ReactOS became self-sufficient in the year of its 21st anniversary

Hello, Habr! We have sudden news!
 
 
ReactOS became self-sufficient in the year of its 21st anniversary

 
Pierre Shvetser, one of the main developers of the operating system ReactOS, made in his twitter the resonant message is . Now new builds of the operating system can be collected, using only the tools of this OS and its official build environment RosBE. The assembly environment itself is also built from the sources when the assembly script is run for the first time.
 
 
Thus, the ReactOS OS has reached a state called Self-Hosted . It is symbolic that this event occurs at a time when the project...
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Virgin Orbit - a new player in the market of inexpensive suborbital carrier rockets

Virgin Orbit - a new player in the market of inexpensive suborbital carrier rockets  
 
The company Virgin Orbit, as you can already guess by name - one of the divisions of the corporation Virgin Group , the permanent head of which is Sir Richard Branson. The company was founded about a year ago, but so far few people have heard of it. She is engaged in the development of a technology for delivering light satellites to the Earth's low orbit.
 
 
The satellite launching scheme looks like this: the aircraft takes out a small rocket to a height of about 11 km, from where it starts and goes into space, bringing satellites into orbit. The rocket operates on purified aviation kerosene...
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Memory of water, "how to charge water on TV" and other myths about living and dead water

Memory of water, "how to charge water on TV" and other myths about living and dead waterProfessional journalist, cynic and author of lectures on "The art of being a scoundrel", besides - the famous Petersburger, Alexander Nevzorov, likes to ridicule those who say: "In the USSR there was the best education in the world". No, the journalist does not deny the quality of knowledge given by the Soviet scientific school. But as if casually recalls how in the late 80's - early 90's the students of the "classical Soviet school" massively treated the illnesses on the television shows of Anatoly Kashpirovsky and charged the water with the passages of Alan Chumak.
 
 
Despite all the openness ...
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Microsoft flooded the data center in the North Sea for 5 years

Microsoft flooded the data center in the North Sea for 5 years  
 
The data center is project Natick company Microsoft successfully immersed on the seabed near the Orkney Islands (Scotland) in the North Sea. At a depth of 35.7 meters, it will work for five years, sending data over the fiber channel to the shore, if nothing breaks.
 
 
The main idea of ​​underwater data centers is saving on cooling and land leasing. Mainly, on cooling. Data centers consume a huge amount of electricity (420 terawatts, that is, ? almost 3.5% of the world's energy consumption is in data centers), and 15-20% of this ...
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Competition HackBattle 2.0 on Positive Hack Days: how they attacked the ICO school canteen

Competition HackBattle 2.0 on Positive Hack Days: how they attacked the ICO school canteen
 
 
In May of last year, the HackBattle competition was held for the first time at the Positive Hack Days VII. Our stand attracted much attention of the audience. Then almost 100 specialists in information security took part in the competition, and so many spectators came to see the finale in the big hall, that it was impossible to push through to the stage (for details, in last year's report ). Encouraged by such interest from the professional community, we decided to host HackBattle 2.0 on PHDays 8. We tell you how the competition was held ...
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The Messenger of Everything

All existing instant messengers have their pros and cons, but each of them pulls the blanket on its side because of its incompatibility with others - and this hurts users.
 
A single standard could be XMPP, but it, unlike E-Mail, appeared relatively late and did not have enough time to gain enough audience so that corporations could not abandon it. After all, they quickly realized that without holding an audience inside their own ecosystem, there was not much to gain. And besides, we must admit that XMPP had enough flaws due to the abundance of extensions, many of which, despite their importance...
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We are writing a plugin for obtaining wildcard-certificates Let's Encrypt

And hello again, dear reader. The second chapter about the adventures of Let's Encrypt in the panel ISPmanager is declared open. In the previous article we discussed the plugin for ACME v01. In this we'll talk about his evolution in terms of the logic of working with the user and, of course, the protocol ACME v02 with support for wildcard-certificates.
 
 
We are writing a plugin for obtaining wildcard-certificates Let's Encrypt  
 

Excessive concern


 
Trying to surround the user with care, you can go far. So far that it does not work with functionality at all. And the first part of our history is just about that.
 
 
When developing the module, we wanted ...[/h]
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What metrics Google Analytics provoke wrong decisions

Google Analytics and Yandex.Metrica are large systems. Their interfaces change slowly. And during the work of the systems analysts have accumulated tools, which now can not be used. The rick.ai team collects analytics errors and tells you how easy it is to set up an analyst against yourself.
 
What metrics Google Analytics provoke wrong decisions  

Why is the pie chart "New and Returned" interpreted incorrectly?


 
The teams estimate the percentage of returned users on the chart "New and Returned". If there are a lot of returning users, you do not need to strengthen or start remarketing and retargeting, or optimize email-lists.
 
...[/h]
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Intel Core i7-8086K - jubilee processor with a frequency of 5 GHz

April 1 this year we are have published the news that on its 50th anniversary Intel is releasing collector computers based on its old x86 processors. But it was April 1 - with all the consequences. But now, quite seriously. By the 40th anniversary of the architecture of x86 and its birthday, the company released a limited series of processors with the talking name i7-8086K and trim, elegant characteristics.
 
 
Intel Core i7-8086K - jubilee processor with a frequency of 5 GHz  
classmate i7-8700K , 8086К differs ...
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Oh, My Code: Machine learning and analytics in "Classmates"

Oh, My Code: Machine learning and analytics in "Classmates"  
 
What is the difference between Machine Learning and data analysis, who sits in "Odnoklassniki" and how to start my way in machine learning? We talk about this in the twelfth issue of a talk show for programmers.
 
 

 
Video on Channel Techrimrim
 
 
The presenter of the program is the technical director of media projects Pavel Scherbinin, the guest is an engineer-analyst of Odnoklassnikov Dmitry Bugaychenko.
 
Spark , for access to which we use the web front Zeppelin . Basically, the data comes through ...
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