Interesting, I didn't know that!
Sounds like charging electric cars at night isn't such a bad idea!
The thing again is infrastructure and converting to DC from our already in place AC, it seems to me that this would be very costly at this point.
Rob
Global Warming?
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Interesting, I didn't know that!
Sounds like charging electric cars at night isn't such a bad idea!
The thing again is infrastructure and converting to DC from our already in place AC, it seems to me that this would be very costly at this point.
Rob
newbury
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Do you have any links for that statement?
I run 3 street lights and pay about $20/mo for each.
Why don't they drastically drop the cost of KW's at night?
I just did a little research to see how many homes have computers. Here's an older chart that ends in 2003, the latest figures I found, you may be able to do better, is 68% of American homes had computers in 2010.
Thinking back to when I started with computers, I got my first real computer in 1985 (I built a Sinclair before 85), a "FatMac". Not many people had computers back then. It wasn't cheap and it didn't do much! I bought it to do EDA (electronic design automation) and had to literally make my own circuit board foot prints. Needless to say, it didn't work well. Most of my real work back then was on HP hand held calculators, some of you will remember the 41CV, I used an 11C which was pretty remarkable. It could write programs and I did all my electronics calculations on it. Before then we used slide rules and I remember college physics classes where everyone had a Pickett slide rule. You couldn't take a final exam without one! That was in the sixties and seventies.
Printed circuit boards back then were flimsy, at best. The better boards were made by companies like HP and Tektronix but all the Tek scopes were CRT, pretty much hand wired until semiconductors kicked in. That changed everything. The spiral since LSI (large scale integration) has been remarkable.
I worked on the first government computers in the late 60's, today my handheld calculator has tens of thousands of times more memory and ability. That gov. computer crashed constantly and the company that supplied them to the government had a top technician on site at all times. By the way, it took a whole room!
The transistor has changed this world completely. Mail, flight, medicine, manufacture, etc. etc. are only possible because of the transistor. A country without transistor technology could not win a war, regardless how large or powerful it is. Communication would still be by telephone but no cell phones, smart phones, no web and no home computers. Communications would be very slow because it would still require a good percentage of mechanics. The test instruments I use today rival those of even twenty years ago at a fraction of the cost. I get to talk to the designers of chips, get data sheets and application notes that never could happen without the transistor. Period.
Now think of that technology and think of the future. Is there any better way to solve our energy problems? Is there any other technology that can exceed its potential?
So those of those of you who think that PV won't work, think again, it's our best answer.... and it's a good one!
In the next 5 years you will see renewables take over. Electric cars, PV, LED lights with over 99% efficiencies , etc. You will see PV rise in homes the way computers did. New homes without PV will be unthinkable. You will see a transformed grid with interties as the norm and not the exception.
Rob
Thinking back to when I started with computers, I got my first real computer in 1985 (I built a Sinclair before 85), a "FatMac". Not many people had computers back then. It wasn't cheap and it didn't do much! I bought it to do EDA (electronic design automation) and had to literally make my own circuit board foot prints. Needless to say, it didn't work well. Most of my real work back then was on HP hand held calculators, some of you will remember the 41CV, I used an 11C which was pretty remarkable. It could write programs and I did all my electronics calculations on it. Before then we used slide rules and I remember college physics classes where everyone had a Pickett slide rule. You couldn't take a final exam without one! That was in the sixties and seventies.
Printed circuit boards back then were flimsy, at best. The better boards were made by companies like HP and Tektronix but all the Tek scopes were CRT, pretty much hand wired until semiconductors kicked in. That changed everything. The spiral since LSI (large scale integration) has been remarkable.
I worked on the first government computers in the late 60's, today my handheld calculator has tens of thousands of times more memory and ability. That gov. computer crashed constantly and the company that supplied them to the government had a top technician on site at all times. By the way, it took a whole room!
The transistor has changed this world completely. Mail, flight, medicine, manufacture, etc. etc. are only possible because of the transistor. A country without transistor technology could not win a war, regardless how large or powerful it is. Communication would still be by telephone but no cell phones, smart phones, no web and no home computers. Communications would be very slow because it would still require a good percentage of mechanics. The test instruments I use today rival those of even twenty years ago at a fraction of the cost. I get to talk to the designers of chips, get data sheets and application notes that never could happen without the transistor. Period.
Now think of that technology and think of the future. Is there any better way to solve our energy problems? Is there any other technology that can exceed its potential?
So those of those of you who think that PV won't work, think again, it's our best answer.... and it's a good one!
In the next 5 years you will see renewables take over. Electric cars, PV, LED lights with over 99% efficiencies , etc. You will see PV rise in homes the way computers did. New homes without PV will be unthinkable. You will see a transformed grid with interties as the norm and not the exception.
Rob
Attachments
Sixty bucks a month is more than my total energy usage with no intertie advantage.
Can I ask why you run three street lights?
Rob
If global warming didn’t exist it would have to be created. As government bureaucracies balloon, balance of payments becomes their enemy.
Taxing the non-tangible is the answer.
The think tanks that are used are not tasked with the science only how to sell it. How many grants are available to disprove global warming?
Taxing the non-tangible is the answer.
The think tanks that are used are not tasked with the science only how to sell it. How many grants are available to disprove global warming?
vtsnowedin
Elite Member
I started college with a very fancy slide rule in a leather case on my belt. Required equipment along with the text books. I'm not as optimistic as you are. I don't think any technology ever exceeds it's potential. What it may exceed or fail to do is meet humans expectations of it's potential. It's potential is a fixed quantity set by the laws of physical reality and cannot change but our perception of it's value is much more fluid based on our human emotions which vary from unbridled optimism (Cold fusion, ) to certain near time end of the world (Peak oil theory).
Your enthusiasm for PV and other renewable energy solutions to our current problem are enthusiastic but may not prove out to be able to scale up to the levels required to pull our fat out out of the fire. Saying it's good a thousand times doesn't make it so.
Grants are not given to 'prove' or 'disprove', they are established to find facts that either support or refute a theory.
If you are a scientist and don't believe in CC than do the research to back up your opinion. There is no reason you can't get a grant.
You search for it, you're the one who made the statement!
mostly_gas
Super Member
you have yet to show any knowledge of CNC machining. Machines using Fanuc 7M/6M controls were still in use in the 2000's.
No not pertinent to previous discussion. Just going by what you said. Hint what does the F stand for in MTBF.
When did I say I designed electronics? Please show me why you asked that question doesn't look like you can read yet.
Not all controls will "bolt" to all CNC machining centers
Tell you what Rob, what would it take to machine 1 9/16 10,000psi gate valve to API specs. Assume 4340 prehardened forging 2" oversize in X,Y and Z dir. What is your tool list, and machining time how many setups across what machines. That is a real world application for CNC. I have programed Makino horizontals and verticals, Japax and Mitsubishi wire EDM, run manual ram EDM, machined carbon, aluminum,cast iron, steel, tool steel up to 61 Rc up to 4 simultaneous axis.
I don't need machines here still have full access to complete machine shop at work.
rsewill
Veteran Member
mostly_gas said:
Gents, no need to unzip. It doesn't make your argument.
I asked if you knew anything about electronics because you talked about electronics failing on an old CNC.
I don't have to know about a Fanuc 7M to know about CNC. The statement you objected to was my premise that electronics will have less failure rates than machines with moving parts. you gave me a machine designed 30 or 40 years ago and said it was "too expensive to replace the controls". It was too expensive to change the controls because the electronics is outdated and the company probably doesn't support a parts bank.
In my original statement I gave the example of a consumer cassette deck and modern MP3 players with no moving parts. Why did I give that example? Because, not like your reference, many people know about consumer electronics.
Basically what's going to last longer, a piston moving up and down in a cylinder or a transistor amplifying a signal?
Are you saying that a the piston moving up and down will out last the transistor amplifying? You're giving one example of an old machine and saying, "see you're wrong, machines last longer than electronics." Do we know how many mechanical parts had to be changed? What the mechanical failures were on the machine? Its history?
So I asked you what you knew about modern electronics. why do you think computer hard drives are going solid state? Because mechanical hard drives wear out and crash.
So again, what do you think will last longer, a piston moving up and down in a cylinder or a transistor amplifying a signal? (taking into account your lack of knowledge in the field of electronics.)
Hint: I have electronic clocks from over 40 years ago that still work, they run 24 hours a day. Got any ICE engines that have been running trouble free 24 hours a day for the last 40 or 50 years?
Windmills need regular maintenance, PV modules just keep putting out power. Get it?
Rob
Renewables are starting to look pretty good!
"(NaturalNews) Japanese officials are currently engaging in talks with Russian diplomats about where tens of millions of Japanese refugees might relocate in the very-likely event that the Fukushima Daiichi nuclear facility's Reactor 4 completely collapses. According to a recent report by EUTimes.net, Japanese authorities have indicated that as many as 40 million Japanese people are in "extreme danger" of radiation poisoning, and many eastern cities, including Tokyo, may have to be evacuated in the next few weeks or months to avoid extreme radiation poisoning."
Learn more: Forty million Japanese in 'extreme danger' of life-threatening radiation poisoning, mass evacuations likely
"(NaturalNews) Japanese officials are currently engaging in talks with Russian diplomats about where tens of millions of Japanese refugees might relocate in the very-likely event that the Fukushima Daiichi nuclear facility's Reactor 4 completely collapses. According to a recent report by EUTimes.net, Japanese authorities have indicated that as many as 40 million Japanese people are in "extreme danger" of radiation poisoning, and many eastern cities, including Tokyo, may have to be evacuated in the next few weeks or months to avoid extreme radiation poisoning."
Learn more: Forty million Japanese in 'extreme danger' of life-threatening radiation poisoning, mass evacuations likely
mostly_gas
Super Member
Here is what you said in post #1124
DCC CMM's just replace the CPU and reinstall software. Replacing controls on MC100 when Fanuc and Makino won't tell you everything you need to know, not so easy.
To reinforce my point, you said "never out out do" I have seen mechanical devices "out do".
I added the bold. See any qualifiers? I needed to know what was going on when a machine was down so I knew when it was a control problem, plc problem spindle issue, spindles and controls were the worst for down time, it took a while to pull a spindle. There was some research to replace controls, but the powers that be would not consider anything without references ie be the guys first install. Machines were all still in factory spec performance wise and not suffering excessive downtime due to mechanical issues.
DCC CMM's just replace the CPU and reinstall software. Replacing controls on MC100 when Fanuc and Makino won't tell you everything you need to know, not so easy.
To reinforce my point, you said "never out out do" I have seen mechanical devices "out do".
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Redneck in training
Elite Member
I work for a company that manufactures control systems for compressors and turbines. Since we keep track about repairs there is pretty good statistic about reliability of our devices. We see that about first 12 years there were very few failures, many of them due to environmental issues such as aggressive gasses, salt, conductive dust etc.
Our devices are made only from components with extended temperature range (mil specs) nevertheless we see increased occurrence of failures after about 12-15 years of constant power on. Usually electrolytic capacitors are the culprit. Needless to say that the percentage of failed devices is still in fraction percent range even after 15 years of power on.
The compressor, steam or gas turbine will be overhauled about three or four times times during the life of the control system. The control system doesn't require much, if any, maintenance during this time.
The control systems I am talking about were made from components (15 years ago) that were not even close to the components we make our systems from today. New components are way more stable. In example new control systems are calibrated in the factory for life of the device.
So I agree with Rob that electronics, if designed right, can outlast mechanical devices several times over. There might be exceptions like in everything in life.
Our devices are made only from components with extended temperature range (mil specs) nevertheless we see increased occurrence of failures after about 12-15 years of constant power on. Usually electrolytic capacitors are the culprit. Needless to say that the percentage of failed devices is still in fraction percent range even after 15 years of power on.
The compressor, steam or gas turbine will be overhauled about three or four times times during the life of the control system. The control system doesn't require much, if any, maintenance during this time.
The control systems I am talking about were made from components (15 years ago) that were not even close to the components we make our systems from today. New components are way more stable. In example new control systems are calibrated in the factory for life of the device.
So I agree with Rob that electronics, if designed right, can outlast mechanical devices several times over. There might be exceptions like in everything in life.
Forty million Japanese in 'extreme danger' of life-threatening radiation poisoning, mass evacuations likely.
This is a hoax.
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