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Topic: OT: Tech Nerd Thread

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Cincydawg

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Re: OT: Tech Nerd Thread
« Reply #560 on: July 23, 2026, 04:32:41 PM »
I bought a $52 keyboard for my iPad.  It works ... OK.  It's not dramatically better.  But it was cheap.
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utee94

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Re: OT: Tech Nerd Thread
« Reply #561 on: July 24, 2026, 09:48:01 AM »
Quote from: 847badgerfan on July 23, 2026, 10:15:55 AM
Intel vs. AMD? Intell is $679 with half of the storage than the AMD has. AMD is $599.

[img width=500 height=208.976]https://i.imgur.com/5VahPXe.png[/img]

oops sorry didn't see this the other day.

I'd go with the AMD system.  The CPUs are spec'd about the same, and you get more storage on the AMD.  The Intel system does use DDR5 memory which is newer and "better" but I doubt you will be running any applications where it will matter.

Save yourself some money, especially if you're getting two!
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847badgerfan

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Re: OT: Tech Nerd Thread
« Reply #562 on: July 24, 2026, 09:54:44 AM »
Thanks!
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U RAH RAH! WIS CON SIN!

Cincydawg

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Re: OT: Tech Nerd Thread
« Reply #563 on: July 24, 2026, 10:19:14 AM »
My most recent book which I just edited to final (?) is "in the cloud".  I was trying to email it to kids, and it didn't work.  I converted to pdf maybe and hopefully that works?

I wanted to save it to my HD and didn't see how.

This cloud thing is pretty new to me.  I thought clouds were water vapor and tiny droplets of water.
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utee94

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Re: OT: Tech Nerd Thread
« Reply #564 on: July 24, 2026, 10:21:41 AM »
Quote from: Cincydawg on July 24, 2026, 10:19:14 AM
My most recent book which I just edited to final (?) is "in the cloud".  I was trying to email it to kids, and it didn't work.  I converted to pdf maybe and hopefully that works?

I wanted to save it to my HD and didn't see how.

This cloud thing is pretty new to me.  I thought clouds were water vapor and tiny droplets of water.
Lot easier to do stuff like that on a PC versus a tablet.  badgerfan seems to be in a buying mood, maybe he'll pick an extra one up for you whilst the taxes are exempt. ;)

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Cincydawg

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Re: OT: Tech Nerd Thread
« Reply #565 on: July 24, 2026, 10:24:23 AM »
Yeah, I work on my PC (Dell).  The keyboad is much better of course.  I use Word 365 which went to this subscription model which I loathe.

My book is mostly about my experiences at work, and some in grad school.  Basically, Dilbert, without the cartoons.
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betarhoalphadelta

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Re: OT: Tech Nerd Thread
« Reply #566 on: July 24, 2026, 10:38:18 AM »
Quote from: Cincydawg on July 24, 2026, 10:19:14 AM
My most recent book which I just edited to final (?) is "in the cloud".  I was trying to email it to kids, and it didn't work.  I converted to pdf maybe and hopefully that works?

I wanted to save it to my HD and didn't see how.

This cloud thing is pretty new to me.  I thought clouds were water vapor and tiny droplets of water.
Simplest way to understand the cloud...


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betarhoalphadelta

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Re: OT: Tech Nerd Thread
« Reply #567 on: July 24, 2026, 10:50:41 AM »

Quote from: MikeDeTiger on July 24, 2026, 09:34:14 AM
I don't at all understand how wireless charging works. 
It's actually quite simple. 


In the wireless charger, you have a coil. When you run an alternating current through a coil, it generates an alternating magnetic field. 

In the phone, you have another coil. When it is placed in close proximity to that alternating magnetic field, that field generates an electrical current in the coil. 

That electrical current in the coil is then used by the phone to charge. 

So on one end you're using electricity from the wall to generate a magnetic field, and then on the other end you're using that magnetic field to generate electricity. It's just transforming one type of energy into another, and then back again. 

The interplay between electricity and magnetism is how electric motors work, how hydroelectric dams work, how gas generators work, etc. Strange and wonderful things can happen when electricity and magnetism interact :57:
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utee94

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Re: OT: Tech Nerd Thread
« Reply #568 on: July 24, 2026, 11:08:02 AM »
Quote from: betarhoalphadelta on July 24, 2026, 10:50:41 AM
It's actually quite simple.


In the wireless charger, you have a coil. When you run an alternating current through a coil, it generates an alternating magnetic field.

In the phone, you have another coil. When it is placed in close proximity to that alternating magnetic field, that field generates an electrical current in the coil.

That electrical current in the coil is then used by the phone to charge.

So on one end you're using electricity from the wall to generate a magnetic field, and then on the other end you're using that magnetic field to generate electricity. It's just transforming one type of energy into another, and then back again.

The interplay between electricity and magnetism is how electric motors work, how hydroelectric dams work, how gas generators work, etc. Strange and wonderful things can happen when electricity and magnetism interact :57:

My picture was a lot less wordy... ;)
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betarhoalphadelta

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Re: OT: Tech Nerd Thread
« Reply #569 on: July 24, 2026, 11:15:57 AM »
Quote from: utee94 on July 24, 2026, 11:08:02 AM
My picture was a lot less wordy... ;)
Hmm... I never saw the picture. I was wondering why you responded to MDT with an empty post lol...
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Cincydawg

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Re: OT: Tech Nerd Thread
« Reply #570 on: July 24, 2026, 11:19:31 AM »
The inductive cooktops are somewhat/pretty similar.  The current induces resistance in something ferrometallic in your pan.  You can boil water in a pot with an ice cube sitting next to it.  Our unit groans when you put it on HIGH.  And it boils water faster than gas.  We love'em.  

The buyer's house inspector said our range didn't work because he turned it on and it blinked and then turned off.  He was an idiot.  I'd guess they replaced that cooktop.

What is an Induction Cooktop and How Does it Work? | KitchenAid

I mentioned before the concept of putting coils in pavement on streets with EVs able to recharge as they drive.  Some concepts have been built, but EVs currently can't use them.  And the losses can be significant.
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betarhoalphadelta

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Re: OT: Tech Nerd Thread
« Reply #571 on: July 24, 2026, 11:31:27 AM »
Quote from: Cincydawg on July 24, 2026, 11:19:31 AM
I mentioned before the concept of putting coils in pavement on streets with EVs able to recharge as they drive.  Some concepts have been built, but EVs currently can't use them.  And the losses can be significant.
I've said before that IMHO I don't think it'll ever be efficient enough to be economically feasible.

However if electric robotaxis ever actually become a thing, I could see wireless charging potentially making sense. One of the things with these robotaxis is "where will they charge?", and one limiting factor of that is that wherever they charge, you need someone there to plug them in. And if you have to pay a human attendant, you need enough charging spots in each location to justify their salary. 

If you could make wireless charging stations placed throughout a city, the cars could automatically drive there, park above the inductive charger, get topped off, and drive away with no human intervention. Not requiring an attendant would make it easier to have a larger number of fewer-pad charging stations and they could be placed more easily throughout a city if you only need a couple of spots per location. 
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Cincydawg

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Re: OT: Tech Nerd Thread
« Reply #572 on: July 24, 2026, 12:04:47 PM »
One notion is to have this in parking places and the EV would lower a sheet of metal to make contact.  
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utee94

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Re: OT: Tech Nerd Thread
« Reply #573 on: July 24, 2026, 12:25:53 PM »
Quote from: betarhoalphadelta on July 24, 2026, 11:15:57 AM
Hmm... I never saw the picture. I was wondering why you responded to MDT with an empty post lol...
Ah, looks like your firewall blocks images at random, same as mine.
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