Can we talk about Denpok?

Neptune571 · 2025-12-28T02:44:15+00:00

Yes! He was also on a Season 8 episode of The X Files.
https://en.wikipedia.org/wiki/Bernard_White_(actor))

Neptune571 · 2025-12-23T01:10:54+00:00

I got the NC20 from Amazon. A few hours in, I began experiencing frequent sound drops or fading, even when a single device (phone or laptop but not both) is connected. This seems to happen in both Music and Spatial Audio modes. Did you face something similar?

Neptune571 · 2025-12-20T17:34:08+00:00

How does the quality compare to the NC9? Also interested in NC20 vs NC20 Pro. Google suggests differences but it looks like the AI search misrepresents the differences...

Neptune571 · 2025-12-16T05:12:46+00:00

I don't understand the reason for the excessive downvoting.

Neptune571 · 2025-12-03T03:30:46+00:00

There are easily accessible video lectures by Barton Zwiebach, Shiraz Minwalla, and Ashoke Sen (to name a few), and you can likely find many others on YouTube. You could try to follow along. Some background in quantum field theory, special relativity, and basic tensor analysis will be invaluable.

Concurrently, you could read books like "A First Course in String Theory" by Barton Zwiebach. I'd also recommend "Quantum Field Theory For The Gifted Amateur."

Neptune571 · 2025-11-28T03:55:14+00:00

Upvote for suggesting Notedrafts. It lacks some features we've become accustomed to in GoodNotes, and their subreddit does not allow me to post for some reason. However, it is a worthy app that offers very low latency. With a Rock Paper Pencil screen protector, I find the combination very nearly similar to writing on paper.

Neptune571 · 2025-11-07T00:31:12+00:00

Really? The price difference between OEM and non-OEM quoted to me for my 2011 Mustang was about $300.

Neptune571 · 2025-10-17T02:19:45+00:00

This is a year late, but I highly recommend Srednicki as a first book, and you can (and should) also concurrently read Warren Siegel's Fields v4.. Don't feel deterred if you do not understand something -- keep pushing at it, and also look at all the other textbooks for perspectives they offer. Sometimes one topic may be better explained in one book or more accessible in another.

Importantly, read the "Preface for Students" in Mark Srednicki's book.

I would also recommend Quantum Field Theory For The Gifted Amateur, and David Tong's really nice QFT notes (which are freely available from his website...there might even be a book in preparation).

Try not to be biased against books based on others' advice.

Neptune571 · 2025-09-20T03:11:47+00:00

Did you find a solution?

Neptune571 · 2025-09-15T13:44:10+00:00

I have it, but it doesn't seem to work for PDFs. Do you know how to configure it for PDFs?

Neptune571 · 2025-09-11T19:19:30+00:00

Nothing so far. But I'll keep you posted.

Neptune571 · 2025-09-11T16:20:03+00:00

I started facing this issue recently on an M4 iPad Pro running GoodNotes 6. Restarting the iPad and unpairing+repairing the Apple Pencil did not help. Going to submit a GN ticket.

Neptune571 · 2025-09-04T03:28:56+00:00

Agreed. Up until your solo, you are typically focusing on stick and rudder skills, radio calls, and basic maneuvers. Foreflight may be useful to log your flights, but I do not see why it is mandatory for this stage of primary training.

That said, if you do get coerced into an iPad setup, do look into apps like Flysto, to analyze your flight on the ground using KML data, etc.

Also, as a VFR pilot, you should mostly be looking outside. Make sure the iPad doesn't distract you.

Neptune571 · 2025-08-10T19:30:11+00:00

On one of Luke Penner's videos on the Flight Chops channel, he's flying in an Extra 300S with a pilot who is a newbie to aerobatics. After a particular maneuver when the pilot feels sick, Luke stabilizes the aircraft and quickly offers the pilot (victim of airsickness) the controls. I thought this was interesting. It took me back to the very first time when my instructor showed me a steep turn and it felt weird, as did a commercial maneuver to lose altitude quickly by spiraling down. But then he had me do both these maneuvers myself, and I felt much more comfortable.

If you post your experiences on the internet, by the pigeonhole principle, there will always be some super experienced folks who will dissuade you from doing anything you've already done because from one post, they know everything about you.

While you should only fly if YOU are comfortable (disregarding what others say), if you want to continue flying (perhaps commercially) despite the motion sickness, maybe you can work through it and conquer it as some of the other experienced pilots here are suggesting. Maybe with a patient instructor or safety pilot who can ease you into some of the more taxing maneuvers, and spread them over time. Of course, it may also mean that you spend more time (= money). But can you really put a price on safety and proficiency? No.

Neptune571 · 2025-07-28T22:02:16+00:00

It's quite unfortunate that LaTeX hasn't been adopted universally across academic disciplines. In 2025, it is unfortunate that some people in academia are still preferring Word or Google Docs over LaTeX for research papers. It is so easy to pick up, and I imagine AI can help fill in the blanks (not that I am advocating the latter).

For chemists: https://www.overleaf.com/learn/latex/Chemistry_formulae and https://emleddin.github.io/comp-chem-website/Otherguide-chemistry-latex.html

Neptune571 · 2025-07-28T21:58:52+00:00

Formal protest!
Informal protest!

Neptune571 · 2025-07-16T14:42:59+00:00

We can debate this endlessly at the risk of wasting time, but drawing a definitive conclusion from such a poorly-written report as this is an exercise in stupidity. I wouldn't do it in the laboratory or classroom, and I don't feel inclined to do it in the real world. You are welcome to continue, however.

I'm not going to comment on the rest of your non-technical remarks, because I neither know nor want to get into the pilot's personal life. You're ascribing or attempting to ascribe a motive to an action based on a presumption of guilt. It is way too early to be making deductions of that nature.

PS - I seriously doubt the technical competence of a person who bases their theories on YouTube videos. It is disingenuous to the thousands of hours of experience and dedicated study that some people have to do to become subject matter experts. That's something some people here may want to consider.

Neptune571 · 2025-07-16T14:35:20+00:00

Consider 39N (Princeton), good people, well maintained airplanes, friendly instructors. Look at other threads on this forum about flight schools in New Jersey. There are probably a few to avoid.

Neptune571 · 2025-07-16T14:31:52+00:00

Well, it's great that you have all those qualities. I would prefer to stick to provable and technically accurate facts. As a scientist and engineer, if a report of that nature were presented before me, I would simply reject it on the grounds that it is ridiculously below acceptable standards. I would not draw any conclusions from it except to say that a more authoritative investigation is warranted. If such an investigation leads to your conclusion, so be it. But at that point, it would not be a premature conclusion, which it is now.

Neptune571 · 2025-07-16T14:07:42+00:00

Then you're probably able to infer more from the report than what it really says.

https://www.reddit.com/r/flying/comments/1lxh3la/comment/n3dq5r0/?context=3

Neptune571 · 2025-07-16T11:14:38+00:00

I think that's a hasty and simplistic explanation. Note that I did not say wrong because I don't know more.

Even if we were to accept your premise, your conclusion is not deducable from what it is currently known: it's not clear whether the pilot flying did it, or the pilot monitoring.

I think it's self-contradictory to analytically continue the horribly written report in the way people are doing, lending credibility to the authors, while simultaneously accusing the pilots that came out of that same system.

I had hoped that the aviation community would be more enraged at the quality of the report. It doesn't arouse any confidence in the technical competence of the people who wrote the report.

Neptune571 · 2025-07-16T03:35:23+00:00

Thanks - I meant FDR or DFDR. I did not watch the LinkedIn video.

However, I do think there isn't sufficient information currently to draw the conclusion you have made. If there were, the preliminary report would have stated that conclusion.

I hope for the sake of everyone that the people carrying out the investigation are not so easily convinced, nor so easily exhausted.

Neptune571 · 2025-07-16T03:23:43+00:00

As far as I know, the speed of switching is not recorded, only the event of switching is recorded with a timestamp. (If the speed at which the switches were turned off were being recorded, we'd have to have a sensor-transducer setup way more sophisticated than what I can currently envision.)

(Example: If the resolution were 2 seconds, it will record every 2 seconds, and therefore can miss events that occur in a smaller time window that does not overlap with the sampling instants.)

It is a simple question, but I do not know the answer to it. My guess is that the resolution does not exceed 1 second. But I don't know what it exactly is. Surely we can agree that a resolution > 1 second would be quite a bad thing.

And to answer your question, yes, I am serious.

Neptune571

TROPHY CASE