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drran

1,205 karma · joined July 10, 2019

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drran··on “Open source” is broken
Submit a PR with the fix. It's open source after all.
drran··on Gravitational waves should permanently distort space-time
Thank you for pointing it out.

Spin-0 particles are round particles, like o (like ball), or something that cannot rotate at all. Spin-2 particles are symmetrical particles, like 8 (like H2 molecule).

For spin-0, it can be changes in density only. For spin-2, it can be changes in orientation, in rotation speed, in rotation orientation, Dzhanibekov effect, wobbling, and some other if it has more complex shape, e.g. two spirals connected.

drran··on The U.S. Air Force Has Doubts About the F-35
Quote:

Natural gas flows at the westernmost point of the Yamal pipeline — a strategically important 2,000-kilometer pipeline that runs across four countries: Russia, Belarus, Poland and Germany — dropped to 20 million cubic meters per day in mid-August, according to ICIS. This was down from 49 mcm per day at the end of July, and a sharp fall from its typical rate of 81 mcm per day.

https://www.cnbc.com/2021/08/24/russia-is-pumping-less-natur...

drran··on The U.S. Air Force Has Doubts About the F-35
Quote:

Pipeline exports of natural gas from Russia’s state-backed monopoly Gazprom to continental Europe have dropped roughly one-fifth in 2021 on pre-pandemic levels despite a sharp rebound in demand and low stockpiles of the important fuel. The imbalance has helped send prices in Europe to the highest levels since 2008, increasing energy costs for homes and businesses.

https://www.ft.com/content/c023ba5f-4d78-4749-8485-4851baf9e...

drran··on Gravitational waves should permanently distort space-time
Bubbles + thermal noise. Noise causes vibration, vibration makes bubbles stable. Vibration also causes bubbles to stick together due to Casimir effect.
drran··on Gravitational waves should permanently distort space-time
(Not a native speaker).

Space is a mathematical abstraction. You can do anything with, because it's just math. If you want to bend, curve, distort, rip space, or add more dimensions — go for it.

Physical medium should be compressible, like any other medium. Higgs «field» (let's call it Higgium — Higgs+Vacuum) is presented everywhere, because Higgs boson gives mass to every particle in the Visible Universe and beyond, so it should conduct gravitational waves. As demonstrated by LIGO/VIRGO, gravitational waves causes distortions in light travel. These distortions can be explained as changes of conductivity in Higgium, which can be caused by changes in density, so yes, it can be waves of compression.

drran··on Gravitational waves should permanently distort space-time
It uses gravity force to demonstrate that gravity force is not a force. ;-)
drran··on The U.S. Air Force Has Doubts About the F-35
USA uses drones for decades.

> The first known U.S. drone strike in Yemen was November 3, 2002 (killing al-Qaeda operative Qaed Salim Sinan al-Harethi)

drran··on The U.S. Air Force Has Doubts About the F-35
Why unmanned drones should care about that?
drran··on The U.S. Air Force Has Doubts About the F-35
> accuse Russia both of a) it sells to much gas to Europe too cheap to make it dependent on Russia; b) Russia doesn't sell Europe enough of gas, it should ramp up the sales immediately

a) RF increased its share in EU market for natural gas too much. Everybody worried that RF can decrease supply rapidly to skyrocket price.

b) RF decreased supply of natural gas rapidly to skyrocket price.

drran··on The U.S. Air Force Has Doubts About the F-35
NATO is a defense alliance. If RF will directly attack a NATO country, then a nuclear war will begin. When a NATO country attacks another country, NATO will not be involved.

EDIT: I'm wrong about Afghanistan.

drran··on Even with Agile and Scrum waterfall will sneak in
If I read the paper correctly, the iterative approach considered as wasteful, and two-stage waterfall is recommended instead: documentation and planing at first stage, to find weak points first, then execution of the plan. IMHO, it was designed for times when computer time was expensive.

I did a few projects in waterfall style about 20+ years ago, but my memories are faint. Our PM used a UML modeling tool to model classes and relationships, then exported it into Java. We wrote a lot of useless documentation. I developed a good habit to write documentation immediately, when memory is fresh, to avoid the pain of writing it later.

drran··on Ask HN: How are you taking care of you eyes?
Beta carotene is useless. Eyelid lifts, eye rolls, «snipping» corners of your monitor, frequent focus shifting (e.g. following of every tick on a ruler attached to your nose), are good for muscles, so they are recommended.
drran··on Even with Agile and Scrum waterfall will sneak in
SCRUM is just a bunch of small Waterfalls. In SCRUM, we have 2-week sprints. It's not important when one of the sprints will fail, because we will adjust following one. Moreover, we plan for first 2 sprints to fail anyway.

Why we should use something else, more complex, instead of Waterfall, for a single sprint? Waterfall is good enough and predictable enough for a 2-week sprint.

Yes, the result of a single waterfall will be bad, we plan for that, but accumulation of knowledge will lead us to success.

drran··on Even with Agile and Scrum waterfall will sneak in
> Doesn't Waterfall incorporate feedback? In my memory and experience, it does.

No, by definition. Do you see a stream of water back to the beginning of waterfall in any waterfall on the planet? Nope.

drran··on Even with Agile and Scrum waterfall will sneak in
> 1 team, 10 houses = 10 weeks, 2 teams 10 houses, = 5 weeks. Ballpark.

Concrete needs 4 weeks to cure.

drran··on Even with Agile and Scrum waterfall will sneak in
Agile is just 20-30 small waterfalls instead of big one. How small a waterfall needs to be to fail?
drran··on Even with Agile and Scrum waterfall will sneak in
SAFe works just fine when Agile is perfected, i.e. about 5 years after every day practicing of Agile. If you have no Agile to begin with, then you cannot scale it.
drran··on Even with Agile and Scrum waterfall will sneak in
Water is a good, predictable process. It's just result bad. If the result is not important, then use waterfall.
drran··on Async I/O for Dummies (2018)
Async programs are doing lazy evaluation, so they are better at discovering of critical path of execution. It's similar to out of order execution of instructions in CPU, but on a higher level.

In theory, a compiler can (should) rearrange order of execution for non-async programs also.

drran··on Game “While true: learn()” for free in Epic Store
> Does it feel Zachtronics-y?

Nope.

drran··on Open 3D Foundation announces first major release of Open 3D Engine
Why? It looks like an open contract for me, because price is an essential part of the contract. A contract with 0 price for all future labor is just slavery. Slavery is forbidden by law. Thus, you can make a game and then ask for reasonable compensation for your labor, e.g. $1000 per line of code.
drran··on Germany locks down unvaccinated people, as leaders plan to make shots compulsory
Yep, police or a guard can drag him away if he will show at work. He cannot pay a $100 fine or take a shot and continue to work like before. :-/
drran··on Germany locks down unvaccinated people, as leaders plan to make shots compulsory
Because this is not forcing?
drran··on Germany locks down unvaccinated people, as leaders plan to make shots compulsory
The fine is a punishment, not a force.
drran··on DeFi protocol BadgerDAO exploited for $120M in front-end attack
Not every. I asked them directly.
drran··on Ask HN: How do you build your personal start page?
I use simple TODO manager in local HTML file with local storage for data as the start page.
drran··on DeFi protocol BadgerDAO exploited for $120M in front-end attack
AFAIK, cryptocurrency companies are not looking for security experts at all. Users money are free, while company money isn't.
drran··on What I learned about interviewing
A’s Hire A’s, B’s Hire C’s.

If you're really a senior developer, will you enjoy to work with C's?

Try to actively «fire» the interviewer at the first minutes of interview by showing the darkest points of your CV upfront. If you succeed, you will save 6 hours of hazing and a few months of your life after that.

I was in a team with inexperienced PM and few crooks, which negotiated 2x salary over mine, but had no skills. They hated programming, actually. I tried to help, but PM fired me instead. The project collapsed, so they started to blame me, damaging my reputation. It was an awful experience.

For me, it's easy to recognize the technical level of somebody else, because I will just ask a high-level question and then see how the discussion goes. If they say «Okey, now tell me about your experience», then they are definitely not A's.

drran··on What I learned about interviewing
When you are shopping, do you buy a first apple you see or a cheapest apple you see, or you are hunting for a tastier one?
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