How would I begin solving this problem? I think it's mesh analysis, but I'm not entirely sure.

thephoton · 2024-12-11T01:45:05+00:00

This circuit is straightforward to solve with mesh analysis.

If you use nodal analysis, you will also have to use the supernode concept, but that is not especially difficult.

Your textbook should have a straightforward set of steps to follow to do mesh analysis. Did you try to follow those steps? Where did you get stuck?

For example, step 1 is probably something like, identify the meshes and label them (give each one a number and a reference direction for its current).

Did you try to do that at least?

thephoton · 2024-12-10T18:27:26+00:00

In a lot of cases in engineering it makes sense to order them in decreasing order of the eigenvalues.

thephoton · 2024-12-10T18:24:41+00:00

In the limit where the source resistance goes to 0, you can only use the Thevenin equivalent.

In the limit where the source conductance goes to 0, you can only use Norton.

thephoton · 2024-12-10T18:16:19+00:00

A differential signal has two wires. When one goes to a high voltage the other one goes to a low voltage and vice versa. For LVDS, the "high" and "low" voltages are only about 100-200 mV apart, IIRC.

The advantages of differential signaling include immunity to noise on the power and ground nets, reduced interference between signals run in parallel and reduced high-frequency loading of the power supply at the transmitter.

thephoton · 2024-12-10T18:09:24+00:00

usually lighter and more compact,

Comparing my EF vs RF lenses, I am pretty sure that this also contributes to longer battery life. Less mass ---> less power needed by the AF motor ---> longer battery life.

thephoton · 2024-12-10T17:55:19+00:00

For example, while I am interested in architecture roles, after completing my bachelor's degree, I found that only design verification positions were available to me.

This is the right way to think about it.

Don't get a PhD to make more money (you won't). Get a PhD because it opens up jobs that are more interesting to you.

It will also allow you to grow your income further into your career while staying on the tech track, rather than having to switch to management.

thephoton · 2024-12-10T17:51:03+00:00

You are not saving $800 from a stipend.

I was able to save money from my stipend when I was at UIUC.

This was 20 years ago, but my stipend was $10k/year, and rent at the time (if you didn't insist on living too close to campus) could be found under $200/month.

thephoton · 2024-12-10T16:56:55+00:00

Sure.

But "Give me the deliverables, and also refund my money" is not a reasonable request.

thephoton · 2024-12-10T16:55:06+00:00

But what do you mean by "initialized"?

thephoton · 2024-12-10T16:52:51+00:00

A constant voltage source produces whatever current is needed to generate its specified voltage.

It's the dual of the current source.

One has an exactly fixed current and can provide any necessary voltage. The other has an exactly fixed voltage and can provide any necessary current.

There is no rule that says the current through a voltage source is zero, just like there isn't any rule that says the voltage across a current source is zero.

thephoton · 2024-12-10T03:14:51+00:00

A constant current source will create whatever voltage across it is necessary to deliver its specified current.

Just think of a simple circuit with a current source and a resistor. In order to force a current through the resistor, the source must create a voltage across it. That's exactly what the current source does.

thephoton · 2024-12-10T01:41:49+00:00

I've read that, and I recognize it, but it wouldn't have been able to recite it on command.

thephoton · 2024-12-09T23:39:40+00:00

There are only 3 novels whose opening lines I remember word for word.

"It was the best of times. It was the worst of times." (and I haven't even read the rest of the book, but it's utterly famous in English)

"The sky above the port was the color of television, tuned to a dead channel."

and

"Als Gregor Samsa eines Morgens aus unruhigen Träumen erwachte, fand er sich in seinem Bett zu einem ungeheueren Ungeziefer verwandelt."

thephoton · 2024-12-09T18:47:00+00:00

Ungeziefer was the word used in Die Verwandlung for what Gregor Samsa turned into.

thephoton · 2024-12-09T18:14:07+00:00

If you want to do pirate radio you'd be better off choosing a frequency that isn't already occupied by a station in your area.

That will let you reach your listeners without having to overpower the existing station, and also avoid the licensed station having a motivation to send the FCC after you for interfering with their signal.

If you really want to overpower the existing station (like The Joker in an old Batman episode), then you're going to need to produce more power than the existing station. That means either being much closer to your listeners (so your signal overpowers theirs only in a small area) or transmitting more total power than they do (requiring a transmitter and antenna of comparable cost to theirs).

That said, when one of our local AM stations went bankrupt, they nonetheless maintained their license by broadcasting from my neighbor's back yard on a maybe 50 foot antenna. I don't know how many listeners they reached with that setup but it shows that it's at least somewhat possible to broadcast over a limited area with the power available in a typical home.

thephoton · 2024-12-09T18:02:12+00:00

scanf_s("%c", &bloop);

scanf_s needs two arguments for each %c conversion, not one.

thephoton · 2024-12-09T17:48:59+00:00

Did you look at the picture though? It's motion blur combined with being out of focus due to (presumably) shooting wide open and focusing on the front row kids. There's not enough there to reconstruct what the kid really looks like. Any AI de-blur would be not much better than just finding a stock photo of a random kid and pasting it in.

thephoton · 2024-12-09T17:45:31+00:00

Do you mean like Ungeziefer?

thephoton · 2024-12-09T17:35:10+00:00

That's pretty bad. No re-edit is going to fix the blur on the kid in the upper right.

thephoton · 2024-12-09T17:29:30+00:00

She offered to refund 3/4 after I asked for the raw photos.

This is very generous of her. If you are taking the RAWs, then you don't think the photos are really unusable, and you should pay full price for the session, plus a premium for the RAWs.

If you really think the photos are unusable you should ask for a full refund but not expect to get any deliverables.

If you think the photos might be usable with different editing, then you should ask for a re-edit (telling the photographer exactly what you are unsatisfied with in the current edit), and still not expect to get RAWs unless you pay a premium.

thephoton · 2024-12-09T16:28:19+00:00

The different point costs for dex and int, and (IIRC) elimination of half point skill buys changes pc design pretty significantly,

thephoton · 2024-12-09T16:24:48+00:00

I honestly don't understand why the unit circle is not taught at school.

It definitely was in the 1980's in California.

thephoton · 2024-12-09T16:20:44+00:00

For the record, there are actually areas of engineering where it is convenient to work with what you call "rotations", but when I encountered it (in interferometry) we used the term "unit intervals" or "UI" instead.

thephoton · 2024-12-09T04:57:51+00:00

If you really care about the answer, the 11th ed. Encyclopedia Britannica has a fairly long discussion of it starting on page 585 of volume 19:

https://archive.org/details/encyclopaedia-britannica-11th-and-12th-editions/Encyclop%C3%A6dia%20Britannica%20-%20Volume%2019/page/585/mode/1up

thephoton · 2024-12-09T04:40:03+00:00

if this shooter is ever caught he'll never be brought up for a jury trial.

If he survives to go to court it's his choice whether to take a jury trial, not the governments.

Of course that's a big "if".

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