fferen

8 ms·

31.
by fferen 4y ago
+1, Full screen video works about 10% of the time on my phone.
32.
by fferen 4y ago
Note that this is Science Advances, a much less prestigious journal than Science proper.
33.
by fferen 4y ago
Exactly what I was thinking. I remember I once used "ana" everywhere in a program to avoid this.
34.
by fferen 5y ago
I totally disagree. I find more mystery in large, industrial spaces than the rustic kitchen in the painting. I can easily picture "spirits dancing" in supermarket aisles and warehouses. The popularity of Liminal spaces [1] suggest
35.
by fferen 5y ago
I have had the same thoughts before and come to a similar conclusion. I believe it's not about the language. It's about the features: runtime code editing, single address space, program interoperability. Lisp could be replaced wit
36.
by fferen 5y ago
I did similar things many times, though not as sophisticated. Using a chair on a table as a standing desk, etc. It's fine but at some point becomes an eyesore and makes you want some proper things.
37.
by fferen 5y ago
I see. I don't know of a great answer, but it comes down to the constant speed of light. The simplest clock is two parallel mirrors with light bouncing back and forth. If someone is moving, then the light seems to take longer to bounce
38.
by fferen 5y ago
Thanks! I don't believe these two concepts are related. You get back to the same point because the earth is _globally_ a sphere. However, time dilation and length contraction are _local_ concepts: they happen even for very small motion
39.
by fferen 5y ago
This is fair enough. Hopefully some will still find it useful. I will note that I took a special relativity course in university that did things the "slow and intuitive" way, and many years later realized I still had some fundamen
40.
by fferen 5y ago
Any particular suggestions? Although it is compact, I have tried to carefully choose the wording and arrange the sections so each concept builds on the last. Also, I intentionally avoid unnecessary mathematical abstraction; for example, the
41.
Show HN: Relativity: A Modern Primer(ramp-book.com)
204 points by fferen 5y ago|39 comments
42.
by fferen 5y ago
Perhaps this is unique to Apple? Even during my interview they were very explicit about having to work above and beyond. Ended up choosing somewhere else.
43.
by fferen 6y ago
When I was a teenager with a TI-84 calculator, I used the trick of blinking the screen quickly at a fixed duty cycle to get "grayscale" from the black and white screen. Good times...
44.
by fferen 7y ago
Indeed, it is at the start of the book. It also relies on the assumption that the Lagrangian is invariant up to a total time derivative under Galilean transformations, which leads to `dL/d(v^2)` being a constant (1/2 m). This is,
45.
by fferen 8y ago
When I read this I literally hear the music :) https://www.youtube.com/watch?v=NgztPP_CWNQ
46.
by fferen 10y ago
> I tested the new feature on my favorite opening: 1.e4 e5 2.f4!, a.k.a. the mighty King Gambit. Stockfish hates it, and asked me to review it like it was a mistake! Yet it's considered playable. Actually Carlsen played it against
47.
Battery electrodes: Magnetic influence(nature.com)
1 points by fferen 10y ago|0 comments
48.
by fferen 10y ago
I think the point there is to know how to do those geological tests :)
49.
by fferen 10y ago
As a grad student at a university with ample access to journals, I still use sci-hub occasionally, as many journal sites are surprisingly unreliable (cough IEEE, cough Nature).
50.
by fferen 11y ago
It's a bishop, not knight.
51.
by fferen 11y ago
I uploaded the paper for anyone interested: https://drive.google.com/file/d/0B2R-ri3N25FnWHBWRzNlak01WEE...
52.
by fferen 11y ago
That's kinda what the study finds: the worst group was the non-ADHD group that exercised.
53.
by fferen 12y ago
Basic idea: - A lens acts as a Fourier transform on an optical signal. - d/dx is multiplication by ik in the frequency domain. - They made a spatial reflection profile r(x) ~ ix using an array of nanobricks of different sizes (optimize
54.
by fferen 12y ago
Someone should make a keyboard that assigns nice sounding intervals to the most common digrams/trigrams so that typing normal text produces better music.
55.
by fferen 12y ago
Hello, dallen33!
56.
by fferen 12y ago
This is what I was thinking. Since there are only a countably infinite number of prisoners, you can't assign each one an equivalence class.
57.
by fferen 14y ago
I thought that at first too, but then I thought maybe most of the support is inside, not visible.
58.
by fferen 14y ago
This is just the download page, the front page has more info: http://www.pharo-project.org/home
59.
The Minor Third Communicates Sadness in Speech, Mirroring Its Use in Music [pdf](ase.tufts.edu)
2 points by fferen 14y ago|0 comments
60.
by fferen 14y ago
I think it's because the mercator projection distorts size, while the pieces try to stay the same (real-world) size as you move them. I didn't make the game, I just found it.

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