Recent content by marcusl

I’m a lurker in these interpretation threads—I like the discussions even though I often don’t understand a lot of what’s being discussed. My undergrad text was Merzbacher, which I didn’t like because it kept circling back to the same topics instead of dealing with them once and for all. Grad...

The most sensitive Weber bar, designed at Stanford, used a 4800 kg aluminum cooled to 2 to 4K to reduce thermal noise. I forget its longitudinal resonance frequency--something in the neighborhood of 1 kHz. The amplitude of longitudinal ringing was amplified by coupling it to a light diaphragm...

That tubing is pretty small to pull a meaningful vacuum, so I vote for pressure—but not very high or the fittings would fly off. Maybe it’s a water flow tube and the disks measure conductivity or voltage breakdown through the open slots?

dS=dE/T. At low temperature, systems are highly ordered and a small energy input results in a relatively large increase in disorder. At high T systems are already disordered, so a small energy increase doesn’t change the entropy much.

WWGD, you have addressed many of the post replies at great length, but the OP is long gone. BTW, note that he/she kept talking about companies, interviewers, job market, etc. but never once looked at their interview performance or addressed any in my post. I guess it’s easy to blame the world...

1. Yes, counting ADC clock cycles is equivalent to measuring time. Keep in mind that many pulse waveforms exhibit range-Doppler coupling, so a target's motion can change its apparent range. This is universally taught in radar courses, so I'm sure that is covered in a different part of your...

You’ve been seeing the wrong therapists, then. Keep looking until you find one who works for you.

Most self-study efforts are aborted, no matter how confident the self-student is at the start. You even say in your post that you might not make it through your curriculum. I wouldn’t waste time on planning the graduate curriculum until you are nearing the end of your extensive undergrad review...

Harbor Freight has plastic composite digital calipers for $9.99. (They even have plastic manual-reading ones for $1.99!) Plenty accurate for your needs. Calipers link

Go through your seven review books first. You will then be in a much better position to evaluate what level of graduate text, and what style of exposition, works best for you going forward.

Pure math probably not much but if you are applied, you might have a shot. Numerical methods, writing or improving complex simulation codes for structural, thermal or electromagnetic systems, optimizations and, of course, anything AI.

Information on spin dynamics is also in these classic texts: Abraham, Nuclear Magnetism Slichter, Principles of Magnetic Resonance EDIT: Spell check miscorrected the first name. It’s Abragam, not Abraham.

Most job seekers complain that they follow hundreds of leads but rarely or never get an interview. The fact that you are getting many interviews indicates to me that your experience is in demand and that you are targeting the right companies and opportunities. It's hard to know what the issue...

You've asked for a reality check. I find it sad to see how unrealistic your physics expectations are. You want support and free license to play, on your own terms in every way (you won't even move to follow an opportunity). The world doesn't work that way. Your notions about engineering are just...

I miss his candor. How many times have we seen a post along the lines of "I'm a physics major at a lower ranked state college with a 2.4 GPA in my major. I have problems with [mental health/laziness/bad study habits/lack of motivation/addiction to video games] but I am set on doing my PhD in...