There was also all the different tape chemistry you could use. The pinnacle was the "metal tape". There was also ferric-oxide and chrome-dioxide.
The higher end cassette tapes could be indistinguishable from a reel to reel running ferric-oxide. But they degraded far faster due to wear and tear. The bias stuff was also really inadequate on lower end cassette decks.
The funny thing is that 8 tracks had higher fidelity than cassettes. But the form factor was limited by it's size and need to reverse tape direction usually breaking songs in two.
Don't get me started on tape speed.... which is a whole other fidelity/wear and tear issue.
There's no point in sending warm wet bodies to Mars: robots prove time and time again that they do a much better job than human beings could ever hope to do, faster, safer and a lot cheaper. And in a sense, robots are humanity's children: we created them, and I consider them part of our species. When a robot explores Mars for 15 years, it's humanity that has maintained a presence on Mars and studied there for 15 years.
I've been much more fascinated by what's been going on with space probes of all kinds for the past few decades than with the lunar stunts of the late sixties, which where rich in emotion but rather poor in science for the money.
Give me a space suit and a pick ax and I'll show you how much better a human is than a machine.
Give me ten minutes and I'll tell you what is in that sedimentary rock. And if I'm right- you'll also witness the first dance performed on Mars.
What are you saying exactly? Which field do you believe he was going to leverage if not EM?
And another one who doesn't actually read the patent, my whole (admitedly partially bungled) post, or even do a basic google search on what Tesla was proposing. You're not alone though. Everyone nowadays just hears "wireless electrical transmission" and simply assumes this has just gotta mean by an electric field (a la mutual inductance) or by an electromagnetic field (a la radio).
To answer your question: Which field did he propose? No field!. At least, no more so by a field than electrons moving through a wire are using a "field" to directly conduct electricity. Patent 645,576 (I'm not going to link it again here since you didn't bother to click on it to read it before) describes a "System of Transmission of Electrical Energy" directly through the air. Or, since when you hear the word "transmission" you understand "radio transmission", how about if we use rename his patent "System of Conduction of Electrical Energy". He was going to transmit... err... conduct it directly through the air. Like a thunderstorm does. Like a (wait for it) "tesla coil" does. By arcing it up into the sky.
Tesla knew that rarefying air made it far more able to conduct electricity, and he knew that the atmosphere thinned as you proceeded up. So, he reasoned, if you broke down the ionization barrier from the surface and arced the electricity far enough up, that once up there it would continue to conduct fairly easily laterally. Tesla proposes in this patent to use giant transformers to force "electrical impulses of sufficiently-high electromotive force to render elevated air strata conducting, causing, thereby current impulses to pass, by conduction, through the air strata". He knew the voltages would be massive - he thought 20-50 megavolts. Where he got those numbers we don't know. But what we do know is that Tesla did more experimentation on what voltages at what frequencies it takes to arc electricity over large distances than anyone then or since.
Ok... so not EM....
Ah yes.... the skies of the world eternally lit by thousands of arcs creating massive amounts of ozone, with no controlled way to actually deliver the arc since it could arc to anything which was a better path, or randomly to ground. Radio service permanently made useless by brilliant arcs blasting EM. Electronics randomly blown whenever the arc comes close to to the earth.
Tesla was brilliant. But he had this one wrong.
How the hell do you control the arc when every wet tree along the route is a better path? How can you predetermine a path through the atmosphere when we can't even predict when or where lightning will hit?
What I'm saying was advanced electrical theory in Tesla's time- but it beyond basic stuff now.
My take on the whole thing is that he was likely over-optimistic in his ability to fathom and harness a system as vast as earth's atmosphere (Ham radio guys could probably tell him a thing or two). Then again this may be a case where you never really know until you try. What Tesla got wrong was that there is no way in such a system to extract payments from users, hence his capitalist backers bailed out before Tesla could demonstrate the soundness of his conjectures.
BTW, yes I am a physicist.
Well I'm a ham radio guy... and a systems engineer.
Tesla would not have created any "exotic" form of energy from that tower- just EM. And we know now that the propagation of radio waves happen in different layers of the ionosphere- not the magnetosphere. Aside from the drastic loss at distance, which would make the system useless, even if you found a way to transmit that energy without loss you would never be able to predict where it would become available. Propagation is always shifting and dependent on what the RF frequency is and what part of the 11 year sunspot cycle we are in.
In fact I'm not aware of any RF emissions which interact with the magnetosphere outside of warping of an antenna pattern (the shape of the EM field created by an antenna) when a signal goes through the magnetosphere. But considering amateur experiments with earth-moon-earth communications there does't seem to be a measurable impact which can be measured. No special preparations were made for that during the Apollo missions either- except to have some kind of matching polarization (circular).
We also do not see any effects in amateur satellite communications.
There's also lightning. There can be lightning 1800 miles away. I can hear it on my equipment. But it never arrives at a destructive (or useful) level. Which would be an argument against some special property of the magnetosphere to transmit end user available power. The only time we see a strong EM field from lightning interact with our equipment is when an EM field collapses from a close strike which overwhelms our ability to shunt it to ground. In those cases our equipment is destroyed. But it's a local occurrence. Lightning strikes in Illinois do not cause problems in Michigan. Lightning strikes 300 meters away are dangerous.
Then... there is aurora propagation. When charged particles from the solar wind dip down into the upper layers of the atmosphere creating ionization. Even in that case the losses involved are staggering.
So in this person's opinion... Tesla was wrong and would never have achieved much beyond a pretty impressive spark gap transmitter.
As you grow older the lack of a degree starts to cause problems. I'm a systems engineer who has been employed by big computer makers, I've been an IT director, and a consultant. I have programming credits.
I'm 53. Not planning on retiring ever....
Sadly... many of the companies I've interviewed with will not look at me without a degree. Also, in my experience, I had to be better than my peers who had the computer science degree.
That being said- if I can choose only one I'd rather be competent than educated. Nothing wrong with education. But a significant number of people who have the degree are entitled incompetents moving from company to company before they get found out.
The incompetents do however make me a lot of money.
Most of my career was built on solving problems other people could not. That's fine. I like the puzzle. I can consume massive amounts of information in a short period of time. Then I know what to do with that information.
I"m not sure college can prepare you for that unless it's already in your nature.
If I was willing to take a couple of years off and finish my degree, it would make things easier. But then I'd have to rebuild my client base.
Flip a coin. But without a degree a person had better be better really good at the job, willing to start at the bottom, and willing to budget between decidedly large contract paychecks.
It's not the speed of the internet that is the problem- it's humans adapting to it.
Whether it's behavior or security practices it is all about adaptation. Adding "friction" is corporate weasel terminology for "I'm an MBA and can't understand this".
There's nothing like getting a blank stare from an MBA, who is your boss, who either refuses, or cannot, understand technology or it's social consequences.
I'm fairly sure- though I can't find the reference....
This is redundant research. The creation of this sort of fiber was first done in the USA around 2000. It's the manufacturing process which has not scaled up against economics. We don't know how to make vast quantities. Yet.
Also as I remember some resources were pulled from carbon based nano-fibers to research a diamond based product.
In both cases I mention above one can create much cheaper antennas in a conformal mode.
And they won't work....
You can't slap a metal "backplane" on a sprayed on 2d antenna and get anything other than a ridiculous standing wave ratio. Also, the electronics used in a conformal antennas to create directional beamforming are prohibitively expensive and even classified. "Backplanes" do not create directionality.
The next time you Wikipedia dive for a comment- make sure you read the whole article.
This might make thinner antennas, but they won't be any smaller.
They will still need a plastic support structure, will still need to be the same physical wavelength, and will still need to be mounted away from other metal.
Sadly, it won't change the laws of physics.
You got that right.... Though electrical length can be fudged using Mandelbrot forms. Though it's still not the most efficient antenna.
Most antennas in cell phones are considered "efficient dummy loads". Ever since they went internal there are all kinds of polarization/gain issues. At least with the old semi-vertically polarized antennas you didn't drop 20db of gain by turning your head.
And you are right... spray paint an antenna onto a piece of metal... and the metal will couple distorting the radiation pattern.
The whole technology is rife with pitfalls. But some MBA will try and make it work leading to more crappy products...
Well...Wikileaks is not exactly an equal opportunity leaker. In retrospect there's no higher morality to it's actions or the "materials" released.
The value is in creating chaos. In the Clinton case, in order to believe there was substantive criminal activity, one must believe that the whole of the FBI and intelligence community were in cahoots with Clinton.
It's not like other true leaks like Snowden or the Pentagon Papers. Those were acts of conscience which led to at least some change.
Even in the McCarthy era the real nuance in his actions was not apparent until years later. If you don't get it now- give it ten years.
You are bashing RHEL- but ran a Fedora shop? Fedora is not an Enterprise OS. It's RHEL's beta.
Do you have any direct experience running a RHEL shop? I do- and I could not disagree with you more.
This isn't a knock against Debian. I use it. It's good. But in a corporate environment RHEL is a first pick since it's stable, security patches are backported, and an admin can bring in out of stream software sets through yum repos or compiling from source.
Add to that the fact that you can have a box that has been in-place upgraded since RHEL 3 all the way to 7 with no issues other than reconfiguring the box because of out of date conf files.
That's stability.
Now if you want to address being "current"... make sure you aren't talking about "featuritus". Sure you might want a more recent version of Apache. You can easily do that. However, most of the criticisms regarding "old packages" are really nit picking since most issues are solved through backports.
Fedora on the other hand- I only use that for hobbyist purposes.
That aside... this new owner will just accentuate the problem areas of Eve that kept it from truly meeting it's potential.
As it is, it's already a griefing sandbox with little wiggle room for anything except PVP and/or massive corporate/alliance industry or fleet ops. When it could be far more balanced and appeal to a larger player base.
Pushing it further into "gang warfare" style griefing will eventually make the player base smaller.
I stopped playing in 2016. So I played for 12 years. In the old days you could strike out into deep space and have an adventure. These days you can't do that without a full armada or a covert ops frigate. Forget being an industrialist or a trader. Without military backing you can do nothing.
Eve online almost achieved greatness. The hope always was that they would expand space so it was really big... so you could get lost in it.
What a wonderful, unfiltered, nugget of truth put forth by that spokesperson. Refreshing.
You always bleed some talent after a startup has some success. People move on for cushier positions because startup employment is hard work.
Apple went through something similar in the mid to late 90s. The people who stayed were said to "bleed six colors". The return of Jobs put and end to that:)
Nothing new here- except someone told the truth. Wonderful!
Slashdot Mirror
The dude could have been content being a hero in the enthusiast/IT community. He could have been remembered long after he was gone.
Now... he's killing the baby for a cash payout. He'll be remembered for this.
But who cares... it's all about the big bucks.
One more time, "Embrace Extend"
.....Extinguish.....
These days, murdering the innocent is mundane police business, and so is hiding the fact.
These days?
You are obviously a person with bad memory or in the flower of your youth.
Today's police violence/misconduct pales in comparison to the sheer majesty of brazen nefarious activities found in the 60s, 70s, and 80s.
There was also all the different tape chemistry you could use. The pinnacle was the "metal tape". There was also ferric-oxide and chrome-dioxide.
The higher end cassette tapes could be indistinguishable from a reel to reel running ferric-oxide. But they degraded far faster due to wear and tear. The bias stuff was also really inadequate on lower end cassette decks.
The funny thing is that 8 tracks had higher fidelity than cassettes. But the form factor was limited by it's size and need to reverse tape direction usually breaking songs in two.
Don't get me started on tape speed.... which is a whole other fidelity/wear and tear issue.
Robots.
There's no point in sending warm wet bodies to Mars: robots prove time and time again that they do a much better job than human beings could ever hope to do, faster, safer and a lot cheaper. And in a sense, robots are humanity's children: we created them, and I consider them part of our species. When a robot explores Mars for 15 years, it's humanity that has maintained a presence on Mars and studied there for 15 years.
I've been much more fascinated by what's been going on with space probes of all kinds for the past few decades than with the lunar stunts of the late sixties, which where rich in emotion but rather poor in science for the money.
Give me a space suit and a pick ax and I'll show you how much better a human is than a machine.
Give me ten minutes and I'll tell you what is in that sedimentary rock. And if I'm right- you'll also witness the first dance performed on Mars.
What are you saying exactly? Which field do you believe he was going to leverage if not EM?
And another one who doesn't actually read the patent, my whole (admitedly partially bungled) post, or even do a basic google search on what Tesla was proposing. You're not alone though. Everyone nowadays just hears "wireless electrical transmission" and simply assumes this has just gotta mean by an electric field (a la mutual inductance) or by an electromagnetic field (a la radio).
To answer your question: Which field did he propose? No field!. At least, no more so by a field than electrons moving through a wire are using a "field" to directly conduct electricity. Patent 645,576 (I'm not going to link it again here since you didn't bother to click on it to read it before) describes a "System of Transmission of Electrical Energy" directly through the air. Or, since when you hear the word "transmission" you understand "radio transmission", how about if we use rename his patent "System of Conduction of Electrical Energy". He was going to transmit... err... conduct it directly through the air. Like a thunderstorm does. Like a (wait for it) "tesla coil" does. By arcing it up into the sky.
Tesla knew that rarefying air made it far more able to conduct electricity, and he knew that the atmosphere thinned as you proceeded up. So, he reasoned, if you broke down the ionization barrier from the surface and arced the electricity far enough up, that once up there it would continue to conduct fairly easily laterally. Tesla proposes in this patent to use giant transformers to force "electrical impulses of sufficiently-high electromotive force to render elevated air strata conducting, causing, thereby current impulses to pass, by conduction, through the air strata". He knew the voltages would be massive - he thought 20-50 megavolts. Where he got those numbers we don't know. But what we do know is that Tesla did more experimentation on what voltages at what frequencies it takes to arc electricity over large distances than anyone then or since.
Ok... so not EM....
Ah yes.... the skies of the world eternally lit by thousands of arcs creating massive amounts of ozone, with no controlled way to actually deliver the arc since it could arc to anything which was a better path, or randomly to ground. Radio service permanently made useless by brilliant arcs blasting EM. Electronics randomly blown whenever the arc comes close to to the earth.
Tesla was brilliant. But he had this one wrong.
How the hell do you control the arc when every wet tree along the route is a better path? How can you predetermine a path through the atmosphere when we can't even predict when or where lightning will hit?
What I'm saying was advanced electrical theory in Tesla's time- but it beyond basic stuff now.
How can you possibly believe this utter bullshit.
My take on the whole thing is that he was likely over-optimistic in his ability to fathom and harness a system as vast as earth's atmosphere (Ham radio guys could probably tell him a thing or two). Then again this may be a case where you never really know until you try. What Tesla got wrong was that there is no way in such a system to extract payments from users, hence his capitalist backers bailed out before Tesla could demonstrate the soundness of his conjectures.
BTW, yes I am a physicist.
Well I'm a ham radio guy... and a systems engineer.
Tesla would not have created any "exotic" form of energy from that tower- just EM. And we know now that the propagation of radio waves happen in different layers of the ionosphere- not the magnetosphere. Aside from the drastic loss at distance, which would make the system useless, even if you found a way to transmit that energy without loss you would never be able to predict where it would become available. Propagation is always shifting and dependent on what the RF frequency is and what part of the 11 year sunspot cycle we are in.
In fact I'm not aware of any RF emissions which interact with the magnetosphere outside of warping of an antenna pattern (the shape of the EM field created by an antenna) when a signal goes through the magnetosphere. But considering amateur experiments with earth-moon-earth communications there does't seem to be a measurable impact which can be measured. No special preparations were made for that during the Apollo missions either- except to have some kind of matching polarization (circular).
We also do not see any effects in amateur satellite communications.
There's also lightning. There can be lightning 1800 miles away. I can hear it on my equipment. But it never arrives at a destructive (or useful) level. Which would be an argument against some special property of the magnetosphere to transmit end user available power. The only time we see a strong EM field from lightning interact with our equipment is when an EM field collapses from a close strike which overwhelms our ability to shunt it to ground. In those cases our equipment is destroyed. But it's a local occurrence. Lightning strikes in Illinois do not cause problems in Michigan. Lightning strikes 300 meters away are dangerous.
Then... there is aurora propagation. When charged particles from the solar wind dip down into the upper layers of the atmosphere creating ionization. Even in that case the losses involved are staggering.
So in this person's opinion... Tesla was wrong and would never have achieved much beyond a pretty impressive spark gap transmitter.
Note: I am not a physicist.
I'm just here for the PASCAL
Wasn't expecting it... but this really bugs me.
After all these years I have a hard time understanding why "browser wars" are still a thing.
We've got plenty of options and more perhaps coming.
The internet is now inhabited by the "consumer class". They just want to be entertained.
Eternal autumn is exactly that- but it's been extended to every human capable of using a phone.
The venus recording...
https://www.youtube.com/watch?...
However....
As you grow older the lack of a degree starts to cause problems. I'm a systems engineer who has been employed by big computer makers, I've been an IT director, and a consultant. I have programming credits.
I'm 53. Not planning on retiring ever....
Sadly... many of the companies I've interviewed with will not look at me without a degree. Also, in my experience, I had to be better than my peers who had the computer science degree.
That being said- if I can choose only one I'd rather be competent than educated. Nothing wrong with education. But a significant number of people who have the degree are entitled incompetents moving from company to company before they get found out.
The incompetents do however make me a lot of money.
Most of my career was built on solving problems other people could not. That's fine. I like the puzzle. I can consume massive amounts of information in a short period of time. Then I know what to do with that information.
I"m not sure college can prepare you for that unless it's already in your nature.
If I was willing to take a couple of years off and finish my degree, it would make things easier. But then I'd have to rebuild my client base.
Flip a coin. But without a degree a person had better be better really good at the job, willing to start at the bottom, and willing to budget between decidedly large contract paychecks.
It's not the speed of the internet that is the problem- it's humans adapting to it.
Whether it's behavior or security practices it is all about adaptation. Adding "friction" is corporate weasel terminology for "I'm an MBA and can't understand this".
There's nothing like getting a blank stare from an MBA, who is your boss, who either refuses, or cannot, understand technology or it's social consequences.
I'm fairly sure- though I can't find the reference....
This is redundant research. The creation of this sort of fiber was first done in the USA around 2000. It's the manufacturing process which has not scaled up against economics. We don't know how to make vast quantities. Yet.
Also as I remember some resources were pulled from carbon based nano-fibers to research a diamond based product.
Again- pulling this from memory.
I remember a time when a gamer saved the life of an elderly gamer by calling an ambulance when he became delirious.
That might have been in the first year of World of Warcraft. Maybe Dark Age of Camelot. It's been a long time.
Gamer culture sure has changed,
Some scientist needs to see if the lowering of biomass correlates to the increase in c02 in the atmosphere.
Temperature change in this case may not be the key. It could be the change in the atmosphere.
Considering the LibreOffice success, why would OpenOffice continue?
Isn't one of the beauties of open source it's resilience when something becomes abandonware?
OpenOffice is dead... long live LibreOffice... or Neo... or whatever it's called....
Um... how many of these aborts have actually happened?
Isn't the number "0"?
In both cases I mention above one can create much cheaper antennas in a conformal mode.
And they won't work....
You can't slap a metal "backplane" on a sprayed on 2d antenna and get anything other than a ridiculous standing wave ratio. Also, the electronics used in a conformal antennas to create directional beamforming are prohibitively expensive and even classified. "Backplanes" do not create directionality.
The next time you Wikipedia dive for a comment- make sure you read the whole article.
This might make thinner antennas, but they won't be any smaller.
They will still need a plastic support structure, will still need to be the same physical wavelength, and will still need to be mounted away from other metal.
Sadly, it won't change the laws of physics.
You got that right.... Though electrical length can be fudged using Mandelbrot forms. Though it's still not the most efficient antenna.
Most antennas in cell phones are considered "efficient dummy loads". Ever since they went internal there are all kinds of polarization/gain issues. At least with the old semi-vertically polarized antennas you didn't drop 20db of gain by turning your head.
And you are right... spray paint an antenna onto a piece of metal... and the metal will couple distorting the radiation pattern.
The whole technology is rife with pitfalls. But some MBA will try and make it work leading to more crappy products...
Well...Wikileaks is not exactly an equal opportunity leaker. In retrospect there's no higher morality to it's actions or the "materials" released.
The value is in creating chaos. In the Clinton case, in order to believe there was substantive criminal activity, one must believe that the whole of the FBI and intelligence community were in cahoots with Clinton.
It's not like other true leaks like Snowden or the Pentagon Papers. Those were acts of conscience which led to at least some change.
Even in the McCarthy era the real nuance in his actions was not apparent until years later. If you don't get it now- give it ten years.
Wait just a second....
You are bashing RHEL- but ran a Fedora shop? Fedora is not an Enterprise OS. It's RHEL's beta.
Do you have any direct experience running a RHEL shop? I do- and I could not disagree with you more.
This isn't a knock against Debian. I use it. It's good. But in a corporate environment RHEL is a first pick since it's stable, security patches are backported, and an admin can bring in out of stream software sets through yum repos or compiling from source.
Add to that the fact that you can have a box that has been in-place upgraded since RHEL 3 all the way to 7 with no issues other than reconfiguring the box because of out of date conf files.
That's stability.
Now if you want to address being "current"... make sure you aren't talking about "featuritus". Sure you might want a more recent version of Apache. You can easily do that. However, most of the criticisms regarding "old packages" are really nit picking since most issues are solved through backports.
Fedora on the other hand- I only use that for hobbyist purposes.
My god... that number is kinda high...
That aside... this new owner will just accentuate the problem areas of Eve that kept it from truly meeting it's potential.
As it is, it's already a griefing sandbox with little wiggle room for anything except PVP and/or massive corporate/alliance industry or fleet ops. When it could be far more balanced and appeal to a larger player base.
Pushing it further into "gang warfare" style griefing will eventually make the player base smaller.
I stopped playing in 2016. So I played for 12 years. In the old days you could strike out into deep space and have an adventure. These days you can't do that without a full armada or a covert ops frigate. Forget being an industrialist or a trader. Without military backing you can do nothing.
Eve online almost achieved greatness. The hope always was that they would expand space so it was really big... so you could get lost in it.
That's not going to happen now :(
What a wonderful, unfiltered, nugget of truth put forth by that spokesperson. Refreshing.
You always bleed some talent after a startup has some success. People move on for cushier positions because startup employment is hard work.
Apple went through something similar in the mid to late 90s. The people who stayed were said to "bleed six colors". The return of Jobs put and end to that :)
Nothing new here- except someone told the truth. Wonderful!