Do we have any supernova detectors that use neutrinos instead of gamma rays, I seriously don't know? I thought usually we first detect the GRB and then we go and point stuff at that area of the sky. If this works out to that neutrinos do indeed travel faster than light then we might want to start building detectors for neutrino bursts instead of gamma rays as this would let us position telescopes and other interments to watch the GRB to get data at the moment the gamma rays start to arrive.
Turbines can be efficient at or near sea level, (look at those combined cycle gas turbines in a power plant), but if you are designing something that will normally operate at 30,000 to 40,000 feet then it makes sense that that is where you would design it to run most efficiently. Have you ever driven a car up to the top of Pikes Peak or Mt. Evans in Colorado, they don't run very well and if you have an older one with a carburetor then you probably needed to get out and adjust it.
You are correct in that turbines were tried in cars. They never made it out of a prototype phase and it was Chrysler that made them. At the time they did have problems with noise but it was the noise they made not the amount (have you ever heard an old American V8 with lumpy cams) but this wasn't something killed them. Initially when they were designed they had to use new expensive/exotic materials (titanium and some early super-alloys ) to handle the temps. They would run on any combustible liquid, but did take some time to warm up. The most problematic issue was the throttle lag which no one likes since when I push down on the pedal I want to go now not is a second, this is still a problem in the world of turbo chargers. If I remember correctly there was a Modern Marvels episode on the history channel that featured one which is where some of this info comes from. Despite the current perception (probably deserved) that Chrysler Corp. vehicles are junk there was a time when they were known as very high quality, very engineering oriented car company.
The technology that was used in those early Chrysler turbine cars is the direct ancestor of the turbine engine in the M1A1 Abrams tanks that our military is using.
JetA and diesel are more similar than diesel and gasoline so I don't think it would take much modification. The great thing about diesels is that they can run on almost anything combustible much like turbines will.
I thought you had to first break into the Louvre in some overly convoluted scheme and then you would be stuck either sitting on it until the statute of limitations runs out, or selling it on the black market. I would say that people would try and sell actual pieces of it on eBay as you can find almost anything on there and it does reach a broad audience.
So I am not the only one who has noticed this. A few years back the Walmart near my house was actually the cheapest place to buy automotive supplies like oil, filters, and other fluids and actually carried a fairly large selection (and no I don't mean the Walmart brand crap but the actual good stuff like Mobile 1 or Valvoline). Then their prices started to creep up and selection decreased so now it is substantially cheaper to purchase the same things at fleet farm (a local retailer and basically like a Tractor Supply company store if you have ever been in one). I also still hear people state that Walmart is the cheapest place to buy out door goods like ammo and firearms and I have never found that to be the case. The selection is limited at best (10 to 15 calibers) and limited choices of ammo that they have while fleet farm is cheaper and has a shelf of center fire rifle and pistol ammo 24 feet long and 4 feet high (the other side has shotgun ammo) with all different calibers, weights, styles, and manufactures. At best Walmart's prices are comparable to Gander Mountain but Walmart is still cheaper than Dick's and Cabela's although every other place has a much better selection
Concerning efficiency the best reciprocating piston engines get just over 50% but those are large 2 stroke marine diesels. Large combined cycle gas turbine can get just of 60% efficiency so they are more efficient than a reciprocating piston engine but you are dealing with something the size of a building. The marine diesels are also the size of a building too and will have bores and strokes measured in meters (typically in the range of 1-2 meters).
Unless I am driving a diesel I sure hope my fuel isn't detonating (exploding) in the combustion chamber. I much prefer the very rapid deflagration that should be happening if I am driving a non diesel engine.
Taking the average mileage of vehicles (about 150,000 miles) and the average miles driven a year (12,000 miles) gives an average vehicle age of about 12.5 years. This is a vast improvement over vehicles of a few decades back when a car really was used up after about 60,000 miles. Could we build vehicles that had lifespans of decades and mileages in the multiple hundreds of thousands yes, and I would say that we currently do. I find that in general the longevity of a vehicle is more dependent on the care given to it than who made it. Examples would be my daily driver a 97 BMW 540i with 222,000 miles on it, or my new to me hunting vehicle a 96 Jeep Cherokee with 368,000 miles on it (someone loved this truck). Both of these vehicles run basically like new, don't burn oil, don't have strange smells, or have strange noises from the engine. Now for comparison there are my mother and step father's vehicles a 2002 Chevy Caviler and a 2007 Chevy Impala. The Caviler has just over 100,000 on it and may or may not start, has bad brakes, bad synchros in the transmission, and may or may not stay running when driving along with a lot of rust. The Impala still runs but already is developing rust problems and both vehicles burn a lot of oil (it is like they are fogging for mosquitoes). The main difference is the maintenance given to these vehicles, mine get all of the standard service at or before it is required, my mom and step dad's vehicles get it eventually, they have gone 10,000-15,000 miles between oil changes (they use standard 3000 mile interval mineral oil not extended drain synthetic) and have run vehicles that are 2 or 3 quarts low on oil.
That is true, I had forgotten about the exemption for gains of $250,000 or less, but then I don't plan on selling my house. I don't know if there are some locations in the US that have a property tax that covers all your worldly possessions but that would cover stocks. I think that it would be possible for government at various levels to levy a tax on all your property but their might actually be an uprising then.
I wonder if the stockholders could sue for mismanagement over something like this?
Probably not. Now to jump off the deep end they could have been considered to be acting in the best interest of their stock holders as they were blocking e-mails about a protest of wall street.
Do people who bought a $30,000 house in 1962 have to pay taxes on the $200,000 'more' it is worth now?
Yes they do but not in the form of a capital gains tax, that is only levied when they sell the house same as stocks and other assets. The tax they pay is their property tax and that is based off of the houses current valuation. Typically this is in the range of 1% to 2% of the value of the house and is paid each and every year and if you don't pay it then the city or county (depends on who you pay your tax to) can take your property.
Just try again when they are older. My dad tried to get me to watch American Graffiti and Cool Hand Luke and I hated them when I was younger. I still don't like American Graffiti but am able to respect it for what it is. I do like Cool Hand Luke but my wife just hates it because as she puts it "It is just a story and there isn't any point".
After all, the US federal reserve is causing money destruction that is causing the federal reserve notes to lose over 10% of value per year.
So you mean to tell me that my junk 88 Ford Bronco II with 253,XXX miles on it is appreciating against the dollar instead of decreasing in value. Please wizzard of the finance tell me where I can invest my money so that I will get an inflation beating return since obviously if I owned any TIPS I should be seeing an interest rate above 0.25% for a 3 month bond, or a 1 year treasure bill with a rate above 0.102%
Again it is convenience and money those were my points. Unfortunately I haven't seen a system setup where the bridge between the SCADA network and the corporate network is through the historian that has been fully secured and firewalled on either side to limit any access.
An insider would probably be able to mess with the system and control remote equipment, why smash some computers when you could melt a multi-million dollar generator, or break a large dam, blow up some high voltage transformers, etc... About the only way to deal with an insider is to make sure you hire good people and keep them happy. They do frequent background checks and some are quite detailed, get a background check to work on the system for the Israelis, have frequent trainings and other stuff. I probably get 2-3 background checks a year so that if I am needed I can work on various customer projects. I also do several security trainings each quarter, one for each company so I can continue to work on their systems. The insider is a huge thread and the systems I work on there has been a major push to limit access as much a possible. My company is starting to introduce some very fine grained user access to limit what one can do and see.
Mostly it is a cost thing, there are the system admins and the system owners/users. The admins would much prefer to have the systems isolated and air gaped the problem is that the management and users don't care since that costs more money since now they are buying multiple machines for each user, also it is less convenient for each user since they are going between 2 machines. Another benefit of having them have a path to the internet is that it allows remote support. Congrats on your former company for doing the right thing. Also I wouldn't call a utility less critical as a SCADA system at a power company controls a whole host of things probably the least dangerous of which would be high voltage breakers, add into that generation controls, dam controls, phase controls and other thing I don't know about and someone with malicious intent could cause sever damage that would take at least a few months to repair. I actually work in the security area at my company which makes SCADA systems and managements poor idea of having a path to the internet sure makes a lot of work for me.
your forget this system was developed by bureaucrats not engineers so they want to create a comprehensive list instead of a set of choices that will give them complete coverage. I have done similar things with customers, they deliver a comprehensive list of statuses of a system that is a tome when a short set of attributes and values and how to compute each final status is what is what was actually implemented. Not only is this more elegant but can allow for a much more flexible system and they are now shocked at how easy it is to configure something if they found out that their original comprehensive list was wrong or incomplete. It just makes for an over more robust system.
I have met people like this and they are appalled when they come over to my house and I let my oldest (recently turned 3) go and play outside in the dirt patch that use to be the garden (didn't have time this year to plan with a newborn), or that I let him also "help" me fix vehicles. Frequently these are also the helmet crowd who insist that nothing bad ever happen to their child and that they be protected from even the slightest thing that may cause some discomfort. My three year old did a face plant off the swings at the park this year when he was learning to swing on the real swings. He got the wind knocked out of him for the first time and a mouth full of sand. He panicked from having the wind knocked out of him so I picked him up and told him he was ok and he got over it and then wanted to get back on the swings. I got some of the dirtiest looks from some of the other parents since he is probably a bit small to be on the real swings but he wants to do what the big kids are doing and hates the bucket swings. He also likes to chase the stupid Canadian geese in the park and knows what to do when one comes at him
Personally I just like to unplug from the world. Last year my boss was shocked that he would be unable to get a hold of me in case I was needed while hunting and didn't believe me that I would be unable to get a cell signal, have electrical power, or have an internet connection. I had to check in with him one day while on vacation and that was a half hour drive into the nearest town to where I could get a cell signal and ended up having to drive back to the cities so I could deal with emergencies at work (they really weren't my former boss was just a dink). Maybe I should have my boss have to find me if they want me to come back to work while on vacation as it would probably take an areal survey, a trained tracker, and a pack of dogs. When asked where I was going I told him the north woods of Minnesota, somewhere between Zipple Bay and Grand Portage and possibly as far south as McGregor as this was the best description of where we would be. The places we stay and hunt are out in the woods as we tent camp during deer season and the vehicles are left on the nearest road. We go back to the vehicles to eat each day so we don't have to pack in all that gear and food, but camp much closer to where we are going to hunt. It is amazing how refreshed I come back, low stress, more energy
Also don't let them know that they can actually hear the spark plugs if they tune to an AM signal that isn't used in your area, or even if you have it tuned to a station with a weak signal. If you have really worn spark plugs you can sometimes hear them on AM stations with a strong signal.
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Do we have any supernova detectors that use neutrinos instead of gamma rays, I seriously don't know? I thought usually we first detect the GRB and then we go and point stuff at that area of the sky. If this works out to that neutrinos do indeed travel faster than light then we might want to start building detectors for neutrino bursts instead of gamma rays as this would let us position telescopes and other interments to watch the GRB to get data at the moment the gamma rays start to arrive.
Turbines can be efficient at or near sea level, (look at those combined cycle gas turbines in a power plant), but if you are designing something that will normally operate at 30,000 to 40,000 feet then it makes sense that that is where you would design it to run most efficiently. Have you ever driven a car up to the top of Pikes Peak or Mt. Evans in Colorado, they don't run very well and if you have an older one with a carburetor then you probably needed to get out and adjust it.
You are correct in that turbines were tried in cars. They never made it out of a prototype phase and it was Chrysler that made them. At the time they did have problems with noise but it was the noise they made not the amount (have you ever heard an old American V8 with lumpy cams) but this wasn't something killed them. Initially when they were designed they had to use new expensive/exotic materials (titanium and some early super-alloys ) to handle the temps. They would run on any combustible liquid, but did take some time to warm up. The most problematic issue was the throttle lag which no one likes since when I push down on the pedal I want to go now not is a second, this is still a problem in the world of turbo chargers. If I remember correctly there was a Modern Marvels episode on the history channel that featured one which is where some of this info comes from. Despite the current perception (probably deserved) that Chrysler Corp. vehicles are junk there was a time when they were known as very high quality, very engineering oriented car company.
The technology that was used in those early Chrysler turbine cars is the direct ancestor of the turbine engine in the M1A1 Abrams tanks that our military is using.
JetA and diesel are more similar than diesel and gasoline so I don't think it would take much modification. The great thing about diesels is that they can run on almost anything combustible much like turbines will.
I thought you had to first break into the Louvre in some overly convoluted scheme and then you would be stuck either sitting on it until the statute of limitations runs out, or selling it on the black market. I would say that people would try and sell actual pieces of it on eBay as you can find almost anything on there and it does reach a broad audience.
So I am not the only one who has noticed this. A few years back the Walmart near my house was actually the cheapest place to buy automotive supplies like oil, filters, and other fluids and actually carried a fairly large selection (and no I don't mean the Walmart brand crap but the actual good stuff like Mobile 1 or Valvoline). Then their prices started to creep up and selection decreased so now it is substantially cheaper to purchase the same things at fleet farm (a local retailer and basically like a Tractor Supply company store if you have ever been in one). I also still hear people state that Walmart is the cheapest place to buy out door goods like ammo and firearms and I have never found that to be the case. The selection is limited at best (10 to 15 calibers) and limited choices of ammo that they have while fleet farm is cheaper and has a shelf of center fire rifle and pistol ammo 24 feet long and 4 feet high (the other side has shotgun ammo) with all different calibers, weights, styles, and manufactures. At best Walmart's prices are comparable to Gander Mountain but Walmart is still cheaper than Dick's and Cabela's although every other place has a much better selection
Concerning efficiency the best reciprocating piston engines get just over 50% but those are large 2 stroke marine diesels. Large combined cycle gas turbine can get just of 60% efficiency so they are more efficient than a reciprocating piston engine but you are dealing with something the size of a building. The marine diesels are also the size of a building too and will have bores and strokes measured in meters (typically in the range of 1-2 meters).
Unless I am driving a diesel I sure hope my fuel isn't detonating (exploding) in the combustion chamber. I much prefer the very rapid deflagration that should be happening if I am driving a non diesel engine.
Taking the average mileage of vehicles (about 150,000 miles) and the average miles driven a year (12,000 miles) gives an average vehicle age of about 12.5 years. This is a vast improvement over vehicles of a few decades back when a car really was used up after about 60,000 miles. Could we build vehicles that had lifespans of decades and mileages in the multiple hundreds of thousands yes, and I would say that we currently do. I find that in general the longevity of a vehicle is more dependent on the care given to it than who made it. Examples would be my daily driver a 97 BMW 540i with 222,000 miles on it, or my new to me hunting vehicle a 96 Jeep Cherokee with 368,000 miles on it (someone loved this truck). Both of these vehicles run basically like new, don't burn oil, don't have strange smells, or have strange noises from the engine. Now for comparison there are my mother and step father's vehicles a 2002 Chevy Caviler and a 2007 Chevy Impala. The Caviler has just over 100,000 on it and may or may not start, has bad brakes, bad synchros in the transmission, and may or may not stay running when driving along with a lot of rust. The Impala still runs but already is developing rust problems and both vehicles burn a lot of oil (it is like they are fogging for mosquitoes). The main difference is the maintenance given to these vehicles, mine get all of the standard service at or before it is required, my mom and step dad's vehicles get it eventually, they have gone 10,000-15,000 miles between oil changes (they use standard 3000 mile interval mineral oil not extended drain synthetic) and have run vehicles that are 2 or 3 quarts low on oil.
That is true, I had forgotten about the exemption for gains of $250,000 or less, but then I don't plan on selling my house. I don't know if there are some locations in the US that have a property tax that covers all your worldly possessions but that would cover stocks. I think that it would be possible for government at various levels to levy a tax on all your property but their might actually be an uprising then.
I wonder if the stockholders could sue for mismanagement over something like this?
Probably not. Now to jump off the deep end they could have been considered to be acting in the best interest of their stock holders as they were blocking e-mails about a protest of wall street.
Do people who bought a $30,000 house in 1962 have to pay taxes on the $200,000 'more' it is worth now?
Yes they do but not in the form of a capital gains tax, that is only levied when they sell the house same as stocks and other assets. The tax they pay is their property tax and that is based off of the houses current valuation. Typically this is in the range of 1% to 2% of the value of the house and is paid each and every year and if you don't pay it then the city or county (depends on who you pay your tax to) can take your property.
Just try again when they are older. My dad tried to get me to watch American Graffiti and Cool Hand Luke and I hated them when I was younger. I still don't like American Graffiti but am able to respect it for what it is. I do like Cool Hand Luke but my wife just hates it because as she puts it "It is just a story and there isn't any point".
After all, the US federal reserve is causing money destruction that is causing the federal reserve notes to lose over 10% of value per year.
So you mean to tell me that my junk 88 Ford Bronco II with 253,XXX miles on it is appreciating against the dollar instead of decreasing in value. Please wizzard of the finance tell me where I can invest my money so that I will get an inflation beating return since obviously if I owned any TIPS I should be seeing an interest rate above 0.25% for a 3 month bond, or a 1 year treasure bill with a rate above 0.102%
Try breathing pure oxygen and you might think differently, or pure nitrogen.
Again it is convenience and money those were my points. Unfortunately I haven't seen a system setup where the bridge between the SCADA network and the corporate network is through the historian that has been fully secured and firewalled on either side to limit any access.
An insider would probably be able to mess with the system and control remote equipment, why smash some computers when you could melt a multi-million dollar generator, or break a large dam, blow up some high voltage transformers, etc... About the only way to deal with an insider is to make sure you hire good people and keep them happy. They do frequent background checks and some are quite detailed, get a background check to work on the system for the Israelis, have frequent trainings and other stuff. I probably get 2-3 background checks a year so that if I am needed I can work on various customer projects. I also do several security trainings each quarter, one for each company so I can continue to work on their systems. The insider is a huge thread and the systems I work on there has been a major push to limit access as much a possible. My company is starting to introduce some very fine grained user access to limit what one can do and see.
Mostly it is a cost thing, there are the system admins and the system owners/users. The admins would much prefer to have the systems isolated and air gaped the problem is that the management and users don't care since that costs more money since now they are buying multiple machines for each user, also it is less convenient for each user since they are going between 2 machines. Another benefit of having them have a path to the internet is that it allows remote support. Congrats on your former company for doing the right thing. Also I wouldn't call a utility less critical as a SCADA system at a power company controls a whole host of things probably the least dangerous of which would be high voltage breakers, add into that generation controls, dam controls, phase controls and other thing I don't know about and someone with malicious intent could cause sever damage that would take at least a few months to repair. I actually work in the security area at my company which makes SCADA systems and managements poor idea of having a path to the internet sure makes a lot of work for me.
When I was younger, we would occasionally catch them; the problem was not so much the catching but the "what do we do now?"
Our solution was usually to club them over the head with the canoe paddle or boat oar.
your forget this system was developed by bureaucrats not engineers so they want to create a comprehensive list instead of a set of choices that will give them complete coverage. I have done similar things with customers, they deliver a comprehensive list of statuses of a system that is a tome when a short set of attributes and values and how to compute each final status is what is what was actually implemented. Not only is this more elegant but can allow for a much more flexible system and they are now shocked at how easy it is to configure something if they found out that their original comprehensive list was wrong or incomplete. It just makes for an over more robust system.
I take it you have never been to a Catholic mass before. They are always knelling so I wouldn't blame some one for wanting to wear some knee pads.
No some MIT students did a study of various tin foil hats and discovered that they may actually make the problem worse.
I have met people like this and they are appalled when they come over to my house and I let my oldest (recently turned 3) go and play outside in the dirt patch that use to be the garden (didn't have time this year to plan with a newborn), or that I let him also "help" me fix vehicles. Frequently these are also the helmet crowd who insist that nothing bad ever happen to their child and that they be protected from even the slightest thing that may cause some discomfort. My three year old did a face plant off the swings at the park this year when he was learning to swing on the real swings. He got the wind knocked out of him for the first time and a mouth full of sand. He panicked from having the wind knocked out of him so I picked him up and told him he was ok and he got over it and then wanted to get back on the swings. I got some of the dirtiest looks from some of the other parents since he is probably a bit small to be on the real swings but he wants to do what the big kids are doing and hates the bucket swings. He also likes to chase the stupid Canadian geese in the park and knows what to do when one comes at him
Personally I just like to unplug from the world. Last year my boss was shocked that he would be unable to get a hold of me in case I was needed while hunting and didn't believe me that I would be unable to get a cell signal, have electrical power, or have an internet connection. I had to check in with him one day while on vacation and that was a half hour drive into the nearest town to where I could get a cell signal and ended up having to drive back to the cities so I could deal with emergencies at work (they really weren't my former boss was just a dink). Maybe I should have my boss have to find me if they want me to come back to work while on vacation as it would probably take an areal survey, a trained tracker, and a pack of dogs. When asked where I was going I told him the north woods of Minnesota, somewhere between Zipple Bay and Grand Portage and possibly as far south as McGregor as this was the best description of where we would be. The places we stay and hunt are out in the woods as we tent camp during deer season and the vehicles are left on the nearest road. We go back to the vehicles to eat each day so we don't have to pack in all that gear and food, but camp much closer to where we are going to hunt. It is amazing how refreshed I come back, low stress, more energy
Also don't let them know that they can actually hear the spark plugs if they tune to an AM signal that isn't used in your area, or even if you have it tuned to a station with a weak signal. If you have really worn spark plugs you can sometimes hear them on AM stations with a strong signal.