Re: [Elecraft] coaxial-cable patent# 1407 on 6apr1880.
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: elecraft-boun...@mailman.qth.net On Behalf Of JEROME SODUS Sent: Saturday, January 19, 2019 10:59 PM To: elecraft@mailman.qth.net 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%2Fdata=02%7C01%7C%7C3f171467c8c94095c83e08d67e949db9%7C84df9e7fe9f640afb435%7C1%7C0%7C636835574096449183sdata=d%2BDAeXNVRUv29D0erqw%2FBdpdkMJpfAFwdlUF%2FbJaFm4%3Dreserved=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 examplesinductance, 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%2Felecraftdata=02%7C01%7C%7C3f171467c8c94095c83e08d67e949db9%7C84df9e7fe9f640afb435%7C1%7C0%7C636835574096449183sdata=QyhO%2F3vsQ66R0XymaJdoxhc0BS2yzqiTY6NYSAkafTU%3Dreserved=0 Help: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htmdata=02%7C01%7C%7C3f171467c8c94095c83e08d67e949db9%7C84df9e7fe9f640afb435%7C1%7C0%7C636835574096449183sdata=WMvekuIiZzPlaHoAiz3zVf23%2BthALvG%2FO%2B8Ve4n9yuA%3Dreserved=0 Post: mailto:Elecraft@mailman.qth.net This list hosted by: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.netdata=02%7C01%7C%7C3f171467c8c94095c83e08d67e949db9%7C84df9e7fe9f640afb435%7C1%7C0%7C636835574096605433sdata=LQWKjU2PIb0NgnWVMw13Q0OMvTHg1MqRqXZ%2FdRN%2FVWs%3Dreserved=0 Please help support this email list: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.htmldata=02%7C01%7C%7C3f171467c8c94095c83e08d67e949db9%7C84df9e7fe9f640afb435%7C1%7C0%7C636835574096605433sdata=SRNt2XVRPlEOMAyW0tzEBxSztTJrYOTep%2B8XjgpH18U%3Dreserved=0 Message delivered to woyb10...@outlook.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] coaxial-cable patent# 1407 on 6apr1880.
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 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 > examplesinductance, 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:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to glen.t...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[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://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 examplesinductance, 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
