure AM going to shout BS. There should be a lot more shouting BS at NASA anyway. As for the foam, The CAIB sent samples out to a PhD who did all kinds of tests See CAIB report pages 53-54, and 122-124 where the issues of foam fracture and potential for loss from Hydrostatic pressure are discussed. The CAIB clearly states in the 3rd from last paragraph on the right hand side of page 53 that ice in the foam is a commonly held misconception, water absorption is negligible. Case Closed.
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You can unlock the doors, but without the special chip embedded in the car key the motor won't start, and the transmisson is locked. Assuming you can hack the ignition to bypass the key, the transmission still won't go in gear so you are stuck. So, until someone comes up with a way to fake the code in the key and communicate that to the system, the doors unlocking isn't a big dealfor theft except for ripping off your stuff.
Actually the "best" all-around fuel is LOX/Kerosense (RP-1), it's very high energy density, only 1 component is cryogenic, and the other is easily stored but is flammable. See http://www.astronautix.com/props/loxosene.htm The F1 Engines on the Saturn V are LOX/Kerosene. LOX/LH2 is the ideal fuel for sure but it is very expensive to make LH2 (cost is over 10X that of Kerosene) and you need two cyrogenic tanks which adds weight. The SSME's are LOX/LH2. I don't know which technology SpaceShip 1 uses.
So are the Space Shuttles :) They glide like a brick though and are not really maneurverable like the SS1. Rutan has one hell of a shot at the prize.
Wow, if that's the criteria for political office we'd have to throw out the whole group! Maybe we should list IQ beside the party affiliation on the ballot ? :) Then we'd have no one to blame if we put dummies in office
I recall that some states have signs that say "Tune Radio to 600AM (or there about) for Traffic Info". And in some states they have large LED type signs with info. In TX, they recently decided to put these every 10-15 miles on the Interstates. But, I have to agree with others that it's all for nothing as most people ignore "Right Lane Closed" until the last instant and expect to zoom up and dive into traffic. Unless it sets off an audible alarm or big light on the dash it's going to be ignored!
Funny you should say that. I saw an RFP the other day on the MSFC site for a new LOX/Kerosene rocket engine for the NGLT. Seems someone at NASA wants to build a moderately cheap BIG rocket again. Not quite a S-V but not little.
Of course, but throwing money at a problem does NOT guarantee a solution!! The drive, desire and dedication of those doing the work is important.
I know the article was a Joke. It's amazing to me how someone can take an article like that and make it into a political diatribe. And that it gets modded up to a 5! I think ideals and high standards are good things for young folks to have but they should be rooted in reality, no knee-jerk politics of either side. I've been reading /. about 5 months now and have learned a few things, mostly that Geeks hate rules made by the Government, SCO sucks, BillGates (or GWB) is the AntiChrist, and that we have some folks here who should be writing jokes for a living not developing software (it probably pays more too).
I agree there are challenges ahead, but when we decided to go to the moon we could hardly build rockets that didn't blow up. The journey of a 1000 miles begins with a single step. They have taken the first step on a long path.
What the Fsck is funny about this? RTFA about where the costs come from. The moderators would do well not to mod up posts that have nothing wise or informative to say, that is getting to be a bad habit. I get tired of a place that is supposed to be a type of technical forum being a place where poltical rhetoric and nonsense replaces facts. Or can the younger generation who post here not understand facts? As for folks overspending, that happens even without Christmas, and even in good economic times. Lots of people have to get the latest and greatest this or that regardless of whether they can afford it. It Sad not funny, and it happens regardless of who is in the White House.
Maybe not 50 years. I happened to run into one of the toplevel scientists on that project the other day at our local NASA facility. He claims that they are much further along than the public thinks they are. They have adequate funding for the Research (for now) and are actually HIRING people who want to work on the problems (don't ask for much in salary!). They seem really postive they can make this thing work. That "can-do" attitude was what got us to the moon in the 1970's. It's good to see that coming back.
I was being sarcastic. No one works 8-5, we might only charge for that time, but we work more. I was here to 8PM the last few evenings.
You work ONLY 8 hours a day and 5 days a week? You Slacker! Next thing you'll tell me is they PAY you too. After all all your boss has to do is shake a few trees and engineers fall out in clumps. You better shape up buddy!
For the record, I think Clinton was THE worst president ever. I think Reagan was one of the best. I think Bush has potential to be very good but not one of the best, a lot depends on his second term. You don't have to be great, just effective.
Absolutely correct. It doesn't take a lot of room to store a few vials of Anthrax, or a few gallons of Nerve Gas. They could be just about anywhere, disquised as something else, stashed inside holes, false walls, or stuck down old oil wells, buried in a fake grave, etc. The only easy stuff to find is nuclear material as it has to be well shielded, which makes it harder to hide but not impossible. Saddam had 12 yrs to find ways to hide things in a country the size of California, not to mention he had friends in other Arab countries who may be minding the store. It's not going to be an easy job.
I WORK FOR NASA. The engineers are anything but infalliable. My job is to find mistakes made by overconfident/untrained engineers, and I find a LOT of them. NASA has as much excellent Engineering as it does bad. The engineers and managers as unfalliable demi-gods attitude cost us Challenger and Columbia and 14 lives. Come do my job and you'll have a different opinion.
Really? Hmm...if thats the case then the argument they used to retire it (too costly) was bogus? I would however like to see some facts to back up that assertion. BA itself may have made money but did the Concorde?
There are simply a LOT more High School students than college students, and you can usually use that same calculator the first year of college then you may need to upgrade. High school students can't justify upgrading, but college students can. The upgrade market is much smaller and more specialized and that's where HP has been more competitive. Now if someone would invent an OS for the HP's that got rid of that damn RPN that would be a worthwhile thing (it may exist, I don't want to go goggling right now). Both are good products, so the decision to buy depends on price and marketing. TI pushes hard in the schools, HP doesn't. TI's efforts have paid off, giving more Sales which can drive down the margin on each unit which means they can offer a better price which means more Sales....
Oh I see now..you are an enviro-wacko. I sure hope you walk your talk. Using the Internet and a PC pretty much violates your principles, as I'm sure several species were threatened to extract the oil for the plastic, and the homes for the programmers who invented the OS you use and the programs you run, not to mention the copper wiring in the cables that are the physcial layer of the Internet was mined in South America or Africa and I'm sure some specie was displaced. And, if you own any mode of transportation other than your feet you are harming the environment in some way due to the manufacturing of even something as simple as a bicycle. Your arguments have more holes than Swiss Cheese. But I gotta admit you didn't post this drivel as an AC so that is in your favor.
Mod this one up!!! As far as driving places, don't forget about that little thing called the Interstate Highway System which makes travel easier. I don't know of any other place with as many major routes from here to there. Last time I looked the price of a Amtrak ticket from Washington to NY was about $100 each way. Having lived in DFW 20+ yrs yes the traffic is horrid, but mass transit is just starting to arrive and it won't really be in place for another 20 yrs so we have to drive. The trains may be OK within the city but if you need to go somewhere else you aren't going to get there w/o a car.
"decentralized manufacturing technologies beat them to it." What the heck? You think the world economy is going to collapse? The economy is GLOBAL and will continue to be that way. Sure, there will be migration to lower cost centers for this and that but the trade will be more global requiring MORE travel. Plus haven't you ever heard of "pleasure travel", folks who go strange places (so to speak) on vacation? As tight as leisure time is today they might likely be the ones willing to trade more money for a very short NY-LA flight so they have more time at thier destination to "relax".
Technology aside (assume it will exist) the economics are going to be tough. The Concorde went under because no one wanted to pay that kind of transatlantic fare, which meant the plane was always operating in the red. Any new technology such as a 35 Min NY-LA plane would need tends to be very expensive at first, so ticket prices would be sky high. Not to mention getting something like that FAA certified to carry passengets (so it and they can be insured) would be a nightmare and very expensive. With high-speed Internet access so cheap, you can hold a LOT of video-meetings for the price of one plane ticket. Then if you really need to go in person to close the deal, you take the lowest cost flight. In fact, most employers require you take the lowest cost flight unless it would make you arrive too late. It would be very hard to justify a (guessing here) $25,000 ticket just to save 4 hours time unless someone made $6,000/hr. I can see cases where it would pay but they are not prevalent enough to subsidize the operational costs. One positive aspect is that donor organs could be shipped anywhere for transplant, versus some limits now due to flight times. That might be worth $25,000!! Of course, a Government could give the firm an operating subsidy which would help prices to be lower. If you were looking at it strictly as a free market venture you likely wouldn't make it.
Military aircraft like the Global Hawk and others are relatively low cost and thus much more expendable than manned aircraft. Thats why they are sent on the difficult missions, if they lose one, so what? Pilots are expensive and non-expendable, UAVs are cheap and expendable. Modern planes are expensive ($20M+ each) and UAVs are a lot cheaper. Plus, at the price point the UAVs are, I doubt they have much in the way of secondary and tertiarty backups that airliners have to have. If something fails they gather as much data as they can, then let it fall out of the sky.
There is some question about Osama's health, but there have also been reports that he has had a transplant in Pakistan. Osama can hide in the mountains where it is darn hard to find him, OR he can dress up and appear in public in any number of countries, live a lavish lifestyle and no one will know (or he used to, the money is tight now). He is a man who spent years putting together a world-wide network of beleivers based on religion. Saddam's "network" was based on fear, a huge difference. As soon as the fear is gone due to the non-existance of relatiation, the attacks from Iraqi's should go down. However, the terrorists sent in from other places who want a "Jihad" will continue to be a problem until Iraq's borders are secure.
Like I said read the CAIB, you want me to qoute the pages? I have the report right here, when someone does not report the facts about something that cost lives, I damn sure AM going to shout BS. There should be a lot more shouting BS at NASA anyway. As for the foam, The CAIB sent samples out to a PhD who did all kinds of tests See CAIB report pages 53-54, and 122-124 where the issues of foam fracture and potential for loss from Hydrostatic pressure are discussed. The CAIB clearly states in the 3rd from last paragraph on the right hand side of page 53 that ice in the foam is a commonly held misconception, water absorption is negligible. Case Closed.