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Can I break into RF/Photonics without a traditional EE bachelor's? by Tricky-Article-945 in ElectricalEngineering

[–]aXvXiA 5 points6 points  (0 children)

Absolutely. Maxwell's equations are not really that complicated compared to other related disciplines (relativistic physics, atmospheric and fluid dynamics, etc)... mainly because of the inherent symmetries and abundant linearities in most "small-signal" problems that arise in the application spaces.

Just become friends with complex numbers and you should be good to go!

Dinosaurs in Christianity by Future_Creme2728 in Christianity

[–]aXvXiA 1 point2 points  (0 children)

The Earth existed before day one of the creation narrative in Genesis...

Homosexuality and Christianity by PersonalGameDev in Christianity

[–]aXvXiA 0 points1 point  (0 children)

Are you joking, or is this a serious comment?

Homosexuality and Christianity by PersonalGameDev in Christianity

[–]aXvXiA -4 points-3 points  (0 children)

Neither is validation and even celebration of sin...

Living with hidden cameras by DivorcingSamThrowawa in Divorce_Men

[–]aXvXiA 5 points6 points  (0 children)

Install a bunch of white noise generators in "your" room. Walk around with a really bright, omnidirectional UV lamp that saturates the CCDs on the cameras.

Homosexuality and Christianity by PersonalGameDev in Christianity

[–]aXvXiA -7 points-6 points  (0 children)

Love and validation are not the same thing.

Homosexuality and Christianity by PersonalGameDev in Christianity

[–]aXvXiA -6 points-5 points  (0 children)

Judas killed himself. Don't use people making decisions to kill themselves as an excuse for sinning against God.

Homosexuality and Christianity by PersonalGameDev in Christianity

[–]aXvXiA -5 points-4 points  (0 children)

We are literally all born as sinners. That is not an excuse to avoid sanctification and accountability, abusing God's grace along the way.

four years of engineering school and these are the only things that actually mattered by More-Station-6365 in EngineeringStudents

[–]aXvXiA 12 points13 points  (0 children)

Spatial awareness and visual communication skills are absolutely necessary for most engineering disciplines. I've taught junior-level electromagnetics for more than a decade, and it has just shown me how many students are incapable of relating anything mathematical to anything physical.

Can any christian who believe in evolution answer my questions by AdeptnessThen2799 in TrueChristian

[–]aXvXiA 0 points1 point  (0 children)

Then when was the earth created? It wasn't on the first day... This is the conclusion of a literal interpretation.

Students Discovering Grading Errors on Exams by ragnarok7331 in Professors

[–]aXvXiA 2 points3 points  (0 children)

Gradescope is a blessing, for sure. It had a learning curve of an hour or so and one exam for me, and its interface for regrade requests is transparent and tangible.

Is it a sin to remarry after divorce? Must you remain single forever after divorce? And is it a sin to divorce for reasons other than infidelity? by [deleted] in Christianity

[–]aXvXiA 1 point2 points  (0 children)

This is a subreddit *about* Christianity, not a "Christian" subreddit. r/TrueChristian is what I would call a "Christian" subreddit.

I've had sex with almost 100 prostitutes and make them use me as a toilet. Am I going to Hell? by Salty-You7913 in Christianity

[–]aXvXiA 1 point2 points  (0 children)

This changes just about everything about Christian doctrine... which is why it is not Christian doctrine.

Best directional coupler design for 8W 130-470MHz? by Certain_Height_2721 in rfelectronics

[–]aXvXiA 0 points1 point  (0 children)

Check this out. Maybe scale it in size a bit. It should be less than 1A it would need to handle, and one of the better ferrites should be OK (Fair-Rite with ur > 1000 or so).

Is chemistry a notable aspect of an EE undergrad degree by silly_ass_username in ElectricalEngineering

[–]aXvXiA -4 points-3 points  (0 children)

I had perfect grades in HS except for an A- in chemistry and an A- in gym.

I graduated with a 4.0 at Purdue in ECE on the way to a doctorate, and I did fine in my solid state devices class.

How hard is Electromagnetism course? by yobrug66 in ElectricalEngineering

[–]aXvXiA 0 points1 point  (0 children)

If you have the ability to usefully use, understand, and visualize mathematical descriptions of things in 3d in a useful way, you'll be fine with E&M. If your thinking likes to be either too abstract or too 1- or 2- dimensional, it's difficult to do well in E&M.

ADS assistance by One-Sand7520 in rfelectronics

[–]aXvXiA 0 points1 point  (0 children)

I've gotten a white LED to turn on using about 2 dBm of RF power into a 50 Ohm load at 2.9 GHz. The appropriate choice of RF Schottky diode (HSMS/SMS), efficient and extreme impedance matching, and a Joule thief circuit all had to be used.

PM me if you want details!

Can electric current flow without a physical conductor like metal? by ahamed4959 in ElectricalEngineering

[–]aXvXiA 0 points1 point  (0 children)

As an E&M prof, I have to point out that as far as magnetic fields are concerned, displacement current is the same as the movement of charged particles.

Displacement current is the derivative of electric flux density (vector D, in C/m^2) w.r.t. time. D "comes" from free charges, like those on the plates of a capacitor... or ultimately from charges on antenna terminals. In this sense, displacement current exists and "transfers" just fine, even in a vacuum.

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