coaxial-cable patent# 1407 on 6apr1880.

[KM3K]

Hello,


Walter K6WRU has written, "I think we take coaxial cable for granted. It was a brilliant invention and a real gift to people who love radio. Maybe I?ll start celebrating December 8th as Coaxial Cable Day.
https://www.wired.com/2009/12/1208coaxial-cable-patent/"

Well, Walter, perhaps April 6th may be a better date to celebrate because an English fellow, Oliver Heaviside, was granted patent# 1407 on 6-apr-1880 for a coaxial-cable. That's some 51 years earlier.


We owe a debt of gratitude to Heaviside; some examples....

He developed the Transmission-Line theory; so important to hams.

Hams, who are electronic-engineers, know about Maxwell's equations; in truth, they are Heaviside's equations and they are so elegant in their simplicity, having replaced twelve of Maxwell's twenty equations. Maxwell's were so complicated that Heaviside set them aside and developed his four from a different starting point.

Heaviside predicted there must be, in the atmosphere, a conducting layer to let radio waves to follow the Earth's curvature.

Heaviside coined words that we take for granted, some examples....inductance, impedance, permeability, permittivity, admittance, susceptance.

Circuit-Analysis, that I used daily in my design work, was started by Heaviside.


73 Jerry KM3K  

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

[Glen Torr-2]

Hi Jerome,

Thanks so much for bringing this to our attention. One of my most precious
books is the biography of Oliver Heaviside by Paul J. Nahin. (Oliver
Heaviside: The Life, Work and Times of an Electrical Genius of the
Victorian Age).

He was a genius indeed. We have a Professor of Physics here in Australia
called David Jamison, University of Melbourne. He is a follower of Oliver.
I attended a lecture by him some years ago. Very inspiring, Oliver went
within a whisker of defining Relativity. Like Oliver I am a ferm believer
in the ether, just that these days we call it dark matter and dark energy.

Certainly one of my heroes.

Cheers,

Glen, VK1FB

On Sunday, January 20, 2019, JEROME SODUS <[hidden email]> wrote:

> Hello,
>
>
> Walter K6WRU has written, "I think we take coaxial cable for granted. It
> was a brilliant invention and a real gift to people who love radio. Maybe
> I?ll start celebrating December 8th as Coaxial Cable Day.
> https://www.wired.com/2009/12/1208coaxial-cable-patent/"
>
> Well, Walter, perhaps April 6th may be a better date to celebrate because
> an English fellow, Oliver Heaviside, was granted patent# 1407 on 6-apr-1880
> for a coaxial-cable. That's some 51 years earlier.
>
>
> We owe a debt of gratitude to Heaviside; some examples....
>
> He developed the Transmission-Line theory; so important to hams.
>
> Hams, who are electronic-engineers, know about Maxwell's equations; in
> truth, they are Heaviside's equations and they are so elegant in their
> simplicity, having replaced twelve of Maxwell's twenty equations. Maxwell's
> were so complicated that Heaviside set them aside and developed his four
> from a different starting point.
>
> Heaviside predicted there must be, in the atmosphere, a conducting layer
> to let radio waves to follow the Earth's curvature.
>
> Heaviside coined words that we take for granted, some
> examples....inductance, impedance, permeability, permittivity, admittance,
> susceptance.
>
> Circuit-Analysis, that I used daily in my design work, was started by
> Heaviside.
>
>
> 73 Jerry KM3K
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]

[John Langdon]

Heaviside only applied for one patent, but it was a big one. He never collected any royalties on it, and all of his other inventions were published without patent protection, as he thought it his duty share his knowledge.  He started out as a telegrapher, and began developed his math skills by finding faults in undersea cables.  A truly amazing fellow.

For the best book I have found about that era, try "The Maxwellians" by Bruce Hunt, available on Amazon.

73 John N5CQ


-----Original Message-----
From: [hidden email] <[hidden email]> On Behalf Of JEROME SODUS
Sent: Saturday, January 19, 2019 10:59 PM
To: [hidden email]
Subject: [Elecraft] coaxial-cable patent# 1407 on 6apr1880.

Hello,


Walter K6WRU has written, "I think we take coaxial cable for granted. It was a brilliant invention and a real gift to people who love radio. Maybe I?ll start celebrating December 8th as Coaxial Cable Day.
https://eur04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.wired.com%2F2009%2F12%2F1208coaxial-cable-patent%2F&amp;data=02%7C01%7C%7C3f171467c8c94095c83e08d67e949db9%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636835574096449183&amp;sdata=d%2BDAeXNVRUv29D0erqw%2FBdpdkMJpfAFwdlUF%2FbJaFm4%3D&amp;reserved=0"

Well, Walter, perhaps April 6th may be a better date to celebrate because an English fellow, Oliver Heaviside, was granted patent# 1407 on 6-apr-1880 for a coaxial-cable. That's some 51 years earlier.


We owe a debt of gratitude to Heaviside; some examples....

He developed the Transmission-Line theory; so important to hams.

Hams, who are electronic-engineers, know about Maxwell's equations; in truth, they are Heaviside's equations and they are so elegant in their simplicity, having replaced twelve of Maxwell's twenty equations. Maxwell's were so complicated that Heaviside set them aside and developed his four from a different starting point.

Heaviside predicted there must be, in the atmosphere, a conducting layer to let radio waves to follow the Earth's curvature.

Heaviside coined words that we take for granted, some examples....inductance, impedance, permeability, permittivity, admittance, susceptance.

Circuit-Analysis, that I used daily in my design work, was started by Heaviside.


73 Jerry KM3K  

______________________________________________________________
Elecraft mailing list
Home: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&amp;data=02%7C01%7C%7C3f171467c8c94095c83e08d67e949db9%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636835574096449183&amp;sdata=QyhO%2F3vsQ66R0XymaJdoxhc0BS2yzqiTY6NYSAkafTU%3D&amp;reserved=0
Help: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&amp;data=02%7C01%7C%7C3f171467c8c94095c83e08d67e949db9%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636835574096449183&amp;sdata=WMvekuIiZzPlaHoAiz3zVf23%2BthALvG%2FO%2B8Ve4n9yuA%3D&amp;reserved=0
Post: mailto:[hidden email]

This list hosted by: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net&amp;data=02%7C01%7C%7C3f171467c8c94095c83e08d67e949db9%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636835574096605433&amp;sdata=LQWKjU2PIb0NgnWVMw13Q0OMvTHg1MqRqXZ%2FdRN%2FVWs%3D&amp;reserved=0
Please help support this email list: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&amp;data=02%7C01%7C%7C3f171467c8c94095c83e08d67e949db9%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636835574096605433&amp;sdata=SRNt2XVRPlEOMAyW0tzEBxSztTJrYOTep%2B8XjgpH18U%3D&amp;reserved=0
Message delivered to [hidden email]
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]