pacman128

8 ms·

31.
by pacman128 6y ago
I don't have a copy of that book, but the abstract of this paper from 1937, co-authored by Einstein, claims that gravitational waves are a prediction of GR: https://www.sciencedirect.com/science/article/abs&#x
32.
by pacman128 6y ago
Do you have a source for this? I thought they were a direct prediction of GR and this link says the same: https://www.ligo.caltech.edu/page/what-are-gw
33.
by pacman128 6y ago
Quoting from the link, this is what gets me: Nim is case- and underscore-insensitive (except for the first character). Thus HelloWorld and helloWorld are different, but helloWorld, helloworld, and hello_world are all the same I really don
34.
by pacman128 6y ago
The trick I've seen to deal with this problem is to use a pair of doubles: one for the integer part and one for the fractional part.
35.
by pacman128 6y ago
Even opening a file with a given path wasn't in the Pascal standard. Different implementations did this completely differently.
36.
by pacman128 6y ago
Back when I taught CS, I had a colleague who did this. He ran the program and compared the output char by char to what he expected. The assignments went into great detail on the expected format of the output (column-by-column). I believe th
37.
by pacman128 6y ago
xkcd has a tribute to Conway today: https://xkcd.com/2293/
38.
by pacman128 7y ago
One of my favorite authors. Listening to his novel, Glasshouse, right now. If you're looking for something to read right now, check him out.
39.
by pacman128 7y ago
Randall Hyde created a higher level assembler back in the 90's. It supported writing C like control statements, etc. It doesn't look like it has been updated to x86-64, still just 32-bit. https://en.wikipedia.org/
40.
by pacman128 7y ago
The discussion linked to in the arstechnia.com article is fascinating. The paper's author has blinders on. https://pubpeer.com/publications/3418816F1BA55AFB7A2E6A44847...
41.
by pacman128 7y ago
The effect of a Betelgeuse supernova on Earth: https://www.huffpost.com/entry/the-betelgeuse-supernova_b_65...
42.
by pacman128 7y ago
Are humans more complex than mice or just different? I've always assumed the latter, but I'm in no way an expert.
43.
by pacman128 7y ago
Sorta doubt this. OK would be one of the worst possible locations for a Winter Olympics. The Omnibus just did a podcast on the time someone tried to create a ski resort there: https://www.omnibusproject.com/231 (Spoiler, it
44.
by pacman128 7y ago
The most infamous hire I was involved in was a guy with a long resume who had an ok technical interview on phone with me. I didn't ask him any real technical questions on the on-site visit (big mistake!). We hired him and literally kne
45.
by pacman128 7y ago
This brings back fond memories, it was my first computer. Learned BASIC and Z-80 assembly on it. Happy to see it has Level II Basic. Level I was very limited: https://en.wikipedia.org/wiki/Level_I_BASIC
46.
The 'Strong CP Problem' Is the Most Underrated Puzzle in All of Physics(forbes.com)
1 points by pacman128 7y ago|0 comments
47.
by pacman128 7y ago
Ex-prof here. The whole publish or perish mentality is a big problem. How many good papers can a researcher produce a year? Way less than they are expected to in the academic world.
48.
by pacman128 7y ago
(1) I know of one problem with C++17 and old code. C++17 removed throw specifications from the language ( http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p000... ) . We use third party
49.
by pacman128 7y ago
Since it brings two processes together, maybe spoon would be a better name.
50.
by pacman128 7y ago
Listened to a podcast about Humboldt a few weeks ago: https://www.omnibusproject.com/podcasts/alexander-von-humbol...
51.
by pacman128 7y ago
My ad supported Kindle Paperwhite has never turned off airplane mode either. I only turn off airplane mode when I have a new book to download to it and turn it back on afterward.
52.
by pacman128 7y ago
I had an old Model II 8" drive I had pulled out of old machine that I used in the Intro to Computing class I taught in the 90's. It made a great prop to show how drives work. The read/write head was about the size of a matchb
53.
by pacman128 8y ago
PhD in physics, then visiting prof for EE/CS dept at major univ for a year, then CS prof for 10 years at 2nd tier univ, then software developer for last 19 years. I don't regret getting the PhD. Always was very interested in physi
54.
by pacman128 8y ago
No, it's all in 32-bit protected mode.
55.
by pacman128 8y ago
Author here. Surprised to see this here. I wrote most of the book for the class I was teaching in the 90's. All the textbooks I could find were for 16-bit DOS assembly. I wanted to do 32-bit and use free software. I picked NASM and djg
56.
by pacman128 9y ago
Things are different today I hope, but back in the 90's when I was teaching CS, Pascal was not very portable or standardized. Even some basic operations like opening a file were not standardized. Turbo Pascal and AIX's Pascal (the
57.
by pacman128 9y ago
Years ago I had a recruiter pull a list of questions from their technical guy to ask. The first question was something about constructors in C. I carefully explained that the question made no sense for C but would for C++. They insisted the
58.
by pacman128 9y ago
It depends on the optimization level. Using no optimization, gcc 5.4 will use branches for this case, but using -O2, it avoids the branches (on x86_64). Verified by using gcc -S to show the assembly generated.
59.
by pacman128 9y ago
Another factor to consider is that relativity showed that whether two events at different locations are simultaneous depends on the observer's reference frame. See ( https://en.wikipedia.org/wiki/Relativity_of_simul
60.
by pacman128 9y ago
A common misconception about evolution is that follows a linear progression to higher forms. There is no ladder it's ascending, it's a spreading tree ( http://evolution.berkeley.edu/evolibrary/article/evo

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