kkylin

10 ms·

91.
by kkylin 2y ago
A signal processing prof back in college had worked on radars in WWII, and he told us about using acoustic delay lines for various purposes. (Can't find a good reference in the couple minutes I have right now, unfortunately.)
92.
by kkylin 2y ago
Not only that, but the rotation lock on iPads do the right thing!
93.
by kkylin 2y ago
I'm an academic at a large state university (not SUNY). Faculty, staff, and students generally have very little direct say in IT-related matters. These decisions often come down from central admin, through a process that is just as m
94.
by kkylin 2y ago
Not a physicist, but this seems to depend on the physical setting? Seems there are usually metric with physical meaning in continuum mechanics, e.g., elasticity or GR, but not so much if one is working in say geometric mechanics — one can
95.
by kkylin 2y ago
I really like the Financial Times. It was a breath of fresh air compared to other newspapers. If nothing else, I liked the tone: matter of fact, no drama. But it's (i) not cheap; and (ii) canceling was a bit harder than subscrib
96.
by kkylin 2y ago
If you're interested in this, you may also be interested in BioBricks ( https://biobricks.org/ ) and iGEM ( https://igem.org/ ).
97.
by kkylin 2y ago
I agree incentivization is definitely a big part of the problem, but I think in general a bigger issue is that as a society we tend to reward people who are the first to arrive at a non-null result. This is as true in science as much as in
98.
by kkylin 2y ago
Except for open access models where someone -- usually the authors, but sometimes universities or other institutions -- pay so that the article can be accessed by the public for free. (Authors usually don't pay out of pocket but using
99.
by kkylin 2y ago
Leaving aside all the geopolitics and bragging rights, I would imagine that one scientifc reason for trying is that since the far side gets more meteor hits, there may be more material from elsewhere in the solar system. (Having said that
100.
by kkylin 2y ago
OMG. We used CLU in a software engineering. The compiler (really a CLU-to-C translator I think?) was sooooo painfully slow. Can't imagine using it for anything moderately complicated.
101.
by kkylin 2y ago
I don't think the new course is "SICP with Python"; my impression (from talking to GJS!) is it's a different course that now uses Python. But maybe someone here has experience with it & can speak up.
102.
by kkylin 2y ago
Previous discussion: https://news.ycombinator.com/item?id=40219205
103.
by kkylin 2y ago
Glenn Gould Reader , a collection of writings by Canadian pianist Glenn Gould Eye, Brain, Vision by David Hubel, IMO an excellent introduction to visual neuroscience for the layperson and a really, really nice example of good scientific
104.
by kkylin 2y ago
"Nothing in Biology Makes Sense Except in the Light of Evolution" - T. Dobzhansky https://en.wikipedia.org/wiki/Theodosius_Dobzhansky https://en.wikipedia.org/wiki/Nothing_in_Biology_Make
105.
by kkylin 2y ago
Primary sources: [1] https://www.cell.com/cell/pdf/S0092-8674(24)00182-X.pdf [2] https://pubmed.ncbi.nlm.nih.gov/38603509/ The first is open access.
106.
by kkylin 2y ago
Primary sources: [1] https://www.cell.com/cell/pdf/S0092-8674(24)00182-X.pdf [2] https://pubmed.ncbi.nlm.nih.gov/38603509/ There's also a press release from LBL: [3] https://n
107.
by kkylin 2y ago
Even at top-notch universities (public or private), when I talk to retired faculty, grading almost always comes up as a reason they don't want to teach anymore. [Edit: not disagreeing with your point.]
108.
by kkylin 2y ago
I'm not a big fan of putting everything in the cloud, but one of the advantages of online grading systems is that it is easier to make this kind of adjustment. The workflow goes like this: make a rubric item for a specific kind of mis
109.
by kkylin 2y ago
Online tools like Gradescope make this a little less painful (but still painful), but sometimes it's what's needed, especially on problems that are a little open-ended.
110.
by kkylin 2y ago
https://xkcd.com/410/
111.
by kkylin 3y ago
I recently heard this explained ( ) in the following way: three is the smallest number where you can set up an expectation (with the first two) and then break it. This is why three is such a common number, not just in jokes but in all sort
112.
by kkylin 3y ago
Cory Doctorow has a theory that may be relevant to your question: https://locusmag.com/2023/12/commentary-cory-doctorow-what-k... I'm not knowledgeble enough to judge, but am curious what people think.
113.
by kkylin 3y ago
A portable and affordable braille reader would be great. I had a couple of blind students in my calculus course a couple years ago, and screen readers are just not a good substitute (too slow and hard to understand when there are a mix of
114.
by kkylin 3y ago
I work at a large state university in the US, and none of this is a surprise. It is in part general population trends, in part a significant drop in birthrates around the 2008 recession. COVID didn't help -- the number of foreign stu
115.
by kkylin 3y ago
Nit pick: Einstein was awarded the Nobel for the photoelectric effect. https://www.nobelprize.org/prizes/physics/1921/summary/ (I think he could have won it for the theory of Brownian motion too!)
116.
by kkylin 3y ago
If the point is to list SF stories where a mathematical idea (broadly construed) or a mathematician plays a central role, the following immediately come to mind (for me): Asimov's Foundation, Ted Chiang's "Story of Your Life,
117.
by kkylin 3y ago
In case anyone else wanted to know what they spent these months doing and why it took so much time to take care of those two screws: https://news.arizona.edu/story/nasas-osiris-rex-curation-tea...
118.
by kkylin 3y ago
Our textbook of choice didn't have a braille version, so we sent it out to be converted one chapter at a time. Since textbooks don't change often, a turn-around of weeks is not so bad if we knew the students were going to be in t
119.
by kkylin 3y ago
Thanks for the suggestions! When you LaTeX your work to turn in, do you work only with the source, or do you have a good way to read the PDF output? I agree the amount of LaTeX needed for calculus is pretty minimal. One of my students was
120.
by kkylin 3y ago
The other responses are quite good so I won't try to add to them. But this being HN, do have a look at https://groups.csail.mit.edu/mac/users/gjs/6946/sicm-html/bo... for an approach that migh

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