kkylin

36 ms·

421.
by kkylin 8y ago
I'd also think another challenge is the issue of timescales. "Green" energy sources like wind and solar can have large fluctuations, on the timescale of minutes. I don't know much about desalination plants, but I'
422.
by kkylin 8y ago
I don't know anything about neuropixels (added that Nature paper to my queue), so don't know if they live up to the hype. That said, the standard tool in many electrophysiology experiments are still tetrodes and variants ( https:
423.
by kkylin 8y ago
I think he does mean sampling from a gaussian. You can tell because the example calls randn(). The gaussian distribution is invariant under rotations in 3d (and more generally invariant under any orthogonal transformation in any dimensio
424.
by kkylin 8y ago
The (completely classical) fluids "experiment on television" mentioned in this article is presumably something like this (which is really cool if you haven't seen it before): https://www.youtube.com/watch?v
425.
City vs. Country Is Not Our Deep Political Fault Line(nyti.ms)
2 points by kkylin 8y ago|0 comments
426.
by kkylin 8y ago
Part of this difference is due to how departments are funded: math departments teach a lot of "service" courses for non-math majors. So there are enough TAships to fund most students who want them. Most other programs do not hav
427.
by kkylin 8y ago
Another example, more specialized than the others given, is MIT Scheme: IIRC it guarantees that when you READ back a float written by WRITE, you get the same float back, bit for bit.
428.
by kkylin 8y ago
Not a physicist, but I do not think thermodynamics is a physical theory in the same sense that QED or GR are: it isn't about any specific physical system or interaction, but rather a general pattern when one looks at certain properties
429.
by kkylin 8y ago
Especially the sound it makes as it tries to read a disk with bad sectors. I can still hear that in my mind.
430.
by kkylin 8y ago
I'm sometimes nostalgic for clacking disks. It's sometimes useful to know when the machine is swapping because some process has gone awry and used up all the memory...
431.
by kkylin 8y ago
MBAs have fans, the 12" MacBook doesn't.
432.
by kkylin 8y ago
For those curious, the paper (or at least a paper) on the subject: http://dx.doi.org/10.1103/RevModPhys.21.447
433.
by kkylin 9y ago
This was basically the suggestion here: https://www.nature.com/articles/s41562-017-0189-z.epdf Also previous HN discussion: https://news.ycombinator.com/item?id=15192610
434.
by kkylin 9y ago
Much much more to how neural circuits work than just connectivity. Good example to keep in mind is C elegans ( https://en.wikipedia.org/wiki/Caenorhabditis_elegans ). Despite knowing the connectivity of its 302 neurons
435.
by kkylin 9y ago
The thing I've found most effective (but hard to do in practice because it takes time): take very minimal notes, just during lecture / seminar, just enough to remind yourself afterwards what it was about. Try to write more detail
436.
by kkylin 9y ago
I haven't taught a class in a non-traditional format, but was just talking yesterday to a colleague who has been teaching in an active learning (AL) style. (Not flipped as yours was.) Her conclusions were similar: the good students l
437.
by kkylin 9y ago
Yup! Every person is a little different. One of our kids is definitely very alert and ready to learn in the early morning. The other one, unfortunately, isn't. The one-size-fits-all schedule is much more for the convenience of adult
438.
by kkylin 9y ago
Like many commenters here, I loved HyperCard and used it quite a bit in middle through high school (and even college years). For me, it never was the syntactic-sugar-laden language, but the entire environment: it was really easy to create
439.
by kkylin 9y ago
I really liked Kip Thorne's Black Holes & Time Warps. Some overlap with Brief History of Time in content, but much bigger and detailed but still reasonably accessible (I thought).
440.
by kkylin 9y ago
Oh, I didn't realize that. Thanks!
441.
by kkylin 9y ago
Julia is homoiconic but has much more complex syntax than Lisp. I personally find Julia macros harder to think about than Lisp or Scheme macros, partly for that reason.
442.
by kkylin 9y ago
Also Avila & Yoccoz: https://en.wikipedia.org/wiki/Artur_Avila and https://en.wikipedia.org/wiki/Jean-Christophe_Yoccoz .
443.
by kkylin 9y ago
Totally agree, but it should be pointed out that unlike the Fields Medal, the Abel Prize is relatively new, and perhaps intentionally set up in a way to invite comparison to the Nobel (whereas the Fields wasn't).
444.
by kkylin 9y ago
Intentional or not, pay-to-publish also acts as a barrier-to-entry for less well-funded research groups.
445.
by kkylin 9y ago
Yes, and if you're ever in Tucson, the Pima Air & Space Museum offers a bus tour (weekdays only I think) of the "bone yard" at Davis-Monthan. There's also the Pima Airpark a bit outside of town (see https:/&#x
446.
by kkylin 9y ago
I don't know much about BCI, but I'd imagine not all applications require spike sorting ( http://www.scholarpedia.org/article/Spike_sorting for those who are unfamiliar with this), though of course if one coul
447.
by kkylin 9y ago
I just heard from someone that rainwater collection is banned in parts of Colorado. Can someone with actual knowledge comment?
448.
by kkylin 9y ago
Ditto that. I haven't done the Mirror Lab tour yet, but have heard great things. Kitt Peak is worth visiting for the night observing programs (they have a couple, see https://www.noao.edu/kpvc/Prog/ ) as wel
449.
by kkylin 9y ago
Reminds of this: https://en.wikipedia.org/wiki/Eye_in_the_Sky_(2015_film) Very likely the writers knew about the insectothopter, or came across it at some point.
450.
by kkylin 9y ago
Yup, Macintosh XL ( https://en.wikipedia.org/wiki/Macintosh_XL ). I remember a company (forget the name, likely long gone) at a Macworld Expo (in Moscone!) in the late 80s or early 90s selling refurbished Lisas and Mac

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