7 best free programs for conducting webinars in 2018

 3r3-3559. 3r3-31. 3r33544. 7 best free programs for conducting webinars in 2018
3r33542.  3r3-3559. 3r33544. At the most basic level, the webinar software includes video conferencing and audio conferencing. Some also offer features such as screen sharing, video recording, file sharing, and integration with other software, such as Microsoft PowerPoint. 3r33547. 3r33542.  3r3-3559. 3r33544. Most of the webinar software is paid and many users come to traditional video conferencing software. Video conferencing software and webinar software are often very similar, but differ in the number of participants and functionality. However, many find the functionality ...
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Droneless cars for beginners

Pro unmanned cars constantly flash news, but what really happens in this area? How do unmanned cars drive? Who makes them? Why do they still not go en masse through the streets? Let's try to sort everything out.
 3r33354.
 3r33354. Droneless cars for beginners
 3r33354.
An early version of the drone Lyft

 3r33354.
 3r33354.

What is an unmanned car


 3r33354. This is a car equipped with an automatic control system that can move from point A to point B without human intervention.
 3r33354.
 3r33354.

How do unmanned vehicles


 3r33354. To arrive at a destination, an unmanned vehicle must know the route, understand its ...[/h][/h]
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Retrospective: what started the era of transistors and how the startup culture developed in the 1940s and 1950s

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The gate closes. Until the threshold of duty-free purchases is reduced, exactly a month remains for

 
3r3-31. The gate closes. Until the threshold of duty-free purchases is reduced, exactly a month remains for 3r33140.  
3r33140.  
3r3142. Maybe you forgot, because it is not as hot as this spring , but the law on the gradual reduction of the limit of duty-free shopping has not gone anywhere. And it will soon take effect, to the delight of national retailers.
3r3138. 3r3143. 3r33140.  
3r33140.  
3r3115. In the previous series
3r33140.  
3r3142. Since 201? the number of overseas shipments has increased by 56%. In 2017 alone, Russians received 400 million foreign parcels. The share of foreign online commerce in Russia is almost 40% (420 billion rubles). People tend to buy cheaper, and gradually ...
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How to reduce the risk of stock investment: 3 useful tools

 3r3171. 3r3-31. How to reduce the risk of stock investment: 3 useful tools
 3r3171.
 3r3171. Image:
Unsplash

 3r3171.
 3r3171. Many people want to increase financial literacy and try some new ways to invest free money, in addition to bank deposits. The logical continuation of such a desire to become thoughts to explore stock trading.
 3r3171.
 3r3171. At the same time, few people want to pay for any mistake losing their own money. This will scare off potential investors, but there are a number of ways that can significantly reduce the risk of such investments and in some cases bring it closer to investments in bank deposits. Today we will talk about useful ...
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We meet December with the Secret Santa in the form of a Telegram bot

 3r3125. 3r3-31. Hello hrobrozhiteli! 3r33112.  3r3125. 3r33112.  3r3125. We meet December with the Secret Santa in the form of a Telegram bot 3r33112.  3r3125. When I was still a schoolboy, I opened with Habr periods, and one of the articles that I remembered at that time was 3r315. Club of anonymous Santa Clauses 2013 - 2014 3-???. . At that time, it seemed to me one of the coolest ideas to organize such actions, where you can be in the role of Santa Claus for a complete stranger, and at the same time receive a gift from the same stranger. After this habropost, I learned that such a thing exists in general, which, in principle, gave further impetus to writing this bot ...
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How to download belongs_to to work twice as fast (database_validations gem)

In this article, I will show why you need to use db_belongs_to from 3r3118. database_validations heme instead of the usual belongs_to . 3r33130. database_validations gem . This heme already included validates_db_uniqueness_of , which people liked ( post on Habré ) and now has db_belongs_to which is very easy to implement in your project. db_belongs_to improves performance and ensures data integrity. 3r33130. 3r3125.  

The method does several things for you:

3r3125.  
  •  
    3r3111. Checks for the existence of a valid foreign key constraint ...
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Tableau Software provides a natural language interface for creating

visualization. 3r3186. 3r3-31. 3r3161. Hi, Habr! I present to you the translation Article "Tableau talks up natural language interface for creating visualizations" Peter Sayer 3r3162. . 3r3173.  3r3186. 3r3173.  3r3186. 3r3161. The BI provider seeks to simplify and automate data analysis as part of the growing trend towards the introduction of AI (artificial intelligence) capabilities into BI tools. 3r3162. 3r3173.  3r3186. 3r3173.  3r3186. 3r318. 3r3173.  3r3186. 3r3173.  3r3186. How many statisticians are needed to build a new data model? According to Tableau Software, not at all. The company ...
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RecyclerView tree list (without third-party libraries and child arrays)

Good day, dear readers.
 
 
In my article, I want to share the implementation of the tree view using RecyclerView. Without using any additional libraries and without using a child array.
 
Who cares, I ask under the cat. I will try to describe as much as possible what yes how.
 
 
RecyclerView tree list (without third-party libraries and child arrays)  
 
The principle of forming a list of elements is that the child elements will be shown or hidden.
 
 
Although I said that the implementation will be without additional libraries, but the standard libraries still need to connect.
 
 
3r33333. 3r3333391. Linked libraries [/b] 3r33393. 3r33394. 3r3179. dependencies {
implementation ...
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Robotron BIC A5105 is an unknown person of the GDR

Robotron BIC A5105 is an unknown person of the GDR  3r3119.
 3r3119. Florian Schäffer, CC-BY-SA ???r3r3109.  3r3119.
 3r3119. Hi, Habr! Read in 3r313. recent article 3-333112. :
 3r3119.
 3r3119. "Stefan Paubel, who founded the HdjT computer club in January 1986 and was its leader, did not recognize computers developed within East Germany - KC 8? created by VEB Mikroelektronik Wilhelm Pieck Mühlhausen and KC 87 manufactured by VEB Robotron."
 3r3119.
 3r3119. Why did not recognize, absolutely I do not understand, but this publication is about something else. Wake up at night with a fairly savvy retrocomputer, ask which people, not counting IBM PC-compatible...
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