jpeanuts

10 ms·

1.
by jpeanuts 3y ago
This is not so crazy - this was exactly the progression in screw drives. First came slotted screws (2-fold rotational symmetry), then Phillips/posidrive/Robertson (4-fold), and now Torx (6-fold). Going back to slotted now is act
2.
by jpeanuts 3y ago
I think the paper is a satire on "evidence-based medicine" - a framework which insists upon randomized controlled trials as the primary basis for medical decisions. Notably this is exactly such a trial, while also absolutely irrel
3.
by jpeanuts 4y ago
I guess I'm insane then... I built his pantorouter, and am half-way through his 16" bandsaw build. One good reason to build the bandsaw is that it's actually a very high-quality machine - if executed well. It has an extreme
4.
by jpeanuts 4y ago
Or: there are a lot of people who think that they're in on a scam, but in fact are lower down the pyramid than they are told. That explanation requires no faith, and can also explain participation of entirely rational actors.
5.
by jpeanuts 4y ago
A place where autocorrect might be considered is in REPLs. Out of habit I still regularly write "print 'a'" in the Python REPL although I've been using Python 3 for a while. You get: SyntaxError: Missing parenthes
6.
by jpeanuts 4y ago
Looking at the documentation - einops seems to only implement operations on a single tensor, so it's quite far from a general replacement for einsum, which can perform tensor-products on an arbitrary number of tensors.
7.
by jpeanuts 5y ago
The idea of using a multi-agent game, rather than minimizing a single loss function, is already used in GANs - and there it seems to be an very powerful generalization of optimization. Personally I would say the idea is extremely interes
8.
by jpeanuts 5y ago
Not at all serious but... maybe all electrons have the same mass, charge, etc. because there is only one electron, bouncing backwards and forwards through time. As it passes backwards we see it as the anti-electron (positron). When they
9.
by jpeanuts 6y ago
I went to one of these Sunday dinners about 5 years ago. I was living in Paris and taken there by friends - who didn't explain the concept to me in advance. So I found myself in someone's house, with a massive buffet table and w
10.
A practical case on why we need the humanities(acoup.blog)
47 points by jpeanuts 6y ago|72 comments
11.
by jpeanuts 7y ago
Maths notation can be wonderfully concise and precise, so it worth thinking about following it closely when programming. One of my favorite examples of this is the numpy `einsum` call [1]. It implements Einstein summation convention [2] -
12.
by jpeanuts 7y ago
This is a very important idea. On a global scale this idea has been codified as "climate stabilzation wedges": https://johncarlosbaez.wordpress.com/2010/11/16/stabilizatio... Each "wedge"
13.
by jpeanuts 7y ago
Thanks for correcting my embarrassing error! It's too late to edit my comment, but indeed x4 is the lower bound.
14.
by jpeanuts 7y ago
In my opinion it is disingenuous to call any supersonic aircraft sustainable. Independently of any clever aerodynamic design to moderate the drag coefficient, aerodynamic drag always increases like the velocity squared. Doubling the speed
15.
by jpeanuts 7y ago
The reason those are all "f"s is that they are all versions of the same thing: the function mapping features to outputs, or approximations of it. The capital "F"s refer to random variables/processes describing the
16.
by jpeanuts 7y ago
Indeed, it seems like a pretty subtle distinction. Given sufficiently bright light, sunflowers would certainly pass the behavioral experiment done here (which is very nicely summarized in Figure 1 of the paper). The distinction must be in
17.
by jpeanuts 7y ago
Perhaps even more significant is that Uber gave you the price of the trip in advance . With regular taxis you had to guess, and if you weren't familiar with area, you best guess might well be just "expensive". And then you
18.
by jpeanuts 7y ago
While I understand the desire for a unified Python ecosystem as much as anyone - this kind of pettifogging is not going to convince anyone to switch to Py3. Consider if the authors of the article had used (for example) Ruby - you probably w
19.
by jpeanuts 8y ago
The red block reminds me of the monster in the film "It Follows". It very slowly but relentlessly heads straight for you wherever you are. Surprisingly unnerving.
20.
by jpeanuts 8y ago
This is a really great tool - the kind I didn't even know that I needed until I was given it! One question, does anyone here know how to interpret the GIL (Global Interpreter Lock) percentage display in the top-left? In my code, &quot
21.
by jpeanuts 8y ago
Your missing the requirement that the random sample be uniform in the sphere. That is, if the sphere is cut into any number of pieces of equal volume, the sample is equally likely to appear in any piece. Your approach samples uniformly from
22.
by jpeanuts 8y ago
If you can just dig and evacuate the tunnels, you can get energy-free transportation to anywhere on earth: https://en.wikipedia.org/wiki/Gravity_train
23.
by jpeanuts 8y ago
Relevant comic: https://www.smbc-comics.com/comic/existence
24.
by jpeanuts 8y ago
I've seen it exactly once (in a numerical analysis journal). Authors were blacked out. This was undermined almost immediately when the authors wrote in the introduction "... following previous work of the present authors [1]...&
25.
by jpeanuts 9y ago
I'm more bothered by the tautology. What is an unswept delta-wing supposed to look like?
26.
by jpeanuts 9y ago
1. The Python in that example requires no imports. 2. I think the author (Vicki) is a she.
27.
by jpeanuts 9y ago
A Mathematician and an Engineer attend a lecture by a Physicist. The topic concerns Kulza-Klein theories involving physical processes that occur in spaces with dimensions of 9, 12 and even higher. The Mathematician is sitting, clearly enjoy
28.
by jpeanuts 9y ago
Your story suggests value in another article focussing on the personalities of Tinsley and Schaeffer. Both obsessives, both pre-eminent in their domain, but in quite different ways - and with different consequences on the rest of their l
29.
by jpeanuts 9y ago
A truly fascinating story. I recall reading another version with an additional detail: after Checkers was solved Schaeffer evaluated every recorded game Tinsley had played in his life - and determined that there were only a handful of move
30.
by jpeanuts 10y ago
Some of them do! Fly at least... https://en.wikipedia.org/wiki/Ballooning_(spider)

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