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Learning aid - OhmsLaw.pdf
1 Attachment(s)
Same as posted a few years ago.
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Learning aid - OhmsLaw.pdf
SuperM wrote:
Same as posted a few years ago. I had a prof that referred to it as "Ohm's opinion" :-) |
Learning aid - OhmsLaw.pdf
cledus wrote:
SuperM wrote: Same as posted a few years ago. I had a prof that referred to it as "Ohm's opinion" :-) Did you get your money back? -- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida |
Learning aid - OhmsLaw.pdf
"cledus" wrote in message ... SuperM wrote: Same as posted a few years ago. I had a prof that referred to it as "Ohm's opinion" :-) The Theory of Ohm? |
Learning aid - OhmsLaw.pdf
On Fri, 27 Apr 2007 22:22:19 -0500, cledus Gave
us: SuperM wrote: Same as posted a few years ago. I had a prof that referred to it as "Ohm's opinion" :-) He wasn't very bright then, and neither are you if you hold to the same belief. Being inversely proportional, it IS a law. |
Learning aid - OhmsLaw.pdf
In message , SuperM
SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org writes Same as posted a few years ago. [ A UUEncoded file (OhmsLaw.pdf) was included here. ] Very pretty, but looks overly complicated to me. Just remember that E = IxR and P = IxE. All the rest you can work out in a few seconds! Ian. -- |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 14:04:11 +0100, Ian Jackson
Gave us: In message , SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGal axy.org writes Same as posted a few years ago. [ A UUEncoded file (OhmsLaw.pdf) was included here. ] Very pretty, but looks overly complicated to me. Just remember that E = IxR and P = IxE. All the rest you can work out in a few seconds! Ian. It is hardly complicated. It is a learning tool for basic electronics students. Such students aren't immediately aware of all the transpositions. |
Learning aid - OhmsLaw.pdf
SuperM
SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote in : On Sat, 28 Apr 2007 14:04:11 +0100, Ian Jackson Gave us: In message , SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGa laxy.org writes Same as posted a few years ago. [ A UUEncoded file (OhmsLaw.pdf) was included here. ] Very pretty, but looks overly complicated to me. Just remember that E = IxR and P = IxE. All the rest you can work out in a few seconds! Ian. It is hardly complicated. It is a learning tool for basic electronics students. Such students aren't immediately aware of all the transpositions. One of those silly tricks I learned (from Popular Electronics?) for Ohm's Law, before I understood transposition: E=eagle I=Indian R=rabbit [R]abbit sees the eagle above the indian R=E/I [i]ndian sees the eagle above the rabbit I=E/R [E]agle sees the indian beside the rabbit E=IR Ken :) |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 09:40:37 -0500, Spehro Pefhany
Gave us: BTW, your file won't open with Acrobat 5, so I took the liberty of adjusting it so it does (attached). Nobody that uses adobe to read a pdf uses a reader as old as 5 anymore, except for complete idiots. Best regards, Spehro Pefhany Who the **** is "Georg Simon"? Sounds like someone that needs a shotgun load of salt in his ass. That's what farmers used to do when someone came on their property. Sounds like a valid "liberty" to me. |
Learning aid - OhmsLaw.pdf - OhmsLaw1.pdf
1 Attachment(s)
On Fri, 27 Apr 2007 21:41:50 -0700, the renowned SuperM
SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote: On Fri, 27 Apr 2007 22:22:19 -0500, cledus Gave us: SuperM wrote: Same as posted a few years ago. I had a prof that referred to it as "Ohm's opinion" :-) He wasn't very bright then, and neither are you if you hold to the same belief. Being inversely proportional, it IS a law. Assuming that resistance is constant with applied voltage, which is not always a sufficiently accurate guess. Being a high voltage guy, I'm sure you've run into voltage coefficient on resistors. BTW, your file won't open with Acrobat 5, so I took the liberty of adjusting it so it does (attached). Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 07:06:35 -0700, SuperM
SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote: On Sat, 28 Apr 2007 09:40:37 -0500, Spehro Pefhany Gave us: BTW, your file won't open with Acrobat 5, so I took the liberty of adjusting it so it does (attached). Nobody that uses adobe to read a pdf uses a reader as old as 5 anymore, except for complete idiots. Sure they do. Acrobat 7 is a fat-laden pile of crap. I only keep it around for when someone posts from that version. Anything I post generally comes from Acrobat 4... thus ANYONE can read it. SuperM? = Super Mouse ?:-) Best regards, Spehro Pefhany Who the **** is "Georg Simon"? Sounds like someone that needs a shotgun load of salt in his ass. You're the one who needs it. That's what farmers used to do when someone came on their property. Sounds like a valid "liberty" to me. ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
Learning aid - OhmsLaw.pdf
Do they even have rabbits and eagles in India?
I thought I would obfuscate, trivalize, and nitpick, before SuperMass could get to it. Snip |
Learning aid - OhmsLaw.pdf
Jim Thompson wrote:
On Sat, 28 Apr 2007 07:06:35 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote: Who the **** is "Georg Simon"? Sounds like someone that needs a shotgun load of salt in his ass. You're the one who needs it. I didn't know that **** and salt would mix. -- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida |
Learning aid - OhmsLaw.pdf
In message , Michael A. Terrell
writes cledus wrote: SuperM wrote: Same as posted a few years ago. I had a prof that referred to it as "Ohm's opinion" :-) Did you get your money back? I had a work colleague who did a bit of moonlighting, teaching electronics at night school. He tells the story of when, at the start of the one of his lessons, one of the students came up to him and said, in a pronounced Spanish accent, "Are we going to learn about Gomez' Law tonight?" [Gomez pronounced, of course, with a guttural 'H'.] Ian. -- |
Learning aid - OhmsLaw.pdf
Actually, it is Ohm's definition. Ohm merely made the observation that a
conductor placed across an electromotive source caused current to flow. He then DEFINED the resistance of that conductor to be the ratio of the emf to the current, or R = E/I. Both of the other basic forms (E = I*R and I = E/R) are algebraic manipulations of the "law". Jim "cledus" wrote in message ... SuperM wrote: Same as posted a few years ago. I had a prof that referred to it as "Ohm's opinion" :-) |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 06:14:13 -0700, SuperM
SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote: On Sat, 28 Apr 2007 14:04:11 +0100, Ian Jackson Gave us: In message , SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGa laxy.org writes Same as posted a few years ago. [ A UUEncoded file (OhmsLaw.pdf) was included here. ] Very pretty, but looks overly complicated to me. Just remember that E = IxR and P = IxE. All the rest you can work out in a few seconds! Ian. It is hardly complicated. It is a learning tool for basic electronics students. Such students aren't immediately aware of all the transpositions. But the "transpositions" are junior-high algebra. John |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 15:58:28 GMT, "Michael A. Terrell"
wrote: Jim Thompson wrote: On Sat, 28 Apr 2007 07:06:35 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote: Who the **** is "Georg Simon"? Sounds like someone that needs a shotgun load of salt in his ass. You're the one who needs it. I didn't know that **** and salt would mix. Caliche ?:-) ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | America: Land of the Free, Because of the Brave |
Learning aid - OhmsLaw.pdf
Ian Jackson wrote:
I had a work colleague who did a bit of moonlighting, teaching electronics at night school. He tells the story of when, at the start of the one of his lessons, one of the students came up to him and said, in a pronounced Spanish accent, "Are we going to learn about Gomez' Law tonight?" [Gomez pronounced, of course, with a guttural 'H'.] I would have told him the TV production class was in another building, but it no longer used the "Addams Family" as class material. -- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida |
Learning aid - OhmsLaw.pdf
Jim Thompson wrote:
On Sat, 28 Apr 2007 15:58:28 GMT, "Michael A. Terrell" wrote: Jim Thompson wrote: On Sat, 28 Apr 2007 07:06:35 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote: Who the **** is "Georg Simon"? Sounds like someone that needs a shotgun load of salt in his ass. You're the one who needs it. I didn't know that **** and salt would mix. Caliche ?:-) ??? A white crystalline compound, NaNO3, used in solid rocket propellants, in the manufacture of explosives and glass and pottery enamel, and as fertilizer. Also called caliche, Chile saltpeter, saltpeter, soda niter. -- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 07:51:50 -0700, Jim Thompson
wrote: On Sat, 28 Apr 2007 07:06:35 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGal axy.org wrote: On Sat, 28 Apr 2007 09:40:37 -0500, Spehro Pefhany Gave us: BTW, your file won't open with Acrobat 5, so I took the liberty of adjusting it so it does (attached). Nobody that uses adobe to read a pdf uses a reader as old as 5 anymore, except for complete idiots. Sure they do. Acrobat 7 is a fat-laden pile of crap. I only keep it around for when someone posts from that version. Anything I post generally comes from Acrobat 4... thus ANYONE can read it. ...Jim Thompson Use cutepdf to make'em, and foxit reader to display'em. Both are free, and you'll be amazed at how clean and fast they are, if you're used to the flakey, bloated Adobe crap. I keep Adobe Reader 8 around just for the rare case that something exotic is present. John |
Learning aid - OhmsLaw.pdf
Michael A. Terrell wrote:
cledus wrote: SuperM wrote: Same as posted a few years ago. I had a prof that referred to it as "Ohm's opinion" :-) Did you get your money back? It's sort of interesting that the linearity of resistance is primarily a material property, whereas the linearity of reactance is primarily due to the linearity of Maxwell's equations (ferromagnets apart). Cheers, Phil Hobbs |
Learning aid - OhmsLaw.pdf
"John Larkin" wrote in message ... On Sat, 28 Apr 2007 07:51:50 -0700, Jim Thompson wrote: On Sat, 28 Apr 2007 07:06:35 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGal axy.org wrote: On Sat, 28 Apr 2007 09:40:37 -0500, Spehro Pefhany Gave us: BTW, your file won't open with Acrobat 5, so I took the liberty of adjusting it so it does (attached). Nobody that uses adobe to read a pdf uses a reader as old as 5 anymore, except for complete idiots. Sure they do. Acrobat 7 is a fat-laden pile of crap. I only keep it around for when someone posts from that version. Anything I post generally comes from Acrobat 4... thus ANYONE can read it. ...Jim Thompson Use cutepdf to make'em, and foxit reader to display'em. Both are free, and you'll be amazed at how clean and fast they are, if you're used to the flakey, bloated Adobe crap. I keep Adobe Reader 8 around just for the rare case that something exotic is present. John I use Foxit at home and work. It even prints comments properly! It's generally very fast. Sometimes Adobe leaves blank pages, where as Foxit shows them. One that comes to mind is an Atmel ATMEGA datasheet, perhaps the 128, where the pinout does not show up with Adobe! I keep adobe reader 5 for the odd document. |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 17:38:04 GMT, Phil Hobbs
wrote: Michael A. Terrell wrote: cledus wrote: SuperM wrote: Same as posted a few years ago. I had a prof that referred to it as "Ohm's opinion" :-) Did you get your money back? It's sort of interesting that the linearity of resistance is primarily a material property, whereas the linearity of reactance is primarily due to the linearity of Maxwell's equations (ferromagnets apart). Which means that resistance isn't truly linear, whereas reactance can be. So Maxwell made laws, but Ohm didn't. Aside from all the temperature and Hall and voltage coefficient stuff, does pure carrier density modulate conductivity in metallic conductors? You know, some vaguely superconductor/phonon charge-interaction type effects? The shot noise thing implies charge interaction. John |
Learning aid - OhmsLaw.pdf
John Larkin wrote:
On Sat, 28 Apr 2007 17:38:04 GMT, Phil Hobbs wrote: Michael A. Terrell wrote: cledus wrote: SuperM wrote: Same as posted a few years ago. I had a prof that referred to it as "Ohm's opinion" :-) Did you get your money back? It's sort of interesting that the linearity of resistance is primarily a material property, whereas the linearity of reactance is primarily due to the linearity of Maxwell's equations (ferromagnets apart). Which means that resistance isn't truly linear, whereas reactance can be. So Maxwell made laws, but Ohm didn't. Aside from all the temperature and Hall and voltage coefficient stuff, does pure carrier density modulate conductivity in metallic conductors? You know, some vaguely superconductor/phonon charge-interaction type effects? The shot noise thing implies charge interaction. John Shot noise implies *no* interaction. To derive the shot noise formula, you start by assuming that the electrons arrive in a Poisson process--that their arrival times are uncorrelated. Most kinds of interaction between electrons (e.g. emitter degeneration in a BJT, or the Pauli principle in metals) tend to reduce the noise. An exception would be avalanche multiplication. Conductivity in metals depends mostly on scattering from and the band structure of the metal, iiuc. Cheers, Phil Hobbs |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 07:51:50 -0700, Jim Thompson
Gave us: On Sat, 28 Apr 2007 07:06:35 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGal axy.org wrote: On Sat, 28 Apr 2007 09:40:37 -0500, Spehro Pefhany Gave us: BTW, your file won't open with Acrobat 5, so I took the liberty of adjusting it so it does (attached). Nobody that uses adobe to read a pdf uses a reader as old as 5 anymore, except for complete idiots. Sure they do. Acrobat 7 is a fat-laden pile of crap. I only keep it around for when someone posts from that version. Read it again, dip****. I am talking about the reader, not the full product. Not only that, dumb****, but it authored with 6, not 7. Your brain is a fat-laden, quick to jump the gun pile of crap. READ BEFORE you spew, idiot. Anything I post generally comes from Acrobat 4... thus ANYONE can read it. Whatever. I don't have an authoring tool that old. SuperM? = Super Mouse ?:-) More retarded baby bull**** from you. Do you ever stop? Best regards, Spehro Pefhany Who the **** is "Georg Simon"? Sounds like someone that needs a shotgun load of salt in his ass. You're the one who needs it. Step on my property, and your the one that gets it. That's what farmers used to do when someone came on their property. Sounds like a valid "liberty" to me. ...Jim Thompson, the total retard. Yes... you are. |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 15:58:28 GMT, "Michael A. Terrell"
Gave us: Jim Thompson wrote: On Sat, 28 Apr 2007 07:06:35 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote: Who the **** is "Georg Simon"? Sounds like someone that needs a shotgun load of salt in his ass. You're the one who needs it. I didn't know that **** and salt would mix. Step on my property uninvited and you'll find out, ****head. |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 09:02:49 -0700, "RST Engineering \(jw\)"
Gave us: Actually, it is Ohm's definition. Ohm merely made the observation that a conductor placed across an electromotive source caused current to flow. He then DEFINED the resistance of that conductor to be the ratio of the emf to the current, or R = E/I. Both of the other basic forms (E = I*R and I = E/R) are algebraic manipulations of the "law". The DEFINITION of the VOLT, and the AMPERE DEFINE what one OHM MUST be. |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 09:10:27 -0700, John Larkin
Gave us: On Sat, 28 Apr 2007 06:14:13 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGal axy.org wrote: On Sat, 28 Apr 2007 14:04:11 +0100, Ian Jackson Gave us: In message , SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayG alaxy.org writes Same as posted a few years ago. [ A UUEncoded file (OhmsLaw.pdf) was included here. ] Very pretty, but looks overly complicated to me. Just remember that E = IxR and P = IxE. All the rest you can work out in a few seconds! Ian. It is hardly complicated. It is a learning tool for basic electronics students. Such students aren't immediately aware of all the transpositions. But the "transpositions" are junior-high algebra. Basic electronics is also Junior high school level academia. But... but... but... your foot is in your mouth... again. |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 16:52:27 GMT, "Michael A. Terrell"
Gave us: Jim Thompson wrote: On Sat, 28 Apr 2007 15:58:28 GMT, "Michael A. Terrell" wrote: Jim Thompson wrote: On Sat, 28 Apr 2007 07:06:35 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote: Who the **** is "Georg Simon"? Sounds like someone that needs a shotgun load of salt in his ass. You're the one who needs it. I didn't know that **** and salt would mix. Caliche ?:-) ??? A white crystalline compound, NaNO3, used in solid rocket propellants, in the manufacture of explosives and glass and pottery enamel, and as fertilizer. Also called caliche, Chile saltpeter, saltpeter, soda niter. It's called Sodium Nitrate, dip****. One of the main ingredients in gunpowder, and also boot camp food service! http://www.jtbaker.com/msds/englishhtml/s4442.htm |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 10:33:51 -0700, John Larkin
Gave us: On Sat, 28 Apr 2007 07:51:50 -0700, Jim Thompson wrote: On Sat, 28 Apr 2007 07:06:35 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGa laxy.org wrote: On Sat, 28 Apr 2007 09:40:37 -0500, Spehro Pefhany Gave us: BTW, your file won't open with Acrobat 5, so I took the liberty of adjusting it so it does (attached). Nobody that uses adobe to read a pdf uses a reader as old as 5 anymore, except for complete idiots. Sure they do. Acrobat 7 is a fat-laden pile of crap. I only keep it around for when someone posts from that version. Anything I post generally comes from Acrobat 4... thus ANYONE can read it. ...Jim Thompson Use cutepdf to make'em, and foxit reader to display'em. Both are free, and you'll be amazed at how clean and fast they are, if you're used to the flakey, bloated Adobe crap. I keep Adobe Reader 8 around just for the rare case that something exotic is present. John The readers are not bloated (like your head is). The authoring tools MIGHT be argued as being so, but full blown apps these days typically are, and anyone that uses modern, up to date tools knows this simple, basic fact. You guys MIGHT be smart, but you take more time than the military bureaucracy does catching up with the rest of the world. |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 17:48:53 GMT, "Jeff L"
Gave us: "John Larkin" wrote in message .. . On Sat, 28 Apr 2007 07:51:50 -0700, Jim Thompson wrote: On Sat, 28 Apr 2007 07:06:35 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGal axy.org wrote: On Sat, 28 Apr 2007 09:40:37 -0500, Spehro Pefhany Gave us: BTW, your file won't open with Acrobat 5, so I took the liberty of adjusting it so it does (attached). Nobody that uses adobe to read a pdf uses a reader as old as 5 anymore, except for complete idiots. Sure they do. Acrobat 7 is a fat-laden pile of crap. I only keep it around for when someone posts from that version. Anything I post generally comes from Acrobat 4... thus ANYONE can read it. ...Jim Thompson Use cutepdf to make'em, and foxit reader to display'em. Both are free, and you'll be amazed at how clean and fast they are, if you're used to the flakey, bloated Adobe crap. I keep Adobe Reader 8 around just for the rare case that something exotic is present. John I use Foxit at home and work. It even prints comments properly! It's generally very fast. Sometimes Adobe leaves blank pages, where as Foxit shows them. One that comes to mind is an Atmel ATMEGA datasheet, perhaps the 128, where the pinout does not show up with Adobe! All you have to do is know how to set up the print job, and not rely on default settings all the time. You pushbutton boys crack me up. I keep adobe reader 5 for the odd document. Whatever.No wonder you can't utilize newer PDFs right, attempting to view and print them with old ****. |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 11:18:48 -0700, John Larkin
Gave us: Which means that resistance isn't truly linear, whereas reactance can be. So Maxwell made laws, but Ohm didn't. Oh boy... what a gem! |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 19:43:16 GMT, Phil Hobbs
Gave us: Conductivity in metals depends mostly on scattering from and the band structure of the metal, iiuc. Try that crap with carbon nanotubes! They have some very unique "metal like" properties, depending on how they get configured. Hahahahaha! Scientific American, this month's issues, as well as plenty of EE Times articles on the subject. |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 13:28:57 -0700, SuperM
SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote: On Sat, 28 Apr 2007 11:18:48 -0700, John Larkin Gave us: Which means that resistance isn't truly linear, whereas reactance can be. So Maxwell made laws, but Ohm didn't. Oh boy... what a gem! Ohm's law isn't a scientific "law" because it is never exactly true, and is often grossly untrue. Resistors cost more and more as they get closer to obeying E = I * R. You can spend kilobucks on a pretty good 1-ohm, 1/10 watt resistor. John |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 13:22:59 -0700, SuperM
SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote: A white crystalline compound, NaNO3, used in solid rocket propellants, in the manufacture of explosives and glass and pottery enamel, and as fertilizer. Also called caliche, Chile saltpeter, saltpeter, soda niter. It's called Sodium Nitrate, dip****. One of the main ingredients in gunpowder, and also boot camp food service! http://www.jtbaker.com/msds/englishhtml/s4442.htm Except that gunpowder is made with potassium nitrate, KNO3, not sodium nitrate. http://en.wikipedia.org/wiki/Potassium_nitrate "Potassium nitrate is the oxidising component of black powder." And the anti-aphrodisiac properties of saltpeter, KNO3, are an untrue urban legend. John |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 13:26:08 -0700, SuperM
SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGala xy.org wrote: On Sat, 28 Apr 2007 10:33:51 -0700, John Larkin Gave us: On Sat, 28 Apr 2007 07:51:50 -0700, Jim Thompson wrote: On Sat, 28 Apr 2007 07:06:35 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayG alaxy.org wrote: On Sat, 28 Apr 2007 09:40:37 -0500, Spehro Pefhany Gave us: BTW, your file won't open with Acrobat 5, so I took the liberty of adjusting it so it does (attached). Nobody that uses adobe to read a pdf uses a reader as old as 5 anymore, except for complete idiots. Sure they do. Acrobat 7 is a fat-laden pile of crap. I only keep it around for when someone posts from that version. Anything I post generally comes from Acrobat 4... thus ANYONE can read it. ...Jim Thompson Use cutepdf to make'em, and foxit reader to display'em. Both are free, and you'll be amazed at how clean and fast they are, if you're used to the flakey, bloated Adobe crap. I keep Adobe Reader 8 around just for the rare case that something exotic is present. John The readers are not bloated (like your head is). The authoring tools MIGHT be argued as being so, but full blown apps these days typically are, and anyone that uses modern, up to date tools knows this simple, basic fact. The setup file for Acrobat Reader 8 is 20.8 megabytes, a pretty serious download. The same thing for Foxit Reader is 1.66 megabytes. Foxit displays a pdf instantly; it's startling to anybody who is used to the Acrocrap Reader. And it doesn't lock up itself or a broswser or Windows, which the Adobe stuff does all the time. You guys MIGHT be smart, but you take more time than the military bureaucracy does catching up with the rest of the world. It's the Adobe crap that's old and creaky. Cutepdf is amazing. It acts like a printer driver and makes pdf's so fast that at first you think it's not working; it's done as soon as you click "print." And it's free. John |
Learning aid - OhmsLaw.pdf
SuperM wrote:
The DEFINITION of the VOLT, and the AMPERE DEFINE what one OHM MUST be. I agree. An ohm is defined as a volt per ampere. Linear resistance (constant ratio of voltage to current, regardless of the magnitude of either) is not an actual property of anything in nature, but an idealized concept that is approximated to varying degrees by various real materials. |
Learning aid - OhmsLaw.pdf
John Larkin wrote: Ohm's law isn't a scientific "law" because it is never exactly true, and is often grossly untrue. Resistors cost more and more as they get closer to obeying E = I * R. You can spend kilobucks on a pretty good 1-ohm, 1/10 watt resistor. John First you claim Ohm's Law doesn't work. Then you state "resistors cost more as they get closer to obeying E = I * R." LOL! That's Ohm's Law! So Ohm's Law is not broken. The difficulty lies in finding a perfect resistor. Regards, Mike Monett |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 16:57:19 -0700, John Larkin
Gave us: On Sat, 28 Apr 2007 13:28:57 -0700, SuperM SuperM@ssiveBlackHoleAtTheCenterOfTheMilkyWayGal axy.org wrote: On Sat, 28 Apr 2007 11:18:48 -0700, John Larkin Gave us: Which means that resistance isn't truly linear, whereas reactance can be. So Maxwell made laws, but Ohm didn't. Oh boy... what a gem! Ohm's law isn't a scientific "law" because it is never exactly true, and is often grossly untrue. Resistors cost more and more as they get closer to obeying E = I * R. You can spend kilobucks on a pretty good 1-ohm, 1/10 watt resistor. John http://www.precisionresistor.com/hr.htm Not "kilo-bucks". http://www.micro-ohm.com/filmprecision/pm.html Not kilo-bucks. Heres's a nice datasheet that has some good facts included... http://www.vishay.com/doc?49460 Stop babbling, John. It's a law, and you introducing variances is nothing more than an attempt to say that they don't weigh in, when you know they do. It still makes the law correct. Take whatever the "pure resistance" is at any instantaneous measure point in time, and the other factors fall in place when either the voltage or current is known. It is an absolute law. |
Learning aid - OhmsLaw.pdf
On Sat, 28 Apr 2007 17:03:59 -0700, John Larkin
Gave us: And the anti-aphrodisiac properties of saltpeter, KNO3, are an untrue urban legend. That hasn't stopped the military from putting it in the food at all boot camps for decades. And it isn't "anti-aphrodisiac", it is merely a suppressant for the urge. Whether it works via mental or physical (lack of erection) processes doesn't matter. |
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