Australian Politics Forum - the speed of sound, light and wireless.

aussiefree2ride

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Re: the speed of sound, light and wireless.
Reply #30 - Oct 2^nd, 2010 at 12:54pm

Sir lastnail wrote on Oct 2^nd, 2010 at 12:29pm:

aussiefree2ride wrote on Oct 2^nd, 2010 at 12:27pm:

WTF are you talking about? Huh

well what the hell is "AGW religion" ??

That's the terminology that Andrew Bolt uses in the Herald Sun.

I haven`t read bolt`s column but it means "Anthropogenic Global Warming." this is a very common term.

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Sir lastnail

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Re: the speed of sound, light and wireless.
Reply #31 - Oct 2^nd, 2010 at 1:38pm

aussiefree2ride wrote on Oct 2^nd, 2010 at 12:54pm:

Sir lastnail wrote on Oct 2^nd, 2010 at 12:29pm:

aussiefree2ride wrote on Oct 2^nd, 2010 at 12:27pm:

WTF are you talking about? Huh

well what the hell is "AGW religion" ??

That's the terminology that Andrew Bolt uses in the Herald Sun.

I haven`t read bolt`s column but it means "Anthropogenic Global Warming." this is a very common term.

but when did it become a religion ??

Is that just because Bolt the ignoramus says so ?

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In August 2021, Newcastle Coroner Karen Dilks recorded that Lisa Shaw had died “due to complications of an AstraZeneca COVID vaccination”.

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freediver

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Re: the speed of sound, light and wireless.
Reply #32 - Oct 2^nd, 2010 at 1:56pm

longweekend58 wrote on Oct 2^nd, 2010 at 12:13pm:

freediver wrote on Oct 2^nd, 2010 at 11:08am:

longweekend58 wrote on Oct 1^st, 2010 at 11:16pm:

Ive been flabbergasted by the technical idiocy of so many posters who apparently were asleep in science class as well as many other classes.

Ive read posters talking about the superiority of fibre optic because it 'operates at the speed of light' whereas the copper does not and the first prize definately goes to equitist who believes wireless operates at the speed of sound.

the copper network operates at approximately 96-99% of the speed of light. fibre operates at around the same speed. wireless - being electromagnetic waves JUST LIKE LIGHT also operates at - you guessed it - the speed of light.

what truly staggers me is how any of you dimwits could possibly think differently. did it not occur to you that when you speak on the phone (either wireless or copper) to someone overseas why there is no delay? did that not twig you 'minds' that voice travelling virtually instantaneously over 15,000km or more might be travelling a bit faster than the speed of sound? or when NASA spoke to apollo 11 the wireless signal didnt take 2 weeks to get there?

some of you are strange, strange people.

I can make a copper wire based phone that transmits noise at the speed of sound.

so are you one of the simpletons that wants to maintain that copper transmits signals at less than the speed of light (well 0.96c)?

What I said was that I can make a copper wire based phone that transmits noise at the speed of sound.

BTW, it is actually the speed of light. The 0.96 or whatever refers to the difference between the speed of light in the medium and the speed of light in a vacuum.

Also, this is not the relevant measure of speed. Bit rate and signal travel speed are not the same. It is the bit rate that matters.

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People who can't distinguish between etymology and entomology bug me in ways I cannot put into words.

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Bobby.

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Re: the speed of sound, light and wireless.
Reply #33 - Oct 2^nd, 2010 at 3:17pm

longweekend58 wrote on Oct 2^nd, 2010 at 12:21pm:

Bobby. wrote on Oct 2^nd, 2010 at 10:27am:

Hi Nail,
Just did some interesting calculations.
There are 3 main infrared wavelengths available:
850 nm, 1300nm, & 1550nm.
Lets take the slowest one - the last.
frequency = velocity/wavelength

3 x 10

8

/ 1550 x10

-9

= 194,000 GHz = possible future bandwidth.

This compares to microwave frequencies of 1 to 20 GHz.
Radio has a pathetic potential bandwidth compared to fiber -
& every fiber has that potential bandwidth
( which may be realised one day soon.)

You demonstrate how little you know about telecommunications. radio/wireless is NOT limited to 20Ghz and can in fact go into the terahertz range. Or did google not tell you that?

Rubbish - terahertz is in the light part of the spectrum.
There are no microwave links at that frequency working for the internet. 1 to 20 MHz would be typical.
see:
http://en.wikipedia.org/wiki/Extremely_high_frequency

Quote:

Extremely high frequency is the highest radio frequency band. EHF runs the range of frequencies from 30 to 300 gigahertz, above which electromagnetic radiation is considered to be low (or far) infrared light, also referred to as terahertz radiation.

Longweekend -
there is no way that you have a degree in science.

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Sir lastnail

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Re: the speed of sound, light and wireless.
Reply #34 - Oct 2^nd, 2010 at 3:37pm

Bobby. wrote on Oct 2^nd, 2010 at 3:17pm:

longweekend58 wrote on Oct 2^nd, 2010 at 12:21pm:

Bobby. wrote on Oct 2^nd, 2010 at 10:27am:

Hi Nail,
Just did some interesting calculations.
There are 3 main infrared wavelengths available:
850 nm, 1300nm, & 1550nm.
Lets take the slowest one - the last.
frequency = velocity/wavelength

3 x 10

8

/ 1550 x10

-9

= 194,000 GHz = possible future bandwidth.

This compares to microwave frequencies of 1 to 20 GHz.
Radio has a pathetic potential bandwidth compared to fiber -
& every fiber has that potential bandwidth
( which may be realised one day soon.)

You demonstrate how little you know about telecommunications. radio/wireless is NOT limited to 20Ghz and can in fact go into the terahertz range. Or did google not tell you that?

Rubbish - terahertz is in the light part of the spectrum.
There are no microwave links at that frequency working for the internet. 1 to 20 MHz would be typical.
see:
http://en.wikipedia.org/wiki/Extremely_high_frequency

Quote:

Extremely high frequency is the highest radio frequency band. EHF runs the range of frequencies from 30 to 300 gigahertz, above which electromagnetic radiation is considered to be low (or far) infrared light, also referred to as terahertz radiation.

Longweekend -
there is no way that you have a degree in science.

He doesn't understand anything about modulation and the Nyquist-Shanon sampling theory.

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In August 2021, Newcastle Coroner Karen Dilks recorded that Lisa Shaw had died “due to complications of an AstraZeneca COVID vaccination”.

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Bobby. Gold Member Offline Australian Politics Posts: 103136 Melbourne Gender:	Re: the speed of sound, light and wireless. Reply #35 - Oct 2^nd, 2010 at 4:45pm Nail, Quote: He doesn't understand anything about modulation and the Nyquist-Shanon sampling theory. Longweekend is a fraud. He's been caught many times.
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Sir lastnail

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Re: the speed of sound, light and wireless.
Reply #36 - Oct 2^nd, 2010 at 4:49pm

Bobby. wrote on Oct 2^nd, 2010 at 4:45pm:

Nail,
Quote:

He doesn't understand anything about modulation and the Nyquist-Shanon sampling theory.

Longweekend is a fraud.
He's been caught many times.

He thinks he knows everything but knows very little. A little knowledge is a dangerous thing.

He takes great pride in catching people out when it is himself who always gets caught out Wink

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In August 2021, Newcastle Coroner Karen Dilks recorded that Lisa Shaw had died “due to complications of an AstraZeneca COVID vaccination”.

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longweekend58

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Re: the speed of sound, light and wireless.
Reply #37 - Oct 2^nd, 2010 at 4:49pm

freediver wrote on Oct 2^nd, 2010 at 1:56pm:

longweekend58 wrote on Oct 2^nd, 2010 at 12:13pm:

freediver wrote on Oct 2^nd, 2010 at 11:08am:

longweekend58 wrote on Oct 1^st, 2010 at 11:16pm:

Ive been flabbergasted by the technical idiocy of so many posters who apparently were asleep in science class as well as many other classes.

Ive read posters talking about the superiority of fibre optic because it 'operates at the speed of light' whereas the copper does not and the first prize definately goes to equitist who believes wireless operates at the speed of sound.

the copper network operates at approximately 96-99% of the speed of light. fibre operates at around the same speed. wireless - being electromagnetic waves JUST LIKE LIGHT also operates at - you guessed it - the speed of light.

what truly staggers me is how any of you dimwits could possibly think differently. did it not occur to you that when you speak on the phone (either wireless or copper) to someone overseas why there is no delay? did that not twig you 'minds' that voice travelling virtually instantaneously over 15,000km or more might be travelling a bit faster than the speed of sound? or when NASA spoke to apollo 11 the wireless signal didnt take 2 weeks to get there?

some of you are strange, strange people.

I can make a copper wire based phone that transmits noise at the speed of sound.

so are you one of the simpletons that wants to maintain that copper transmits signals at less than the speed of light (well 0.96c)?

What I said was that I can make a copper wire based phone that transmits noise at the speed of sound.

BTW, it is actually the speed of light. The 0.96 or whatever refers to the difference between the speed of light in the medium and the speed of light in a vacuum.

Also, this is not the relevant measure of speed. Bit rate and signal travel speed are not the same. It is the bit rate that matters.

I know that. apparently YOU know that but it seems most of your fellow NBN advocates dont.

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AUSSIE: "Speaking for myself, I could not care less about 298 human beings having their life snuffed out in a nano-second, or what impact that loss has on Members of their family, their parents..."

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longweekend58

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Re: the speed of sound, light and wireless.
Reply #38 - Oct 2^nd, 2010 at 4:51pm

Bobby. wrote on Oct 2^nd, 2010 at 3:17pm:

longweekend58 wrote on Oct 2^nd, 2010 at 12:21pm:

Bobby. wrote on Oct 2^nd, 2010 at 10:27am:

Hi Nail,
Just did some interesting calculations.
There are 3 main infrared wavelengths available:
850 nm, 1300nm, & 1550nm.
Lets take the slowest one - the last.
frequency = velocity/wavelength

3 x 10

8

/ 1550 x10

-9

= 194,000 GHz = possible future bandwidth.

This compares to microwave frequencies of 1 to 20 GHz.
Radio has a pathetic potential bandwidth compared to fiber -
& every fiber has that potential bandwidth
( which may be realised one day soon.)

You demonstrate how little you know about telecommunications. radio/wireless is NOT limited to 20Ghz and can in fact go into the terahertz range. Or did google not tell you that?

Rubbish - terahertz is in the light part of the spectrum.
There are no microwave links at that frequency working for the internet. 1 to 20 MHz would be typical.
see:
http://en.wikipedia.org/wiki/Extremely_high_frequency

Quote:

Extremely high frequency is the highest radio frequency band. EHF runs the range of frequencies from 30 to 300 gigahertz, above which electromagnetic radiation is considered to be low (or far) infrared light, also referred to as terahertz radiation.

Longweekend -
there is no way that you have a degree in science.

you understand only that which you can google. it is a waste of time arguing with twits like you.

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AUSSIE: "Speaking for myself, I could not care less about 298 human beings having their life snuffed out in a nano-second, or what impact that loss has on Members of their family, their parents..."

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Bobby.

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Re: the speed of sound, light and wireless.
Reply #39 - Oct 2^nd, 2010 at 4:52pm

Sir lastnail wrote on Oct 2^nd, 2010 at 4:49pm:

Bobby. wrote on Oct 2^nd, 2010 at 4:45pm:

Nail,
Quote:

He doesn't understand anything about modulation and the Nyquist-Shanon sampling theory.

Longweekend is a fraud.
He's been caught many times.

He thinks he knows everything but knows very little. A little knowledge is a dangerous thing.

He takes great pride in catching people out when it is himself who always gets caught out Wink

Longweekend should be banned for fraudulently stating that
he has a degree in science.

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Sir lastnail

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Re: the speed of sound, light and wireless.
Reply #40 - Oct 2^nd, 2010 at 4:53pm

Bobby. wrote on Oct 2^nd, 2010 at 4:52pm:

Sir lastnail wrote on Oct 2^nd, 2010 at 4:49pm:

Bobby. wrote on Oct 2^nd, 2010 at 4:45pm:

Nail,
Quote:

He doesn't understand anything about modulation and the Nyquist-Shanon sampling theory.

Longweekend is a fraud.
He's been caught many times.

He thinks he knows everything but knows very little. A little knowledge is a dangerous thing.

He takes great pride in catching people out when it is himself who always gets caught out Wink

Longweekend should be banned for fraudulently stating that
he has a degree in science.

But it is true he has a science degree off the back of a cornflakes packet Wink

LOL

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In August 2021, Newcastle Coroner Karen Dilks recorded that Lisa Shaw had died “due to complications of an AstraZeneca COVID vaccination”.

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Lisa Jones Gold Member Offline Australian Politics Posts: 39047 Sydney Gender:	Re: the speed of sound, light and wireless. Reply #41 - Oct 2^nd, 2010 at 4:53pm LMAO!
Back to top	If I let myself be bought then I am no longer free. HYPATIA - Greek philosopher, mathematician and astronomer (370 - 415) IP Logged

Bobby. Gold Member Offline Australian Politics Posts: 103136 Melbourne Gender:	Re: the speed of sound, light and wireless. Reply #42 - Oct 2^nd, 2010 at 4:56pm Lisa Jones wrote on Oct 2^nd, 2010 at 4:53pm: LMAO! Hi Lisa, How's things in Sydney land?
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Sir lastnail Gold Member Offline Australian Politics Posts: 30067 Gender:	Re: the speed of sound, light and wireless. Reply #43 - Oct 2^nd, 2010 at 4:58pm longweekend58 wrote on Oct 2^nd, 2010 at 4:51pm: you understand only that which you can google. it is a waste of time arguing with twits like you. We don't have to google it because we understand it from University
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Bobby.

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Re: the speed of sound, light and wireless.
Reply #44 - Oct 2^nd, 2010 at 5:03pm

Sir lastnail wrote on Oct 2^nd, 2010 at 4:58pm:

longweekend58 wrote on Oct 2^nd, 2010 at 4:51pm:

you understand only that which you can google. it is a waste of time arguing with twits like you.

We don't have to google it because we understand it from University Wink

Correct Nail.
Longweekend thinks that radio waves can be propagated from a microwave
dish at terahertz frequencies.
He doesn't realise that at those frequencies the electromagnetic wave
is propagated as infrared light.

Caught red handed with his pants down in a girls school. Grin

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