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Recommended Reading
I purchased this book yesterday and have found it to be the best book
on the subject of Tesla I have read so far. Wizard The Life And Times Of Nikola Tesla Biography Of A Genius By Marc J. Seifer jon |
Another "character" that was interesting to read about
is Charles P. Steinmetz -- major influence on the electrical systems of today. mikey "jon_banquer" wrote in message oups.com... I purchased this book yesterday and have found it to be the best book on the subject of Tesla I have read so far. Wizard The Life And Times Of Nikola Tesla Biography Of A Genius By Marc J. Seifer jon |
"jon_banquer" wrote in message oups.com... I purchased this book yesterday and have found it to be the best book on the subject of Tesla I have read so far. Wizard The Life And Times Of Nikola Tesla Biography Of A Genius By Marc J. Seifer jon Yes, I've read a lot of stuff on Tesla. He was misunderstood and not given the praise that he should have recieved. A true genius! For example, most people say that Marconi invented the radio when in fact it was Tesla. Lane |
Right on mikey. I have a lot of old Elec. Eng. texts and most of them
mention Steinmetz. Bob Swinney "Mike Fields" wrote in message ... Another "character" that was interesting to read about is Charles P. Steinmetz -- major influence on the electrical systems of today. mikey "jon_banquer" wrote in message oups.com... I purchased this book yesterday and have found it to be the best book on the subject of Tesla I have read so far. Wizard The Life And Times Of Nikola Tesla Biography Of A Genius By Marc J. Seifer jon |
"Just Me" notreal at nowhere dot com wrote in message ... "jon_banquer" wrote in message oups.com... I purchased this book yesterday and have found it to be the best book on the subject of Tesla I have read so far. Wizard The Life And Times Of Nikola Tesla Biography Of A Genius By Marc J. Seifer jon Yes, I've read a lot of stuff on Tesla. He was misunderstood and not given the praise that he should have recieved. A true genius! For example, most people say that Marconi invented the radio when in fact it was Tesla. Lane I suspect Marconi got the credit because he perfected the coherer, a sort of liquid diode type of thing to detect RF. Bob Swinney |
jon_banquer wrote:
The Life And Times Of Nikola Tesla I liked "Nikola Tesla, the man who invented the 20th century" a lot. Nick -- Motormodelle / Engine Models: http://www.motor-manufaktur.de Ellwe 2FB * VTM 87 * DLM-S3a * cubic more to come ... |
On 12 Jul 2005 14:35:35 -0700, "jon_banquer"
wrote: I purchased this book yesterday and have found it to be the best book on the subject of Tesla I have read so far. You could actually be let inside a library if you bathed & asked nicely. -- Cliff |
I saw a documentary on Tesla some months ago.......If I recall
correctly, it was stated that Tesla was to receive a royalty of something like $2 for every horsepower of electrical motors produced (by Westinghouse or some other firm)......I think the contract was changed or never signed......If it was true and ever took place, the wealth of Tesla would probably make Bill Gates look like a pauper in comparison........ |
PS and FWIW Another recommended Tesla Tome is "The Inventions, Researches
and Writings of Nikola Tesla". Very technical; contains a lot of papers and addresses to various intellectual bodies of the time. A hard read, though, because a lot of the terminology used is different from that of today. Bob Swinney "Just Me" notreal at nowhere dot com wrote in message ... "jon_banquer" wrote in message oups.com... I purchased this book yesterday and have found it to be the best book on the subject of Tesla I have read so far. Wizard The Life And Times Of Nikola Tesla Biography Of A Genius By Marc J. Seifer jon Yes, I've read a lot of stuff on Tesla. He was misunderstood and not given the praise that he should have recieved. A true genius! For example, most people say that Marconi invented the radio when in fact it was Tesla. Lane |
In article , Robert Swinney says...
ne I suspect Marconi got the credit because he perfected the coherer, a sort of liquid diode type of thing to detect RF. (attributes got messed up a bit I think there, was that Bob's comment?) Coherers are not electrolytic, they use powdered metal filings which stick together (cohere) under the influence of applied rf energy. There is good reason to believe that while marconi developed the coherer into a relatively well-funtioning product, he did not invent it. Reginald Fessenden invented the electrolytic detector which is probably the 'liquid diode' mentioned above. Jim -- ================================================== please reply to: JRR(zero) at pkmfgvm4 (dot) vnet (dot) ibm (dot) com ================================================== |
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(attributes got messed up a bit I think there, was that Bob's comment?) Coherers are not electrolytic, they use powdered metal filings which stick together (cohere) under the influence of applied rf energy. There is good reason to believe that while marconi developed the coherer into a relatively well-funtioning product, he did not invent it. Reginald Fessenden invented the electrolytic detector which is probably the 'liquid diode' mentioned above. Jim -- ================================================== please reply to: JRR(zero) at pkmfgvm4 (dot) vnet (dot) ibm (dot) com ================================================== |
Jim sez: "Coherers are not electrolytic, they use powdered metal filings
which stick together (cohere) under the influence of applied rf energy. There is good reason to believe that while marconi developed the coherer into a relatively well-funtioning product, he did not invent it." Reginald Fessenden invented the electrolytic detector which is probably the 'liquid diode' mentioned above." My mistake Jim. The key point is that Marconi developed a way to detect (demod) RF whereas Tesla may have been among the first to generate RF. I think it is safe to say Marconi perfected wireless transmission of telegraph signals. Thanx for the correction on Fessenden's liquid diode. I recall reading that early watt-hour meters were electrolytic devices. Not sure how they worked, though. Maybe someone can help. Boib Swinney |
Westinghouse asked him to let him out of it, for cash flow problems.
And he did. (!) Pete |
On Wed, 13 Jul 2005 15:35:36 -0500, "Robert Swinney"
wrote: I recall reading that early watt-hour meters were electrolytic devices. Not sure how they worked, though. Maybe someone can help. Boib Swinney I may not remeber this 100% correctly, but I seem to recall reading that at one point, one type of meter was a sort of electrolytic cell with copper bars in it, in which as the customer drew power from the line, it would cause material to be plated onto the copper bars. Periodically, the "meter reader" would drop by and weigh the rods to determine how much to bill the customer. Drawing a blank on the details and source, so this could be all wrong. G -AL |
Al A. wrote:
On Wed, 13 Jul 2005 15:35:36 -0500, "Robert Swinney" wrote: I recall reading that early watt-hour meters were electrolytic devices. Not sure how they worked, though. Maybe someone can help. Boib Swinney I may not remeber this 100% correctly, but I seem to recall reading that at one point, one type of meter was a sort of electrolytic cell with copper bars in it, in which as the customer drew power from the line, it would cause material to be plated onto the copper bars. Periodically, the "meter reader" would drop by and weigh the rods to determine how much to bill the customer. Drawing a blank on the details and source, so this could be all wrong. G I've heard of such a thing. A lot of old Sony pro video gear had hour meters that worked on the same principle. A little glass cartridge about the size of a 3AG fuse with a bead of metal that would move over time when current was applied. They were good for 1000 hours and then could be flipped around for another 1000 hours. |
In article , Robert Swinney says...
... I recall reading that early watt-hour meters were electrolytic devices. Not sure how they worked, though. Maybe someone can help. Ah, now *that* was edison, of course. He could not make any kind of watt-hour meter that depended on any AC effects of course. So he invented and used the electrolytic type. They had to be kept from freezing incidently. Jim -- ================================================== please reply to: JRR(zero) at pkmfgvm4 (dot) vnet (dot) ibm (dot) com ================================================== |
On Wed, 13 Jul 2005 15:35:36 -0500, Robert Swinney wrote:
My mistake Jim. The key point is that Marconi developed a way to detect (demod) RF whereas Tesla may have been among the first to generate RF. I think it is safe to say Marconi perfected wireless transmission of telegraph signals. Thanx for the correction on Fessenden's liquid diode. Jagadish Chandra Bose, an Indian physicist, has been credited with wireless signaling well before Marconi. He demonstrated signaling and remote control with microwaves in the 1896. He was the first to use a semiconductor detector, and invented many devices used in microwave communication. See http://www.calcuttaweb.com/people/jcbose.shtml -- Ron DeBlock N2JSO If God had meant for Man to see the sunrise, He would have scheduled it later in the day. |
In article ,
Al A. wrote: On Wed, 13 Jul 2005 15:35:36 -0500, "Robert Swinney" wrote: I recall reading that early watt-hour meters were electrolytic devices. Not sure how they worked, though. Maybe someone can help. Boib Swinney I may not remeber this 100% correctly, but I seem to recall reading that at one point, one type of meter was a sort of electrolytic cell with copper bars in it, in which as the customer drew power from the line, it would cause material to be plated onto the copper bars. Periodically, the "meter reader" would drop by and weigh the rods to determine how much to bill the customer. Drawing a blank on the details and source, so this could be all wrong. G This sounds believable -- at least for a DC supply. AC would plate things back and forth at 1/120th second intrevals (here in the USA), or at 1/100th second intervals in the UK. Wasn't it Westinghouse who was the proponent of the DC power distribution system, and Tesla the proponent of AC distribution? And, as another followup mentioned, there were tiny hours-of-operation meters which worked on this principle -- back in the 1970s, IIRC. I had some of them at work, for certain projects. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
"DoN. Nichols" wrote in message
... Wasn't it Westinghouse who was the proponent of the DC power distribution system, and Tesla the proponent of AC distribution? Nah, Edison was DC. Westinghouse bought rights to Tesla's patents and employed him. I recall soon after Tesla arrived, he was digging ditches for Edison; I don't remember if he did anything technical. I know he didn't like Tom and his big interest in DC. g Tim -- "California is the breakfast state: fruits, nuts and flakes." Website: http://webpages.charter.net/dawill/tmoranwms |
In article , Ron DeBlock says...
Jagadish Chandra Bose, an Indian physicist, *ding* A winner. I think Hertz's experiments were before that however. Jim -- ================================================== please reply to: JRR(zero) at pkmfgvm4 (dot) vnet (dot) ibm (dot) com ================================================== |
In article , DoN. Nichols says...
Wasn't it Westinghouse who was the proponent of the DC power distribution system, and Tesla the proponent of AC distribution? Ah, no. The big fight was Edison against everyone else. Edison wire lower manhattan for DC distribution early on and continually pushed against AC. Eventually Edison Electric was bought out by westinghouse IIRC, and became General Electric (GE). Jim -- ================================================== please reply to: JRR(zero) at pkmfgvm4 (dot) vnet (dot) ibm (dot) com ================================================== |
jim rozen wrote:
Edison wire lower manhattan for DC distribution early on and continually pushed against AC. .... and having roadshows that "demonstrated" how harmfull and dangerous AC is. He paid a litte money to the local heroes err... boys to bring him some dogs that were then electrocuted in the public with AC. Nick -- Motormodelle / Engine Models: http://www.motor-manufaktur.de Ellwe 2FB * VTM 87 * DLM-S3a * cubic more to come ... |
In article , DoN. Nichols
wrote: In article , Al A. wrote: On Wed, 13 Jul 2005 15:35:36 -0500, "Robert Swinney" wrote: I recall reading that early watt-hour meters were electrolytic devices. Not sure how they worked, though. Maybe someone can help. Boib Swinney I may not remeber this 100% correctly, but I seem to recall reading that at one point, one type of meter was a sort of electrolytic cell with copper bars in it, in which as the customer drew power from the line, it would cause material to be plated onto the copper bars. Periodically, the "meter reader" would drop by and weigh the rods to determine how much to bill the customer. Drawing a blank on the details and source, so this could be all wrong. G This sounds believable -- at least for a DC supply. AC would plate things back and forth at 1/120th second intrevals (here in the USA), or at 1/100th second intervals in the UK. Wasn't it Westinghouse who was the proponent of the DC power distribution system, and Tesla the proponent of AC distribution? Edison for DC power. Big fights with Tesla, he actually employed Tesla at one stage, IIRC, to do some work on synchronising DC gen sets. PDW |
""Nick Müller"" wrote in message ... jim rozen wrote: Edison wire lower manhattan for DC distribution early on and continually pushed against AC. ... and having roadshows that "demonstrated" how harmfull and dangerous AC is. He paid a litte money to the local heroes err... boys to bring him some dogs that were then electrocuted in the public with AC. Nick -- He even did an elephant or two along with cats. PETA would love him! Lane |
Robert Swinney wrote: Jim sez: "Coherers are not electrolytic, they use powdered metal filings which stick together (cohere) under the influence of applied rf energy. There is good reason to believe that while marconi developed the coherer into a relatively well-funtioning product, he did not invent it." Reginald Fessenden invented the electrolytic detector which is probably the 'liquid diode' mentioned above." My mistake Jim. The key point is that Marconi developed a way to detect (demod) RF whereas Tesla may have been among the first to generate RF. I think it is safe to say Marconi perfected wireless transmission of telegraph signals. Thanx for the correction on Fessenden's liquid diode. I recall reading that early watt-hour meters were electrolytic devices. Not sure how they worked, though. Maybe someone can help. Boib Swinney I would suggest you read the Tesla book I mentioned and find out what really happened in regards to Marconi. It's very well covered. Marconi lost the major patent law suits to Tesla until the U.S. government in a time or war..... It's in the book. :) jon |
DoN. Nichols wrote: In article , Al A. wrote: On Wed, 13 Jul 2005 15:35:36 -0500, "Robert Swinney" wrote: I recall reading that early watt-hour meters were electrolytic devices. Not sure how they worked, though. Maybe someone can help. Boib Swinney I may not remeber this 100% correctly, but I seem to recall reading that at one point, one type of meter was a sort of electrolytic cell with copper bars in it, in which as the customer drew power from the line, it would cause material to be plated onto the copper bars. Periodically, the "meter reader" would drop by and weigh the rods to determine how much to bill the customer. Drawing a blank on the details and source, so this could be all wrong. G This sounds believable -- at least for a DC supply. AC would plate things back and forth at 1/120th second intrevals (here in the USA), or at 1/100th second intervals in the UK. Wasn't it Westinghouse who was the proponent of the DC power distribution system, and Tesla the proponent of AC distribution? And, as another followup mentioned, there were tiny hours-of-operation meters which worked on this principle -- back in the 1970s, IIRC. I had some of them at work, for certain projects. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- Wasn't it Westinghouse who was the proponent of the DC power distribution system, and Tesla the proponent of AC distribution? Very early on Westinghouse understood the huge advantage of Tesla's polyphase AC system. Westinghouse was awarded the contract for turning Niagara Falls into a major AC power provider based on Tesla's patents. It was Edison who pushed DC power and portrayed AC power as very dangerous. jon |
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"jon_banquer" wrote in message oups.com... Robert Swinney wrote: Jim sez: "Coherers are not electrolytic, they use powdered metal filings which stick together (cohere) under the influence of applied rf energy. There is good reason to believe that while marconi developed the coherer into a relatively well-funtioning product, he did not invent it." Reginald Fessenden invented the electrolytic detector which is probably the 'liquid diode' mentioned above." My mistake Jim. The key point is that Marconi developed a way to detect (demod) RF whereas Tesla may have been among the first to generate RF. I think it is safe to say Marconi perfected wireless transmission of telegraph signals. Thanx for the correction on Fessenden's liquid diode. I recall reading that early watt-hour meters were electrolytic devices. Not sure how they worked, though. Maybe someone can help. Boib Swinney I would suggest you read the Tesla book I mentioned and find out what really happened in regards to Marconi. It's very well covered. Marconi lost the major patent law suits to Tesla until the U.S. government in a time or war..... It's in the book. :) The REAL battle came later....between Edison and Westinghouse, and in the end, it was influenced very heavily by ( of all things ) the Electric Chair. -- SVL |
jon banquer wrote:
I will have to check that book out. Thanks for the heads up. This is my only book about Tesla. If you know already some, maybe it won't have that much new. It's focus is more on the commercial side of Tesla. Not so much focus that it gets boaring (I'm not at all a salesman), but just enough to see what he made wrong and how he got ripped every now and then. Still his inventions and his life are the biggest part of the book. Really nice to read. Nick -- Motormodelle / Engine Models: http://www.motor-manufaktur.de Ellwe 2FB * VTM 87 * DLM-S3a * cubic more to come ... |
On Thu, 14 Jul 2005 18:26:28 -0700, "PrecisionMachinisT"
wrote: the Electric Chair Thinking of jb again? -- Cliff |
On 14 Jul 2005 17:02:03 -0700, "jon_banquer"
wrote: I believe the Wardenclyffe site should be preserved and the tower rebuilt. That it has not been done already is IMO quite sad. Having reading comprehension issues again? IIRC Tesla tore it down & destroyed any plans. Not in your book? LOL ... -- Cliff |
And yet it was many years before AC would become popular as a use for
cooking meat (prepared, not on the hoof). The wonderful Presto "Hot Dogger" was a cute little countertop cooking device that electrocuted dogs. I used to see these in the 60s. WB ............... "Nick Müller" wrote in message ... jim rozen wrote: Edison wire lower manhattan for DC distribution early on and continually pushed against AC. ... and having roadshows that "demonstrated" how harmfull and dangerous AC is. He paid a litte money to the local heroes err... boys to bring him some dogs that were then electrocuted in the public with AC. Nick -- Motormodelle / Engine Models: http://www.motor-manufaktur.de Ellwe 2FB * VTM 87 * DLM-S3a * cubic more to come ... ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
"Nick Müller" wrote in message
... that it gets boaring *snort snoort* *squeeeeeeeee!* Tim gd,r -- "California is the breakfast state: fruits, nuts and flakes." Website: http://webpages.charter.net/dawill/tmoranwms |
In article .com, jon_banquer
says... I would suggest you read the Tesla book I mentioned and find out what really happened in regards to Marconi. It's very well covered. Marconi lost the major patent law suits to Tesla until the U.S. government in a time or war..... American Marconi ceased to exist after ww1. This was basically by agreement of all parties concerned. The end result of this was RCA, a corporation that was conceived of and created pretty much out of whole cloth by US government regulators. The point was that at the time, the US had no reliable means to communicate with europe besides some sketchy, vulnerable translantic cables. Other than, the alexanderson alternators that were owned by marconi co. Foreign ownership of infrastructure like that was unacceptable to the government. But IIRC everyone came away from the deal happy. Jim -- ================================================== please reply to: JRR(zero) at pkmfgvm4 (dot) vnet (dot) ibm (dot) com ================================================== |
"Tom Accuosti" wrote in message ink.net... wrote: I saw a documentary on Tesla some months ago.......If I recall correctly, it was stated that Tesla was to receive a royalty of something like $2 for every horsepower of electrical motors produced (by Westinghouse or some other firm)......I think the contract was changed or never signed......If it was true and ever took place, the wealth of Tesla would probably make Bill Gates look like a pauper in comparison........ And let's not forget the wireless transmission of electricity. Oh, and the "death rays". And the earthquake machine. Where's John S - he's probably got all this memorized. Tom, Ahhh counting cards in Vegas! with my new invention, I call it the Yul Brynner West World disguise for built-in compized Cowboy hat. Lets see this thingy works in conjunct with that thingy, a pair of cool hand luke plasma display sun glasses don't you know. Image recognition that kind a thing when the computer calculates up a bet to produce a high or low to wager, which results taken to an onboard screen shot heads up on Luke. AFAIK, a charged-particle beam weapon that could also transmit power from LEO solar farm high above stationary earth to a ground based collector is one other likely scenario. John |
On Sat, 16 Jul 2005 11:59:45 -0500, "John Scheldroup"
wrote: AFAIK, a charged-particle beam weapon that could also transmit power from LEO solar farm high above stationary earth to a ground based collector is one other likely scenario. Actually, the sun emits lots of radio waves ... and you can set up an antenna and use a bridge rectifier .... Even better, usually, is a tuned circuit with tuned antenna for 60 or 120 Hz (probably mostly US technology only). -- Cliff |
Robert Swinney wrote:
Yes, I've read a lot of stuff on Tesla. He was misunderstood and not given the praise that he should have recieved. A true genius! The same is true for Philo Taylor Farnsworth! Abrasha http://www.abrasha.com |
"Abrasha" wrote in message ... Robert Swinney wrote: Yes, I've read a lot of stuff on Tesla. He was misunderstood and not given the praise that he should have recieved. A true genius! The same is true for Philo Taylor Farnsworth! Abrasha http://www.abrasha.com Yes I agree. From plowing a field to TV. Who'd-ah-thunk! Lane |
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