🎓 Dr. Freemo 🇳🇱 @freemo@social.cleverlibre.org

@thor Think of it in terms of speed-of-light delay.. an electron can know what is terminating the far end (a resistor, open, short) until the electron (or rather the 3wave of energy through the electrons) physically gets to that point, and then transmitts that information back to the feedpoint somehow.

So any wire **must** act like a wire capable of conducting and identical to any other wire regardless of what lies at the far end... at least as long as the speed of light would take to go both ways. After that then things can change...

@thor yea for electronic components they are a bit pricey.. but nothing you cant afford in a prototype or two. Just may not be the cheapest for mass production is all.

@thor If your simplification were true then an empty capacitor wouldnt momentarily act as a short circuit when power is first applied.

@thor Most opamps are designed for operations well below RF frequencies.. but there are high-frequency op-amps and we use them all the time.

@thor picturing it as waves sloshing back and forth is entierly accurate.

In fact in early computers memory (on the order of bits) was done via physical delay lines where 1s and 0s were represented as waves in a pool of mercury. If the ends of the tank werent perfectly calibrated to match it youd get reflections and your data would degrade.

Can you imagine being the guy with the screw driver who was like "Oh shit my computer broke again, gotta readjust the sprints in my liquid tank of mercury based memory"

@thor Op amps are used all the time.

Attached is an RF design that goes up to UHF frequencies that I did that has 3 op-amps int he design all for different purposes.

https://qoto.org/@freemo/104793170211640131

@thor Yup, its how we discovered most of the critical math to make RF possible.

They even thought they could fix it with higher voltages, idiots just burnt the line up.

@thor yea absolutely. The math is largely the same you just ignore variables that wont be significant at audio scales.

I often liken it to classical physics vs quantum physics... the physics are the smae its just you can ignore 90% of the nuance when the scale is zoomed out enough

@thor analog is analog... a great deal is the same, in fact you could argue they are identical and the only real differences we see are one of emergency phenomenon at scale.

If you built audio circuits at the scale of a planet it would have many of the same difficulties as RF.

@thor I havent done too much with VCO for music.. but sounds reasonable.

@lucifargundam

Pssshhh they got ejection seats, their fine!

@rdaily

@ned

The fact that cheerleaders dont usually get attacked or maginalized is not really an excuse to attack or marginalize them... However women do, all the time, get attacked as "sexualizing" for what they wear, doing so here to cheerleaders is not the direction anyone in this movement should want to go IMO.

If thge meme came across as "cheerleaders are perfectly normal and non-sexualizing"... sure I'd have no problem with that... the message I got was "Cheerleaders are sexualizing children more than Drag queens, therefore they should be targeted as sexualizing long before drag queens even come up"

@lucifargundam

I mean the pistol I just bought is 112 year old design yet its still one of the best I own.. Im not an expert on fighter jets but I'd imagine there is still a place for the older ones in certain scenarios.

@rdaily

@thor

::eyes you suspiciously::

@thor

What he probably meant is you cant have a VCO that runs directly off a battery since the voltage of a battery isnt fixed.

A VCO off a battery is perfectly fine so long as you fix the voltage in a way that is source-independent.

@thor

You: Hey look I built a transmitter

Them: Ummm, thats just a low power EMP/jammer

You: Isnt that what I just said?

@ned And you do realize I completely agree with your stance and find the attacks on the LGBTQ and drag queens deplorable and wrong. I support your objective here to call that out.

But throwing other women under the bus in an effort to do that is **not** the way to go about it.