77544cec · HackerTrans

77544cec

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Russian scientist spent his whole career figuring out how to trigger quakes

1 pointsby 77544cec7 anni fa1 comments

The Remarkable Recurrent Novae

25 pointsby 77544cec7 anni fa0 comments

The Silence Barrier: A Comic Strip About Hypersonic Flight with No Shockwaves [pdf]

savoir-sans-frontieres.com

3 pointsby 77544cec7 anni fa0 comments

comments

7 anni fadiscuss

- I'm a developer.

- Huh ?

- I build websites types on an air keyboard.

7 anni fadiscuss

Think about this: this guy may well have doubts.

7 anni fadiscuss

Yeah I always sound like an ass this is why I have a lot of problem finding a job. However once I'm hired I really do work 70h a week for 38k€ (per year, yes) but still am treated like a piece of shit (the reason for that is pure discrimantion but I won't dwelve into this). Then I leave, and they ask me to come back, still treating me like a dog.

I wan to kill myself and I want to kill you.

https://www.youtube.com/watch?v=axWt4HVT7iY&t=3m57s

7 anni fadiscuss

Relevant Google Scholar link to what he did during the last 20 years:

https://scholar.google.com/scholar?q=novikov+earthquake&hl=f...

7 anni fadiscuss

Triggering earthquakes is a thing. This dude has devoted his whole career to it.

http://www.ihed.ras.ru/mg/novikov.htm

7 anni fadiscuss

Chill out, I'm one of them, I don't care.

7 anni fadiscuss

Actually I'm considering dropping out of the industry and starting a crime career. I have been in touch with someone who'd be interested in operating drones to deliver haschich from Morocco to Spain.

7 anni fadiscuss

Oh and I never downvote

7 anni fadiscuss

I code a lot, work 70h per week and am looking for a job. Contrary to 9-to-5 programmers I have built really complex systems (like a debugger or a sql engine). I can find an optimal solution in 10 minutes for almost any code wars challenge > 4 kyu. Who is hiring ?

7 anni fadiscuss

The earth is about to flip !

- https://www.youtube.com/watch?v=E31FHHH9is4

- https://www.youtube.com/watch?v=1UJKZTjGCss

7 anni fadiscuss

For those that are interested, I gathered in a gist some functional combinators I have been writing over the years.

As a personal name convention, I use '|' (the piping character) as a suffix to name any function returning a function, which includes function combinators. Thus the naming of these functions becomes straighforward: 'every-pred' becomes 'and|' while 'some-fn' turns into 'or|'.

Example:

    (filter (and| pos? even?) nums)
    (filter (or|  neg? odd?)  nums)

More: https://gist.github.com/TristeFigure/acd689f3c57e840ebb9f8a6...

7 anni fadiscuss

Vs:

    (filter (and| :admin? :mod?)
            people)

and:

    (filter (or| :admin? :mod?)
            people)

7 anni fadiscuss

Indeed this is one of the first steps Paul Graham goes through in On Lisp.

7 anni fadiscuss

Fuck that attitude. This is why I'm considering switching careers.

7 anni fadiscuss

Optimising code without taking into effect the context it runs in is what makes it premature. For instance, the complexity of the calling code, or even some situation where it will never matter in practice (efficiently sorting UI elements, which must be few to be relevantly called UI).

And there is early optimisation, when you know upfront the hill is steep because of the sheer amount of calculation involved in the very nature of the project (gamedev, big data, etc). And this can lead to low level optimizations (e.g McCarmack's fast inverse square root) or architectural measures (distributing code accross computers).

Premature Architecture ?

7 anni fadiscuss

For those who don't get it: https://stackoverflow.blog/2017/05/23/stack-overflow-helping...

7 anni fadiscuss

https://en.wikipedia.org/wiki/February_Revolution

7 anni fadiscuss

> First, let's establish some terms. Hypersonic is, obviously, supersonic on steroids. But while "supersonic" has the clear cut definition of being faster than the speed of sound (Mach 1), hypersonic is a little fuzzier. Generally, hypersonic speeds are the point at which the molecules of air that surround the aircraft start to change by breaking apart (dissociation) and/or picking up electrical charge (ionization). These things don't happen at one particular speed, so the term "hypersonic" instead refers to the point at which they start to meaningfully affect the mechanics of flight—generally accepted to be Mach 5, or 3,836.35 mph in conditions of 20 degrees Celsius at sea level.

Source: https://www.popularmechanics.com/flight/a28426/hypersonic-sp...

7 anni fadiscuss

This is how I understood the notion of Hausdorff dimension when reading Mandelbrot's book.

Pick a stick to measure the length of the curve. As you break it into smaller sticks, you can fit them in tighter niches within the curve, and your measure of the curve's length becomes greater and greater. In the case of the Koch curve, breaking your stick in 3 means you'll be able to measure a length 4 times greater.

7 anni fadiscuss

Befunge is a stack-based, reflective, esoteric programming language. It differs from conventional languages in that programs are arranged on a two-dimensional grid. "Arrow" instructions direct the control flow to the left, right, up or down, and loops are constructed by sending the control flow in a cycle. It has been described as "a cross between Forth and Lemmings."[1]

Source: https://en.wikipedia.org/wiki/Befunge

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      12345
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      6789
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