Recent content by DaveE

Still born?

polychromatic polarizing microscopy is a bit more complex than conventional polarization microscopy (the one with crossed polarizers and a waveplate). In PPM, instead of a simple polarizer in front of the illumination they construct a different polarization state for each wavelength for the...

## A \overline B ## is as good as you will get IMO. You might also have to test for ## \overline A B ## to exclude the ## \overline {AB} ## and ## AB ## states. Which binary result do you want? You might look up Karnaugh maps for this sort of question.

Yep. Ask anyone that's ever done a PCB layout for a SMPS or high speed digital if the schematic tells the whole story. YouTube creators and even physicists might do better if they could just admit that they haven't studied or worked as an EE IRL.

I'm reminded of a favorite quote from, maybe, the best analog EE prof ever: "Engineering is the art of approximation" - R.D. Middlebrook Our task is to build models that are just good enough, not perfect. Good enough to aid our understanding and answer our questions without too much effort...

Interference is just a consequence of vector addition. You'll also see it in water waves in a harbor. Lots of things are well modeled mathematically as vectors. It sounds to me like you are seeking profundity in basic math.

https://www.khanacademy.org/science/grade-11-physics-snc-aligned/x1d0fed5276339e80:relativity-and-particle-physics

Brackets that don't include an operator are meaningless. (a) = a. First step, remove them. so, V=((H/100)^(a)*(b))+(c)=((H/100)^a*b)+c Brackets are sometimes added when not necessary for readability, but this is subjective. V=(H/100)^a*b+c is the minimal usage. They are required to force...

I would bet that the people making these videos know the answer just as well as we do. I think they are playing up the mystery for effect. Students deserve a simple explanation, not a carnival show.

I think there's a broader issue on display here which is often neglected and not well taught in introductory physics. CIRCUITS AREN'T REAL. These are always simplified approximate models that we make of the real world which allows us to use simple, powerful, analysis tools. As such, we must...

Always keep in mind this first sentence of the Wikipedia entry: "Kirchhoff's circuit laws are two equalities that deal with the current and potential difference (commonly known as voltage) in the lumped element model of electrical circuits." The key phrase here is "lumped element model"...

How would you know? You never see the counterfactual. Maybe one of your neighbors is a genius but is lazy and content. I've worked with some truly brilliant people at the laser company, you'll never see their names in the news. They're not trying to win a Nobel prize, they're on a different path.

I suspect it's a disconnect between what the physics community thinks "correlation" actually means versus the general public. It's not about age, it's about vocabulary and education. Better questions get better answers. In the context of a vague question, a vague understanding of the terms isn't...

Anyway, Yes. But I wouldn't let that stop anyone. There are many other factors involved. https://www.researchgate.net/publication/222403422_Intelligence_and_Educational_Achievement

What an odd question. Perhaps you could be more specific? 1) STEM is not a measurement. Perhaps you need a performance metric? Or are you just counting some (undefined) count of participation? What do you think STEM is and how is it measured? 2) Yes, many things can have some correlation with...