I've been using computers since the late '70's. Am an Embedded hardware and software Engineer.
Each time I build a new PC, I install Linux and give it a try. But every time there's a show stopper. Mostly unable to run my Engineering programs, PCB design, etc.
But also a vague feeling that it was written by amateurs. Poor documentation, configuration files scattered everywhere, childish images and colour schemes. Inconsistencies with the GUI.
Whatever, I'm certainly no fan of Windows. I keep hoping that something like BeOs/Haiku will come along..
This whole story doesn't make sense. The question is "can they communicate?".
The Amateur Radio Community routinely communicate with clusters of satellites, it doesn't matter that there are a bunch of them in essentially the same orbit. The antennas used have a fairly wide beam-width, so accurate pointing is not necessary.
However over time the bunch spreads out, so it becomes easier to identify individual satellites.
And if the satellites were not intended to communicate, what are they used for?
This report seems to be rather misleading. We know that nerves (eg synaps) can communicate by low frequencies (eg DC and VLF), so cutting the brain matter, then re-joining it should still allow conduction. No surprise there.
No, it is Low Frequency (eg DC) currents in the brain, not RF (Radio Frequency) currents induced from outside. It has been long known that nerves can only respond to quite low frequencies (eg audio).
My particular interest is Radio, and a good SDR (NetSDR+ with SDRConsole) is vastly more capable than the best radio (even military grade) of even thirty years ago.
Computers are much faster and cheaper than was expected, although our operating systems are stil very poor. (Windows and Linux have been way out-paced by the developments in hardware).
The Internet has brought an astounding improvement in the access to information for most people.
Cars are much better (and cheaper) than we expected, and the coming EVs will result in an even greater step forward.
The Minuses:
It shocks me how badly our standard of living has deteriorated: Economic Equality is utterly broken: Employment conditions and rewards have greatly deteriorated. The decline of Consumer Rights, Public Transport, Education, and Medical Insurance are an outrage. And the cost (and quality) of housing is now shameful.
My recollection was that Lifter experimenters knew right fro the start that it was "Ionic Currents" which propelled them. I don't recall any controversy about the fundamental principle.
Yes, the commonly used frequency of microwaves (2.4 GHz) is easily absorbed by water, fat, and sugar.
But the frequency is well removed from maximum absorption point. The frequency band was selected because the optimum frequency would prevent penetration beneath the surface of most foods.
And FWIW, industrial microwave ovens use various other frequency bands for the same reason.
"This idea arises from heating behavior seen if an absorbent layer of water lies beneath a less absorbent drier layer at the surface of a food; in this case,.... etc"
The Microwave is NOT "tuned to be really well absorbed by oils and water for the purpose of cooking".
again...
" It is a common misconception that microwave ovens heat food by operating at a special resonance of water molecules in the food. As noted microwave ovens can operate at many frequencies"
and
"....the microwave oven's operating frequency has absolutely nothing to do with water or any other material resonant frequency whatsoever. Any coincidence is coincidental. The ISM (industrial-scientific-medical) band frequencies given out by the FCC were determined by regulatory/bureaucratic/interference considerations not by physics".
They do take a fair amount of energy to run, but not as bad as you might think if transverse flow heat ex changers are used to recover lost heat (and cold).
Various Chordal keyboards have been developed over the years, and even the basic ASCII versions work rather well.
But there is a well established alternative, it's the ancient Morse Operator's "Iamic Squeeze Keyer".
Those who have never used it will fall about laughing of course, but many have used an Iamic Keyer (via USB adaptor) for keyboard input for years. It's fast and fun, and quickly becomes perfectly natural.
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.
> Since when is it the government's job to pick winners and losers in the market?
Since Regan and Thatcher and the mindlessness of Neoliberalism.
The simple fact that the technology was developed by the CSIRO should indicate that we could have gone on and become a world leader in Solar Manufacturing.
In recent times however the Neoliberals have been systematically wrecking the public assets of our country. Our Telcoms/Electricity/water have been sold off, our precious windfalls from the mineral boom have been wasted, and now they are trying to dismember Medicare.
When I first went to Asia, I was amazed at the amount of Video and Audio Chat being used. Then I realized that it was mostly young people in the cities talking to their aged parents in the village, who often couldn't read, or who couldn't cope with email (eg poor eyesight).
I think that this initial application soon spread to the whole population.
The problem is not building a cheap house, the problem is finding somewhere to put it.
In my country (Australia) countless thousands of acres have been rezoned as "Farming" which means that it is illegal to build on less than 100 acres. The Real Estate Developers have bribed the corrupt councils to pass thousands of regulations which make it impossible to build, and instead force people to buy land in their ticky-tacky developments.
We have the lowest population density in the world, and the highest house prices.
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I've been using computers since the late '70's. Am an Embedded hardware and software Engineer.
Each time I build a new PC, I install Linux and give it a try. But every time there's a show stopper.
Mostly unable to run my Engineering programs, PCB design, etc.
But also a vague feeling that it was written by amateurs.
Poor documentation, configuration files scattered everywhere, childish images and colour schemes.
Inconsistencies with the GUI.
Whatever, I'm certainly no fan of Windows. I keep hoping that something like BeOs/Haiku will come along..
> The amateur radio community can only communicate with them if the frequencies are public
Obviously I was talking about Amateurs communicating with Amateur satellites.
And likewise Commercial entities communicating with Commercial satellites.
What is your point? We still don't know if anyone is communicating with them.
This whole story doesn't make sense. The question is "can they communicate?".
The Amateur Radio Community routinely communicate with clusters of satellites,
it doesn't matter that there are a bunch of them in essentially the same orbit.
The antennas used have a fairly wide beam-width, so accurate pointing is not necessary.
However over time the bunch spreads out, so it becomes easier to identify individual satellites.
And if the satellites were not intended to communicate, what are they used for?
People are making a fuss out of nothing..
Since day one, if you wanted to use radio equipment it had to be Compliant.
And if you modified it, it was no longer Compliant.
So if you want to modify compliant equipment, it is up to you to have it re-certified.
Unless you are a licensed Radio Amateur. Then you can self-certify the continuing Compliance of your Ham gear.
As a Licensed Radio Amateur you should know that even a Receiving device can generate spurious products if you mess with the firmware.
And no, a Router is not a receiving device.
This report seems to be rather misleading. We know that nerves (eg synaps) can communicate by low frequencies (eg DC and VLF), so cutting the brain matter, then re-joining it should still allow conduction. No surprise there.
No, it is Low Frequency (eg DC) currents in the brain, not RF (Radio Frequency) currents induced from outside.
It has been long known that nerves can only respond to quite low frequencies (eg audio).
The directional radiation you mentioned still obeys the Inverse Square Law.
Antenna Gain means that the radiation in a given direction is increased, but then the radiation in that direction still falls off as Inverse Squared.
The Pluses:
My particular interest is Radio, and a good SDR (NetSDR+ with SDRConsole) is vastly more capable than the best radio (even military grade) of even thirty years ago.
Computers are much faster and cheaper than was expected, although our operating systems are stil very poor.
(Windows and Linux have been way out-paced by the developments in hardware).
The Internet has brought an astounding improvement in the access to information for most people.
Cars are much better (and cheaper) than we expected, and the coming EVs will result in an even greater step forward.
The Minuses:
It shocks me how badly our standard of living has deteriorated:
Economic Equality is utterly broken:
Employment conditions and rewards have greatly deteriorated.
The decline of Consumer Rights, Public Transport, Education, and Medical Insurance are an outrage.
And the cost (and quality) of housing is now shameful.
Lifters and Ion wind devices were studied in detail by NASA and MIT.
https://en.wikipedia.org/wiki/...
My recollection was that Lifter experimenters knew right fro the start that it was "Ionic Currents" which propelled them.
I don't recall any controversy about the fundamental principle.
You have it exactly backwards:
Yes, the commonly used frequency of microwaves (2.4 GHz) is easily absorbed by water, fat, and sugar.
But the frequency is well removed from maximum absorption point. The frequency band was selected because the optimum frequency would prevent penetration beneath the surface of most foods.
And FWIW, industrial microwave ovens use various other frequency bands for the same reason.
Microwaves DON'T heat from the inside out:
see Wickipedia: https://en.wikipedia.org/wiki/...
"This idea arises from heating behavior seen if an absorbent layer of water lies beneath a less absorbent drier layer at the surface of a food; in this case, .... etc"
The Microwave is NOT "tuned to be really well absorbed by oils and water for the purpose of cooking".
again...
" It is a common misconception that microwave ovens heat food by operating at a special resonance of water molecules in the food. As noted microwave ovens can operate at many frequencies"
and
"....the microwave oven's operating frequency has absolutely nothing to do with water or any other material resonant frequency whatsoever. Any coincidence is coincidental. The ISM (industrial-scientific-medical) band frequencies given out by the FCC were determined by regulatory/bureaucratic/interference considerations not by physics".
Nothing new here folks.
Commercial Atmospheric water generators have been around for a long time
see https://en.wikipedia.org/wiki/...
The military routinely use them in desert areas.
They do take a fair amount of energy to run, but not as bad as you might think if transverse flow heat ex changers are used to recover lost heat (and cold).
Various Chordal keyboards have been developed over the years, and even the basic ASCII versions work rather well.
But there is a well established alternative, it's the ancient Morse Operator's "Iamic Squeeze Keyer".
Those who have never used it will fall about laughing of course, but many have used an Iamic Keyer (via USB adaptor) for keyboard input for years. It's fast and fun, and quickly becomes perfectly natural.
> and in the middle of it you have a giant mammoth antenna
But this doesn't make it smaller or more compact.
It still needs the same wavelength and the same spacing from nearby components.
This only requires that you run a relatively thin wire.
And if you are going to paint over it, it doesn't even need to be thin.
FWIW, Hams have been using "invisible" stealth antennas since day one.
And invisible antennas have been printed on car windscreens for years
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.
> This Chip is NOT Hand Solderable
ROFL. You must be a software person.
Me, I routinely hand solder TQFP chips.
And I'm in my late 70's with eyesight problems..
> Since when is it the government's job to pick winners and losers in the market?
Since Regan and Thatcher and the mindlessness of Neoliberalism.
The simple fact that the technology was developed by the CSIRO should indicate that we could have gone on and become a world leader in Solar Manufacturing.
In recent times however the Neoliberals have been systematically wrecking the public assets of our country. Our Telcoms/Electricity/water have been sold off, our precious windfalls from the mineral boom have been wasted, and now they are trying to dismember Medicare.
When I first went to Asia, I was amazed at the amount of Video and Audio Chat being used. Then I realized that it was mostly young people in the cities talking to their aged parents in the village, who often couldn't read, or who couldn't cope with email (eg poor eyesight).
I think that this initial application soon spread to the whole population.
Lots of folks build FM Crystal Sets.
http://solomonsmusic.net/FM_Cr...
http://theradioboard.com/rb/vi...
http://theradioboard.com/rb/vi...
http://theradioboard.com/rb/vi...
http://theradioboard.com/rb/vi...
You can stack antennas to get more gain, it's called a Co-Linear or Phased-Array.
But trying to get over the horizon does not scale linearily, Once you lose Line-of-Site, more gain doesn't much help.
The problem is not building a cheap house, the problem is finding somewhere to put it.
In my country (Australia) countless thousands of acres have been rezoned as "Farming" which means that it is illegal to build on less than 100 acres. The Real Estate Developers have bribed the corrupt councils to pass thousands of regulations which make it impossible to build, and instead force people to buy land in their ticky-tacky developments.
We have the lowest population density in the world, and the highest house prices.
My first computer (in 1979) was a hand-wired board using a MM5701 maths processor.
Later built a homebrew 6502 computer connected to an old Teletype.
Next built a S100 system, then bought an Apple IIe.
It is true that the US Immunity laws are very lax, but to be sold world-wide it must meet EU/JA/AUS Immunity standards.
And even under Part 15 there are still Susceptibility tests.
Whatever, any manufacturer who ignores immunity testing is asking for big trouble.