AC versus DC, not the band, the electrical current!

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Tiredretiredlawyer
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AC versus DC, not the band, the electrical current!

#1

Post by Tiredretiredlawyer »

Hubby found this fun description of AC v. DC.

"Mickey Mouse and I grew up together." - Ruthie Tompson, Disney animation checker and scene planner and one of the first women to become a member of the International Photographers Union in 1952.
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AC versus DC, not the band, the electrical current!

#2

Post by Greatgrey »

Ya know, Edison wasn’t the only one to renig on promises to Tesla.

Westinghouse did too.
In Nikola Tesla's original contract with George Westinghouse, the inventor was promised a bonus of $2.50 for every horsepower of alternating current sold. But making Tesla's AC motor was expensive, and Westinghouse soon told Tesla he wouldn't be able to pay him what was originally promised.
https://www.pbs.org/wgbh/americanexperi ... -contract/
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AC versus DC, not the band, the electrical current!

#3

Post by Chilidog »

That's hilarious.

Bzzzzpt!!!!
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AC versus DC, not the band, the electrical current!

#4

Post by Foggy »

Dear Friends, in these days of modern times, when you can't tell the ACs from the DCs, well, aren't we all yearning for someone who can turn on a little stopping power? Dear friends, I mean a smoky glass? :batting:
🎶 We went for a ride,
We got outside,
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She wanted to dance ... 🎶
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AC versus DC, not the band, the electrical current!

#5

Post by W. Kevin Vicklund »

So this is basically what I do for a living (electrical engineer specializing in power systems working for a utility). I will note that there is a point at which ultra high voltage DC transmission becomes viable. There's also an issue for DC protective devices trying to clear a fault (I just presented a paper on a closely related topic last Friday*) that makes DC not as big an improvement as you might otherwise think.

So yeah, if you want to know more on this topic, hit me up.

*yes, I did my first paper presentation in over 20 years three days after my seizure to an international audience, and I wasn't even the primary author. No pressure.
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AC versus DC, not the band, the electrical current!

#6

Post by Tiredretiredlawyer »

This is "howcome" the question about AC v. DC came up.

https://www.treehugger.com/home-today-r ... nt-6752357
"Mickey Mouse and I grew up together." - Ruthie Tompson, Disney animation checker and scene planner and one of the first women to become a member of the International Photographers Union in 1952.
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AC versus DC, not the band, the electrical current!

#7

Post by keith »

Tiredretiredlawyer wrote: Thu Oct 20, 2022 9:42 am Hubby found this fun description of AC v. DC.

https ://m.youtube.com/watch?v=S7C5sSde9e4&feature=youtu.be
I love this guy's videos.
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AC versus DC, not the band, the electrical current!

#8

Post by W. Kevin Vicklund »

Tiredretiredlawyer wrote: Thu Oct 20, 2022 6:13 pm This is "howcome" the question about AC v. DC came up.

https://www.treehugger.com/home-today-r ... nt-6752357
Yeah, I'd been looking at the possibilities of this from an office building standpoint prior to my current job (though it could absolutely work in this environment), in particular linking it to onsite photovoltaic (rooftop solar, solar carports, and solar glass). Some of the lights in my basement use PoE. As with anything, there's limitations, but nothing prevents this from working and working quite well.
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AC versus DC, not the band, the electrical current!

#9

Post by tek »

for lighting it is reasonable, though cat5 is a silly sort of cable to do it with.

One assumes they are bussing, home runs of cat5 from every fixture would quickly get insane.

Not gonna run your air fryer on cat5, though.
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AC versus DC, not the band, the electrical current!

#10

Post by bill_g »

tek wrote: Fri Oct 21, 2022 6:45 am for lighting it is reasonable, though cat5 is a silly sort of cable to do it with.

One assumes they are bussing, home runs of cat5 from every fixture would quickly get insane.

Not gonna run your air fryer on cat5, though.
In Lloyd Alter's Treehugger World you don't air fry. He believes 200sf is enough living space. You wouldn't have a counter to put it on.
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AC versus DC, not the band, the electrical current!

#11

Post by bill_g »

Tiredretiredlawyer wrote: Thu Oct 20, 2022 9:42 am Hubby found this fun description of AC v. DC.

https: //m.youtube.com/watch?v=S7C5sSde9e4&feature=youtu.be
This guy is hilarious. Thanks!
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