Ah but it does if the second wrong is less wrong and replaces the previous wrong.
Wrong is an absolute not a relative word. The tube technology is just an idea right now and there are many hurdles to get over to even know it it will work. Throwing away less money is still throwing away money needlessly.
1. That assumes that the tubes can follow existing right of ways. That is not valid considering that curves taken at 600kmh are much wider than at 110kph it is doubtful that existing rights of way will work.. 2. Have you seen land contours? With all the ups and downs and lefts and rights it will be like a roller coaster. To try to keep the ride smooth the towers could get very tall. There will be places where corners can not be made fast enough and the tube will have to go underground. 3. You are talking a lot of rare earth magnets, high power electronics, light weight materials, etc. Industry is very good at making rails. That can not be said for a technology that has not even been designed yet.
If you have an issue with high speed trains then work against them. Trying to divert attention to another useless technology is the wrong way to do it.
Two wrongs don't make a right. Replacing a bad project with another bad project is not a good idea. The tube project has a small budget but that does not mean that the budget will be met. How can a valid budget be made if the following factors are not taken into account; 1. route and cost of land 2. where the tube will be above ground and below ground. 3. material costs The budget is a vague estimate the real costs could be 10 to 100 times as much.
We deserve better then an over priced crappy train.
Is a technology that has not even made if to the drawing boards and may not work after spending hundreds of millions on research better? I don't think so. Just because it is cutting edge does not mean it will work.
Actually one of the benefits of the Hyperloop idea is that it's designed to follow the existing government-owned highway right-of-way except for in a very few places where its path winds too much to allow for the high pod speeds.
Current government owned right of ways are surveyed for trains and roads. They are not sized for high speed curves. I did some calculations and at 600kph the radius of a curve would have to be 5.7 kms to keep the angular acceleration at 1/2G. Very few, if any, right of ways are surveyed to that standard. Most follow the contours of the land and have many more sharp curves. Once off the right of way it will take a lot to get back on.
difficulty of passing through already-developed areas
The pylons have to touch the ground somewhere? In built up areas there will probably already be something there. Even in the best cases would you want a pylon at your back door and/or a tube over your house? There is also the issue with taller buildings. Keep in mind the angular acceleration issue and you will see that the tube can not change direction very quickly. There will be buildings in the way.
A farmer is extremely unlikely to be willing to sell a strip of land to build a road that splits his farm in two, but might be far more receptive to selling a few small plots of land to build pylons on and a right-of-way through his airspace.
Do you realize how much a pain it is to have pylons in a field? Many fields are watered my moving sprinklers; Tilling, planting and harvesting is done by large machines that are not very maneuverable. An overhead track would still effectively cut the field into two sections. There is a reason why most local power lines follow roads. Too many poles. Usually when you see them going across a field it is to get power to the water pump on the well.
My main issue with the tube technology is that all the articles seem to assume that the tube will be straight. In the real world there are very few straight lines. Between any two distant points there will be mountains, valleys, cities, rivers, hills, houses, etc. The tube will not be straight unless you want to build it underground all the way then it becomes very expensive. Even underground there will be issues with valleys where the tube may have to be suspended. To me it is a given that the tube will have to have curves in it which brings me to the math of curves.
The acceleration of an object moving along a curve is a= v^2/r or r = v^2/a. If the object is moving at 600kph and we want to keep the acceleration to 1/2G at most the radius would be 167^2/4.9 = 5.7 km. That would mean to alter course by 45 degrees it would take 9kms. That is a very long curve. It is even worse in that the curve would have to have an in run and an out run to make the transition manageable. Remember that these curves are not just left and right. If one goes over the brow of a hill negative G's could be an issue. The human body can not handle feeling lighter very well. people get sick pretty fast.
To keep these smooth curves there will be very few places where the tube will be sitting on solid ground. Much of the time it will be under ground or suspended in the air. Both of those make construction and maintenance very expensive.
Depends on how it is done. A simple icon for the next turn and a colour coded distance readout would not be that distracting. Maybe the icon could get bigger as the distance got smaller. There is a big difference between trying to read words and dealing with icons.
Most posts seem to be about whether or not one will get a reference. I look at it a different way. How would I feel if another employee left me in the lurch by not giving notice. It is especially important in the high tech industry to finish lose ends and transfer responsibilities and knowledge. Is everyone so self centered that they will abandon their coworkers to pick up the pieces? Notice is a courtesy to employers and coworkers.
The discussion is about location tracking of individuals.
Most of your arguments are specious at best. Where are the citations for any of these charges? I have never seen any of my large purchases showing up in trade magazines.
There are terminal in Sam's that connect to the sheriff's network and many of the security people are commissioned officers.
If you don't want to be tracked by an employer who tracks then find and employer who does not track. I have no problem with an employer knowing where I am during working hours. I am on their time. If they track me on my time then there is an issue.
a better question is, why do so many gays (and others) want so very badly to be in a place where they are so clearly not wanted and appreciated?
It could be due to the fact that they were Scouts when they were younger and want to carry on the tradition. In many areas the Boy Scouts are the only organization that offers outdoor activities. Many gay fathers would like to be a Scout Master in the troops of their children.
we would not allow a straight man to sleep in a tent in close proximity to young girls who are not his offspring because he might be a sick fuck
At coed camps adults of the opposite gender sleep near children all the time. There are female Scout Masters who are allowed to sleep in a tent in close proximity to boys; why not gay men? You are also incorrect as the Girl scouts allow male volunteers.
Q: Who can volunteer?
A: Membership is open to women and men 18 and over who accept the Girl Scout Promise and Law.
There is a basic human right not to be discriminated on te basis of skin colour. Horses are not human and there is no right with respect to cloning or not cloning. You are comparing apples to oranges.
According to this some Sea Harriers were flown by RAF pilots;
Mirage IIIEA of FAA Grupo 8 shot down north of West Falkland by Flt Lt Barton RAF in No.801 Sea Harrier using Sidewinder (4.10 pm). Lt Perona ejected safely.
A-4Q Skyhawk of CANA 3 Esc also shot down near Swan Island in Falkland Sound in same incident by Flt Lt Leeming RAF in No.800 Sea Harrier using 30mm cannon (3.12 pm). Lt Marquez was killed.
Puma SA.330L of CAB 601 flew into ground near Shag Cove House, West Falkland attempting to evade Flt Lt Morgan RAF in No.800 NAS Sea Harrier (10.30 am). All crew escaped.
- Two A-4B Skyhawks of FAA Grupo 5 shot down over Choiseul Sound by Flt Lt Morgan RAF and a third by Lt D Smith in No.800 NAS Sea Harriers using Sidewinders (4.45 pm). Lt Arraras, Lt Bolzan and Ensign Vazquez killed.
Though they were not RAF aircraft they were RAF pilots.
If most of the Sea Harriers had been lost, the GR.3s would have replaced them in air patrol duties, even though the Harrier GR.3 was not designed for air defence operations; as such the GR.3s quickly had their outboard weapons pylons modified to take air-to-air Sidewinder missiles.
The difference between this and electricity is that there are hundreds of different uses for electricity. This tub is just a different implementation of already existing technology and has only one use. By the way, Franklin did not discover electricity; he was merely one of many.
The difference is scale. The things you mention do not cost a lot of move and worst case a few people doe for no gain. An outpost on Mars will cost hundreds of billions of dollars for little or no good at all. There are far better things that can be done with that money than send a few people to live on a hole in the ground on Mars.
Matthew said he improved upon his first design of the Grizzly by making the barrel 50 percent larger, increasing the size of the receiver (the main portion that holds the firing mechanism),
Good things to do.
and adding groves to the inside of the barrel.
Maybe not so good. Depending on the depth of the grooves they may allow gases past the bullet and decrease the muzzle velocity. If they are helical groves they may increase accuracy.
By the way, without helical grooves the weapon is a musket and not a rifle.
I wonder what the muzzle velocity and accuracy of the weapon is.
The video will pay for less than 10% of their initial costs and none of their maintenance. There is also the fickle nature of the TV crowd. They will quickly get tired of watching the same people do the same things and have the same interactions day after day. Why do you think series like "Big Brother" have different casts each season. Swapping casts is not something viable on Mars.Another issue is that people sent to mars would be selected for their level headed attitudes and ability to live with others in confined spaces. There would be little or no drama between settlers. Finally, a big part of series like "Big Brother" is the scheming and backstabbing to get other people kicked out of the house. That would not be present on Mars. It comes down to the same reason that there is not a reality series watching people on the space station; life in space is boring to watch. The series would last a few years until the ratings tank.
Slashdot Mirror
Ah but it does if the second wrong is less wrong and replaces the previous wrong.
Wrong is an absolute not a relative word. The tube technology is just an idea right now and there are many hurdles to get over to even know it it will work. Throwing away less money is still throwing away money needlessly.
1. That assumes that the tubes can follow existing right of ways. That is not valid considering that curves taken at 600kmh are much wider than at 110kph it is doubtful that existing rights of way will work..
2. Have you seen land contours? With all the ups and downs and lefts and rights it will be like a roller coaster. To try to keep the ride smooth the towers could get very tall. There will be places where corners can not be made fast enough and the tube will have to go underground.
3. You are talking a lot of rare earth magnets, high power electronics, light weight materials, etc. Industry is very good at making rails. That can not be said for a technology that has not even been designed yet.
If you have an issue with high speed trains then work against them. Trying to divert attention to another useless technology is the wrong way to do it.
Two wrongs don't make a right. Replacing a bad project with another bad project is not a good idea. The tube project has a small budget but that does not mean that the budget will be met. How can a valid budget be made if the following factors are not taken into account;
1. route and cost of land
2. where the tube will be above ground and below ground.
3. material costs
The budget is a vague estimate the real costs could be 10 to 100 times as much.
We deserve better then an over priced crappy train.
Is a technology that has not even made if to the drawing boards and may not work after spending hundreds of millions on research better? I don't think so. Just because it is cutting edge does not mean it will work.
Actually one of the benefits of the Hyperloop idea is that it's designed to follow the existing government-owned highway right-of-way except for in a very few places where its path winds too much to allow for the high pod speeds.
Current government owned right of ways are surveyed for trains and roads. They are not sized for high speed curves. I did some calculations and at 600kph the radius of a curve would have to be 5.7 kms to keep the angular acceleration at 1/2G. Very few, if any, right of ways are surveyed to that standard. Most follow the contours of the land and have many more sharp curves. Once off the right of way it will take a lot to get back on.
difficulty of passing through already-developed areas
The pylons have to touch the ground somewhere? In built up areas there will probably already be something there. Even in the best cases would you want a pylon at your back door and/or a tube over your house? There is also the issue with taller buildings. Keep in mind the angular acceleration issue and you will see that the tube can not change direction very quickly. There will be buildings in the way.
A farmer is extremely unlikely to be willing to sell a strip of land to build a road that splits his farm in two, but might be far more receptive to selling a few small plots of land to build pylons on and a right-of-way through his airspace.
Do you realize how much a pain it is to have pylons in a field? Many fields are watered my moving sprinklers; Tilling, planting and harvesting is done by large machines that are not very maneuverable. An overhead track would still effectively cut the field into two sections. There is a reason why most local power lines follow roads. Too many poles. Usually when you see them going across a field it is to get power to the water pump on the well.
My main issue with the tube technology is that all the articles seem to assume that the tube will be straight. In the real world there are very few straight lines. Between any two distant points there will be mountains, valleys, cities, rivers, hills, houses, etc. The tube will not be straight unless you want to build it underground all the way then it becomes very expensive. Even underground there will be issues with valleys where the tube may have to be suspended. To me it is a given that the tube will have to have curves in it which brings me to the math of curves.
The acceleration of an object moving along a curve is a= v^2/r or r = v^2/a. If the object is moving at 600kph and we want to keep the acceleration to 1/2G at most the radius would be 167^2/4.9 = 5.7 km. That would mean to alter course by 45 degrees it would take 9kms. That is a very long curve. It is even worse in that the curve would have to have an in run and an out run to make the transition manageable. Remember that these curves are not just left and right. If one goes over the brow of a hill negative G's could be an issue. The human body can not handle feeling lighter very well. people get sick pretty fast.
To keep these smooth curves there will be very few places where the tube will be sitting on solid ground. Much of the time it will be under ground or suspended in the air. Both of those make construction and maintenance very expensive.
Depends on how it is done. A simple icon for the next turn and a colour coded distance readout would not be that distracting. Maybe the icon could get bigger as the distance got smaller. There is a big difference between trying to read words and dealing with icons.
Most posts seem to be about whether or not one will get a reference. I look at it a different way. How would I feel if another employee left me in the lurch by not giving notice. It is especially important in the high tech industry to finish lose ends and transfer responsibilities and knowledge. Is everyone so self centered that they will abandon their coworkers to pick up the pieces? Notice is a courtesy to employers and coworkers.
What is your point?
The researchers tested the ambient backscatter technique with credit card-sized prototype devices placed within several feet of each other.
Not very far.
The discussion is about location tracking of individuals.
Most of your arguments are specious at best. Where are the citations for any of these charges? I have never seen any of my large purchases showing up in trade magazines.
There are terminal in Sam's that connect to the sheriff's network and many of the security people are commissioned officers.
It is called the internet.
If you don't want to be tracked by an employer who tracks then find and employer who does not track. I have no problem with an employer knowing where I am during working hours. I am on their time. If they track me on my time then there is an issue.
a better question is, why do so many gays (and others) want so very badly to be in a place where they are so clearly not wanted and appreciated?
It could be due to the fact that they were Scouts when they were younger and want to carry on the tradition. In many areas the Boy Scouts are the only organization that offers outdoor activities. Many gay fathers would like to be a Scout Master in the troops of their children.
we would not allow a straight man to sleep in a tent in close proximity to young girls who are not his offspring because he might be a sick fuck
At coed camps adults of the opposite gender sleep near children all the time. There are female Scout Masters who are allowed to sleep in a tent in close proximity to boys; why not gay men? You are also incorrect as the Girl scouts allow male volunteers.
Q: Who can volunteer?
A: Membership is open to women and men 18 and over who accept the Girl Scout Promise and Law.
There is a basic human right not to be discriminated on te basis of skin colour. Horses are not human and there is no right with respect to cloning or not cloning. You are comparing apples to oranges.
If you mean practicing a few times using the ski jump take off then yes. Everything else was still RAF.
The only "Navalizing" done was fitting Sidewinders. They actually had quite a corrosion problem because they were not the naval version.
When they are using heat seeking Sidewinders and being directed by radar picket ships the lack of radar is not insurmountable.
According to this some Sea Harriers were flown by RAF pilots;
Mirage IIIEA of FAA Grupo 8 shot down north of West Falkland by Flt Lt Barton RAF in No.801 Sea Harrier using Sidewinder (4.10 pm). Lt Perona ejected safely.
A-4Q Skyhawk of CANA 3 Esc also shot down near Swan Island in Falkland Sound in same incident by Flt Lt Leeming RAF in No.800 Sea Harrier using 30mm cannon (3.12 pm). Lt Marquez was killed.
Puma SA.330L of CAB 601 flew into ground near Shag Cove House, West Falkland attempting to evade Flt Lt Morgan RAF in No.800 NAS Sea Harrier (10.30 am). All crew escaped.
- Two A-4B Skyhawks of FAA Grupo 5 shot down over Choiseul Sound by Flt Lt Morgan RAF and a third by Lt D Smith in No.800 NAS Sea Harriers using Sidewinders (4.45 pm). Lt Arraras, Lt Bolzan and Ensign Vazquez killed.
Though they were not RAF aircraft they were RAF pilots.
from this;
If most of the Sea Harriers had been lost, the GR.3s would have replaced them in air patrol duties, even though the Harrier GR.3 was not designed for air defence operations; as such the GR.3s quickly had their outboard weapons pylons modified to take air-to-air Sidewinder missiles.
There were 10 RAF Harriers on the Hermes and I bet they got in some air combat.
The difference between this and electricity is that there are hundreds of different uses for electricity. This tub is just a different implementation of already existing technology and has only one use. By the way, Franklin did not discover electricity; he was merely one of many.
Slow.
Inaccurate
Messy
There is a difference between dying due a resupply ship malfunction (or cutting of funds) and dying in a few thousand generations.
The difference is scale. The things you mention do not cost a lot of move and worst case a few people doe for no gain. An outpost on Mars will cost hundreds of billions of dollars for little or no good at all. There are far better things that can be done with that money than send a few people to live on a hole in the ground on Mars.
Matthew said he improved upon his first design of the Grizzly by making the barrel 50 percent larger, increasing the size of the receiver (the main portion that holds the firing mechanism),
Good things to do.
and adding groves to the inside of the barrel.
Maybe not so good. Depending on the depth of the grooves they may allow gases past the bullet and decrease the muzzle velocity. If they are helical groves they may increase accuracy.
By the way, without helical grooves the weapon is a musket and not a rifle.
I wonder what the muzzle velocity and accuracy of the weapon is.
The video will pay for less than 10% of their initial costs and none of their maintenance. There is also the fickle nature of the TV crowd. They will quickly get tired of watching the same people do the same things and have the same interactions day after day. Why do you think series like "Big Brother" have different casts each season. Swapping casts is not something viable on Mars.Another issue is that people sent to mars would be selected for their level headed attitudes and ability to live with others in confined spaces. There would be little or no drama between settlers. Finally, a big part of series like "Big Brother" is the scheming and backstabbing to get other people kicked out of the house. That would not be present on Mars. It comes down to the same reason that there is not a reality series watching people on the space station; life in space is boring to watch. The series would last a few years until the ratings tank.