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Research would imply that its actually a very broad spectrum ranging from ELF (3-30Hz) up to microwave frequencies (1Ghz+)
http://radiometrics.com/data/uploads/2014/01/Petersen_AR_14.pdf
Admitedly pure DC would indeed be made up of components of all frequencies but it appears that some frequencies are more pronounced.
Interference of radio signals during a thunderstorm would also support this. Also don't forget Marconi's transmitter was a spark transmitter.
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greldak wrote: Interference of radio signals
Wouldn't this be caused by the interactions with the atmosphere?
greldak wrote: some frequencies are more pronounced.
That makes sense with the "flashing" that occurs with lightening.
Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun
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Not with the atmosphere per se but yes - thats the electrical discharge.
The fuselage is acting as an antenna and so a current will be induced in it at the frequencies of the EM radiation to which it is exposed. This then gets reradiated as another electrical discharge.
With the huge currents involved the air ionises which is what we see as lightning.
In practice this happens thousands of times every year. The current flows around the fuselage so all parts of the aircraft are at the same potential. This means you can safely touch the metal parts of the aircract as the potential difference between the two point you are connecting is zero. - This is also why seagulls don't get electrocuted when they land on a high voltage powerline.
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greldak wrote: With the huge currents involved the air ionises
This is what I meant by interacting with the atmosphere. Isn't it the ionization of the air that causes the radio interference? Does a spark in a vacuum cause the same interference?
Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun
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TheGreatAndPowerfulOz wrote: Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
Jeremy Falcon
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Neal A. Maxwell was a great man.
Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun
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It's a little disturbing to think that the path of least resistance was through a rubber tire. I guess I have to learn more how lightning works!
Marc
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Maxwell will give you the answer 
modified 19-Jan-21 21:04pm.
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Maxwell Edison? Majoring in medicine?
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It probably conducted through the water and/or the metal radials within the tire. Lightning is essentially "static electricity" and hence has DC characteristics rather than AC characteristics (i.e. no "frequency" to speak of).
Decrease the belief in God, and you increase the numbers of those who wish to play at being God by being “society’s supervisors,” who deny the existence of divine standards, but are very serious about imposing their own standards on society.-Neal A. Maxwell
You must accept 1 of 2 basic premises: Either we are alone in the universe or we are not alone. Either way, the implications are staggering!-Wernher von Braun
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Last weekend I took the leap and updated my Windows 7 Pro Lenovo to Windows 10 Pro. I'm quite happy with what I see, but that isn't much - nothing like the merciless fall from 7 to 8.1, but some things aren't quite right. Sometimes when I start up, the start menu just doesn't work, not just the Windows Key search, but clicking the start menu icon does nothing. Then, after a restart, all is well, for an indefinite number of restarts later.
My PC is a few years old and I have never formatted and cleaned up or anything, because I've never had enough trouble, but now I am tempted; I now have a separate Dell laptop from work I can use to back up my Lenovo files and stuff, but I would still rather not have to do that until I fit a second hard drive to my laptop and the process will be easy-peasy.
Does anyone know of any good diagnostics tools that are suitable for, or targeted at, pre-Ten machines that have been upgraded? Even a pre-Ten tool that could help me clean up about four years of really diverse and miscellaneous crap.
No object is so beautiful that, under certain conditions, it will not look ugly. - Oscar Wilde
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Brady Kelly wrote: Does anyone know of any good diagnostics tools
Try format c: in the command line. 
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Quote: Sometimes when I start up, the start menu just doesn't work, not just the Windows Key search, but clicking the start menu icon does nothing.
That is the beauty of XAML, fast, isn't it? 
There is a Windows.old folder, comprising of more than 30GB in size, use the Disk cleanup, it will help you clean up the disk and make your system a little faster. I won't say it would be great and back in the same place, but it may make it better.
The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~
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I suspect that it is not diagnostic tools but a little patience that you require. Periodically the system needs to do a full start-up to keep the quick start-up properly calibrated. Attempt to do something before this is fully complete and you have a potential lock up as you've experienced. Personally I've never understood this desperate need to get boot time world records but apparently everybody else just can't switch a computer on and take in the beauty of the sky for a minute before plunging into action. Consider this at least a degree of reaping what you sow!
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Me and my colleagues get that sometimes too. I guess opening up that start window must read a lot of data and render a lot of objects due to the new tile portion.
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Well, since I can't get Sonar to even open a simple MIDI file, Win10 is being removed. Again. Damn Watchdog error, even after a clean install of everything. No errors in the Event logs. No nuffin'.
Works fine in 7. Even works fine in 8.1, but not 10.
But I'll try again in a couple months because I do like the rest of 10. Mostly.
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Want to hear a joke about sodium?
Na.
Want to hear a joke about sodium hypobromite?
Na bro.
/ravi
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na bro. funny.
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I was also thinking about a Helium joke. He He!
The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~
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You don't have to repeat the joke, we got it the first time...
Anything that is unrelated to elephants is irrelephant
Anonymous
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The problem with quotes on the internet is that you can never tell if they're genuine
Winston Churchill, 1944
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I'd just like a chance to prove that money can't make me happy.
Me, all the time
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I had double the fun! So, you understand...
The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~
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There's also this joke about Gallium Arsenide that's a real GaAs!
/ravi
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There was another joke about the event when Oxygen and Potassium went on date, well it went OK! 
The sh*t I complain about
It's like there ain't a cloud in the sky and it's raining out - Eminem
~! Firewall !~
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Want to hear a joke about sodium hydride?
NaH.
Want to hear a joke about nitrous oxide?
NO.
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My cousin is a chemistry lecturer. He recently turned up at a beer festival wearing a t-shirt that read:
"If you get with me, you'll be Fe2Mg5Si8O22(OH)2[^]"
Thus proving that nerds aren't limited to IT. 
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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