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| From | moroney@world.std.spaamtrap.com (Michael Moroney) |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: Spectrum Of Antimatter Observed For First Time |
| Date | 2017-01-13 20:02 +0000 |
| Organization | The World : www.TheWorld.com : Since 1989 |
| Message-ID | <o5bboi$6bq$2@pcls7.std.com> (permalink) |
| References | (5 earlier) <o56tbv$gck$1@pcls7.std.com> <412676bd-5862-4295-b6be-f42dba530d81@googlegroups.com> <o589kq$f1a$4@pcls7.std.com> <6eeaf77f-b005-4110-a75d-07562ba4eb38@googlegroups.com> <4a2374b4-4aa9-4aa4-875b-7d1409852d08@googlegroups.com> |
john <johnsefton288@gmail.com> writes: >Space >"as I recall, there is some thing that is funny >about the attribution of N and S polarity ... what was it? >" Yes, if you think about it. First, like repels like, opposites attract. Second, the north pole of a magnet was defined by the end which would point north when free to move (as in a compass). If you think about it, if opposites attract, that means that Earth's magnetic pole that's near the geographic north pole is a magnetic _south_ pole. And the magnetic pole in Antarctica is a magnetic north pole. >""In Franklin's time electricity was thought to be composed of two fluids, >"vitreous" and "resinous", that annihilated each other when they came into >contact. Franklin's clever idea was to realize that the two-fluid theory was >redundant, and that a single fluid flowing through metals would suffice. >This led him directly to an analogy with water pressure or air pressure, in >which a single fluid flows from the end of a pipe that has positive (+) >pressure, and towards the end with negative (-) or vacuum-like pressure. >It was only with the invention decades later of the Crookes tube that it >became possible to tell the direction of flow of this mysterious electrical >fluid, specifically by watching the shadows it cast on the inside of an empty >tube. Only then was it realized that the fluid that Franklin postulated >was moving from the "negative" pressure side (-) to the "positive" pressure >side, (+). But it was already too late. Decades of papers and textbooks >using Franklin's theory and conventions had already been written, and it >would have been a nightmare to attempt to flip the convention at that point."" One of the biggest problems I had in electrical engineering courses was how the current is defined as flowing from positive to negative. However, I initially learned of current as electron flow, which moves in the opposite direction. So I mentally had to reverse everything when going from standard current to electron flow and vice versa. Almost a form of induced dyslexia. Thanks, Ben! On the other hand, while Franklin guessed and guessed wrong, I vaguely remember something how there was a similar issue with simple sugar structure and naming. There was 16 possibilities but they happened to guess correctly.
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Re: Spectrum Of Antimatter Observed For First Time little brother <andronicus451@gmail.com> - 2017-01-11 07:44 -0800
Re: Spectrum Of Antimatter Observed For First Time john <johnsefton288@gmail.com> - 2017-01-11 08:08 -0800
Re: Spectrum Of Antimatter Observed For First Time Odd Bodkin <bodkinodd@gmail.com> - 2017-01-11 17:34 -0600
Re: Spectrum Of Antimatter Observed For First Time moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-01-12 03:32 +0000
Re: Spectrum Of Antimatter Observed For First Time poraty350@gmail.com - 2017-01-11 22:25 -0800
Re: Spectrum Of Antimatter Observed For First Time john <johnsefton288@gmail.com> - 2017-01-12 02:54 -0800
Re: Spectrum Of Antimatter Observed For First Time moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-01-12 16:07 +0000
Re: Spectrum Of Antimatter Observed For First Time Odd Bodkin <bodkinodd@gmail.com> - 2017-01-12 10:11 -0600
Re: Spectrum Of Antimatter Observed For First Time john <johnsefton288@gmail.com> - 2017-01-12 09:21 -0800
Re: Spectrum Of Antimatter Observed For First Time moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-01-12 19:14 +0000
spectrum of wavingstuff noTthaTguY <abu.kuanysh05@gmail.com> - 2017-01-12 11:40 -0800
Re: Spectrum Of Antimatter Observed For First Time john <johnsefton288@gmail.com> - 2017-01-12 11:54 -0800
Re: Spectrum Of Antimatter Observed For First Time moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-01-13 02:47 +0000
Re: Spectrum Of Antimatter Observed For First Time john <johnsefton288@gmail.com> - 2017-01-13 03:20 -0800
Re: Spectrum Of Antimatter Observed For First Time moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-01-13 19:44 +0000
Re: Spectrum Of Antimatter Observed For First Time noTthaTguY <abu.kuanysh05@gmail.com> - 2017-01-12 10:29 -0800
Re: Spectrum Of Antimatter Observed For First Time john <johnsefton288@gmail.com> - 2017-01-12 11:29 -0800
Re: Spectrum Of Antimatter Observed For First Time benj <benj@nobody.net> - 2017-01-12 17:45 -0500
Re: Spectrum Of Antimatter Observed For First Time thugstyle103@gmail.com - 2017-01-13 09:30 -0800
Re: Spectrum Of Antimatter Observed For First Time moroney@world.std.spaamtrap.com (Michael Moroney) - 2017-01-13 20:02 +0000
magneto ... man thugstyle103@gmail.com - 2017-01-13 18:05 -0800
Re: Spectrum Of Antimatter Observed For First Time noTthaTguY <abu.kuanysh05@gmail.com> - 2017-01-11 11:06 -0800
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