کارماسرا

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کتاب انسان خردمند، به بررسی تاریخ موجودیت انسان از دوران انسان باستان در عصر سنگی تا قرن بیست و یکم می‌پردازد. یووال هراری نویسنده کتاب انسان خردمند، تاریخ را به چهار بخش تقسیم می‌کند:

  1. انقلاب شناختی
  2. انقلاب کشاورزی
  3. وحدت انسان‌ها
  4. و انقلاب علمی.

بحث اصلی کتاب انسان خردمند، آن است که انسان‌های هوشمند، تنها به این خاطر بر جهان حاکم شده‌اند، که تنها حیواناتی دارای انعطاف‌پذیری زیاد در همکاری هستند. به گفته هراری، انسان‌های ماقبل تاریخ ممکن است مرتکب یک نسل‌کشی عظیم شده باشند که منجر به انقراض گونه‌های دیگر انسان مانند نئاندرتال‌ها شده‌ باشد.

در ادامه کتاب انسان خردمند عنوان شده است، دلیل این‌ که انسان‌های هوشمند می‌توانند با انعطاف‌پذیری زیادی همکاری کنند، باور به چیزهایی مانند خدایان، ملت‌ها، پول و حقوق بشر است، که تنها در تخیلات‌شان وجود دارد.

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Ketabsal

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What is Web design?

 

Web design refers to the design of websites that are displayed on the internet. It usually refers to the user experience aspects of website development rather than software development. Web design used to be focused on designing websites for desktop browsers; however, since the mid-2010s, design for mobile and tablet browsers has become ever-increasingly important.

Design for mobile has become an ever-increasingly important development area for website developers because of the increasing speed at which users can access the internet, and the increase in the number of users who are becoming smartphone- and tablet-dependent.

“Mobile-first” approaches to website design prioritize creating mobile-friendly websites for better user usability and performance on mobile devices.

Most mobile browsers offer a menu-bar at the top of the site to allow navigation between main sections. So it’s important that the website’s design works optimally for mobile wherever possible. In fact, desktop and tablet browsing tend to become less popular as computer technology becomes more capable.

Most marketers, or anyone who has a matter of business to discuss, will benefit from using a website builder.

Website building companies generally offer a free package as part of their package of tools. Not all of these companies offer all the features on offer, but you can get a good idea of the start from the list of offered features above. The main value for website builders is obviously in their websites. After about five minutes perusing the offering, you should have a decent sense of whether there are features lacking in your website that need to be developed. Your website must be working and display the correct information or else you won’t be drawing visitors to your website.

It’s vital that website builders have clear, well-documented, and universal guidelines for development. This will avoid conflicting decisions being made between different teams. They will also reduce the number of decisions needed to create website assets and minimize the amount of time needed for website development.

The above resources are an overview of the different processes involved in website building. Feel free to explore whether you can identify a need for a specific feature or not. Once you are aware of the types of tools available, researching them a bit more will give you a better sense of which company has the best offer and how easy it is to sign up. I hope you can use these to your advantage to ensure your website is universally and elegantly presented.

 

 

 

The movement from desktop to mobile quickly progressed from a transition driven by different user needs and browser support, to one driven by many money-driven business decisions. Before smartphones, it was difficult and expensive for websites to be viewed on small screens. Even now, mobile browsing remains a challenge for some users due to screen size and battery consumption. As more people are searching for information on their phones places like Wikipedia and Twitter are adapted for smaller screens to discourage mobile-based browsing habits.

The problem with mobile-first websites is that they usually take longer to load and are harder to use because you are forced to scroll instead of tap and move forward through your content. What is an article on mobile if not something to be swiped through? Not to mention editing, creating, or deleting content. A problem that would have been immediately recognizable to the founders of most major websites has now become the norm with the rise of mobile websites.

In the early days of the web, users could only browse the internet on personal computers (like PCs or Macs). Back then displaying the entire contents of a website on a single screen was considered impossible. Using a desktop browser, you had to give the website your full attention to view it. Of course, some resources like images and videos could load before the main content, but everything on the page required your full attention.

The browser alone couldn’t display the whole site. To access features like the calculator, search engine, and mail function, integration had to be added onto a separate mobile application. This was the case for common websites throughout the 90s and early 2000s, like The Washington Post, CNN, and The New York Times. Since then websites have progressed from being web pages to mobile applications.

Nowadays, new apps such as Facebook Messenger and Snapchat are being run as full-fledged mobile applications so that any smartphone would be able to run them. Apps are not only needed for a browser to function but also to be sold or used on a smartphone. I can easily imagine a user accidentally sending an email on a phone that they didn’t log into, causing large financial losses. It turns out that only a full-fledged mobile app had the the chance to do that.

As a result, the importance of user experience in website design has become higher than ever before. The responsibility of making a great mobile-friendly website was left to developers, rather than website owners. As mentioned before, there has been a shift in what design is created for mobile and what is just web design.

 

 

 

Many developers, designers, and management consultancies have shifted to developing tools that allow users to customize their websites to fit their particular needs, rather than acceding to browser standards. These tools tend to be user-friendly, fast, and easy to use, and they dramatically improve the user experience.

While many web design elements are created on top of HTML, there are other design elements that web designers may need to use in order to create a positive user experience.

In order for users to engage with your website effectively, you are meant to have a design that’s fully focused on the user. The greatest of all design focuses is on making your website aesthetically pleasing.

Aesthetics stimulate the senses of pleasure and delight, and in an age where many products, including furniture and clothes, are constructed with incredibly precise detail, a website is an “extravagant” part of a website.

Putting effort into make your website aesthetically pleasing makes your users feel sought after and desired.

A great way to improve your visuals is to use engaging colours, imagery, typography and layout. Good design highlights anything that is out-of-place, makes the user feel their needs are being recognized and helps them form a positive emotional association with your brand.

A lot of your website is going to be about navigation, so your website needs to work seamlessly with other websites on the internet and the devices they come with.

In any modern-day website, it’s likely that a lot of the HTML code has been implemented behind the scenes to enable responsive design to work across different devices and browser configurations — this is called “device bandwagoning,” and it very quickly becomes a design trend that is not based on strong user experience research. Poor usability results in lost sales and traffic to your website, so researching properly on the internet is a big part of web design.

A research snippet on the embedded file, where the keyword responsive design is hidden, reveals that research had found that 68% of users are “not sure” about responsive design. This shows that even users that consider responsive design to be important do not search for it on the internet, and are unaware of the considerations that go into designing a responsive site.

Furthermore, this snippet shows that websites can be responsive and not cause any issues, and vice versa: 69% of users say they are “not sure” about responsive and fluid sites. It is important things users are aware of and search for, such as responsive design, not just “futuristic” elements like fluid or responsive websites.

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Quangtri

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Electric cars and clean energy

When we refocus our thoughts on the world around us, and stop looking at only the things that can be changed—think about all the cars on the road right now. You may be surprised to learn that electric cars are faster than gasoline ones on a few key metrics: acceleration, top speed, braking distance, and battery capacity. So what gives?

The decades ahead will see a proliferation of electric cars as private ownership becomes the mainstream choice for personal transportation. gasoline will be largely replaced by battery-powered cars as well, though perhaps not for many decades. As a result, we will need strategies for securing long-term physical storage of our car if we want to drive on public roads when charging is not an option.

People are embracing clean energy, donating their power for use in the collective. But what you don’t hear about as much is the ethics of driving an electric car. The technology is sound, but is it ethical to use it so heavily? Or could it be exploited by people who want an edge over others?The good news is that there are plenty of people thinking about these issues and coming up with solutions that don't compromise on driving or driving well.

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Ketab Posts 1

کتاب چیست؟ مروری بر تعریف و مفهوم «کتاب»

این نوشته را اولین بخش از فصل دوم کتاب‌خوانی می‌دانم. اگرچه برخی از بخش‌های انتخابی فصل قبل هنوز مانده است.

۱- نگاهی به تعریف و تاریخ

تعاریف مختلفی از مفهوم کتاب عرضه شده است. مثلا ویکیپدیا:

کتاب مجموعه‌ای از صفحات نوشته‌شده، مصور، چاپ‌شده یا صفحات خالی (صفحه سفید و نانوشته)؛ ساخته‌شده از جوهر، کاغذ (ورق)، پوست حیوانات یا مواد دیگر (چسب، نخ و…) است که معمولاً از یک طرف یا سمت به یکدیگر محکم شده یا متصل می‌گردند. هر برگه در کتاب، ورق و هر سمت یا روی هر ورق، صفحه نامیده می‌شود.

تعاریف سایر لغت‌نامه‌ها از کتاب، در واقع تعریفی از کدکس است که در ادامه خواهد آمد.

 

https://ketab.ir/Stat/state/index.html

 

 

پنج هزار سال از تاریخ شروع کتاب می‌گذرد. حدود ۴۵۰۰ سال پیش، اهالی بین‌النهرین از لوح‌های گلی برای  ثبت مسائل حکومتی یا مالی استفاده می‌شد (اغلب از نوع شمارش). فرم امروزی کتاب (که شاید بتوان نام دیروزی را نهاد با توجه به ظهور کتاب‌های الکترونیک) حدود ۱۸۰۰ سال پیش برای نوشتن متون مذهبی مسیحیان شکل گرفت.  به این صورت که نوشته‌هایی روی پاپیروس یا چرم نوشته می‌شد و سپس آن‌ها را با استفاده از ابزاری متناسب به هم می‌دوختند.

 

https://ketab.ir/Stat/state/index1.html

 

 

حدود ۱۴۴۰ بود که گوتنبرگ ماشین چاپ را اختراع کرد و به نوعی باعث شد به نوعی عدالت در دسترسی به متون یک مرحله به پیش رود.  فرایند آماده‌سازی کتاب چاپی حتی اکنون هم به لحاظ تکنولوژیک شبیه گذشته است. فقط ابزارها تغییر کرده‌اند. اگرچه اکنون دیگر نیازی نیست از یک کتاب هزاران جلد بزنید تا صرفه داشته باشد. می‌‌توانید حتی ۱۰ جلد کتاب را به دستگاه چاپ دیجیتال بدهید تا برای شما آن را چاپ کند و البته گاهی صحافی در خود آن دستگاه و گاهی در یک دستگاه جانبی انجام می‌شود.

 

https://ketab.ir/Stat/state/index2.html

 

 

اگرچه حدود ۵۰ سال پیش لامپ کاتدی اختراع شد تا بتوان تصویری از یک کتاب را در صفحه دید، اما تا پیدایش واقعی یک کتاب الکترونیکی ۳۰ سال طول کشید. تا همین چندی پیش (15سال) که ال‌سی‌دی و ال‌ای‌دی‌های امروزی نبودند، نگاه کردن بلندمدت به یک مانیتور برای دراز مدت مانند چشم‌کُشی بود!  بله سال 1999 اولین کتاب الکترونیکی به نام Nuvomedia’s Rocket شکل گرفت. توجه کنید چندین سال بعد از اینترنت، آمازون، گوگل و … از نظر خود من هم عجیب است.

 

https://ketab.ir/Stat/state/index3.html

 

https://ketab.ir/Stat/state/index4.html

 

https://ketab.ir/Stat/state/index5.html

 

https://ketab.ir/Stat/state/index6.html

 

https://ketab.ir/Stat/state/index7.html

 

https://ketab.ir/Stat/state/index8.html

 

https://ketab.ir/Stat/state/index9.html

 

 

 

 

 

 

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A cell phone, short for cellular phone, cell phone or hand phone, can make and receive phone calls over a cellular radio frequency signal while the user is traveling in a phone service zone. Cell phones are used mostly by people talking on the telephone for personal purposes, but now these devices are being used by many businesses and even by the public for making phone calls. In the United States alone, there are more than three million cell phone users. That is a lot of cell phone users!

The traditional telephone systems use an Analog signal processing (ASP) system to convert voice signals into electrical pulses which are sent to the CPU via the radio transmitter. Modern telephone systems also use digital systems to process the analog signals. The modern mobile phone uses a different system using digital and analogue technologies. It is called GSM, which stands for Global System for Mobile Communication.

Digital technology allows the communication data to be processed efficiently by a demodulated analog signal processing system. This is done by the CPU by interpreting the received radio frequency signals. The advantage of a digital signal processing system is that it uses only one CPU instead of two or more processors using analogue technology. The demodulated analog signal processing systems are able to process high frequency signals at much higher bandwidths than the conventional systems. As a result they can process more data at faster speeds. The demodulated analogue system is also able to process more data in the same amount of time and for lower power consumption than the conventional systems.

There are a few factors that need to be considered in a phone's GSM / GPRS phone design before choosing the best handset. The most important factor is the data rate. A good demodulated digital signal processing system needs to be able to process signals of more than 3 Gigabits per second. The minimum rate that a phone should have is the average rate of the top five wireless networks, which is around 9 Gigabits per second.

There are three different types of cell phone technology currently, CDMA, TDMA, and GSM. CDMA is another type of cell phone technology where the cell phone has to receive the information at a preset point in time and be ready to accept it before making the call. When the two wireless companies decided to use the CDMA system, the technology has been used in many different cellular phones since then. However, there are many different brands of CDMA phones available, and users must carefully choose the best one for their personal needs and preferences. For a long time, the CDMA system remained the most popular and cheapest amongst cell phones.

The next technology, TDMA, operates very similarly to CDMA except for the fact that it does not require a base station. Instead, the user connects the cellular phone line directly to a receiver, which can determine the information that is to be sent or received. This type of technology is commonly referred to as CDMA plus, and some of the earliest CDMA phones use this system. Since TDMA phones are more expensive, they are better suited for smaller business and personal uses, and users prefer them over CDMA phones because they are easier to use and understand.

The third type of mobile phone is known as GSM. It stands for "Global System for Mobile Communication," and it was the first type of cellular phone technology to be used. GSM uses a transceiver chip that receives data at regular intervals from a Global System for Mobile Communications receiver. Once the data is received by the chip, it is converted into a digital signal that can be sent over cellular phones. Although this technology has been around for a while, it was until recently used in the global market, but it has recently been brought back into the American market. Nowadays, more people are switching back to GSM cellphone service.

As you can see, there are a variety of different types of mobile phones that you can use and not all of them will be suitable for your needs. When looking to buy a new phone or plan, you need to look at a few features first. If you do not already have a cellphone service provider, you may want to think about using a reputable one instead. Once you know exactly what features you are looking for and what you need from a mobile phone service, you can begin your search for the best deal. You may also want to check out your local phone store for more information on cellular phones. They will most likely be able to offer you a good deal on a cellphone plan or even a new cellphone.

 

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What is SEO

The first step of Search Engine Optimization (SEO) is to make a website visible on search engines. This means making a website's URL and keywords visible. Once you have ranked for your desired keywords, you can start working on increasing traffic to the site and converting it into leads, which in turn will increase conversions for your business.

In order to rank higher in search engines, there are many things that you need to do and the following points are just a few of those:

- Use different SEO tools to analyse your site's footprint online

- Create relevant content that is rich in keyword research

- Update content regularly with fresh new information

- Optimize images for SEO (this includes adjusting the file size as well as adding captions)⏤

SEO is the acronym for search engine optimization, a process used by content creators to increase their page ranking in search results.

 

The goal of SEO is to increase traffic to a webpage from an external source, such as a search engine. Search engines have created algorithms designed to pick up on what users want when they perform web searches. Optimizing your webpage with keywords and phrases that are likely to be searched for increases your chances of appearing in the top results for those phrases, and subsequently receiving more traffic from those searches.

 

Seo can be applied strategically across numerous platforms including social media sites, blogs, and videos. By utilizing different channels of online distribution simultaneously, you are ensuring that each platform is optimized with relevant content that will allow you to build authority in that specific niche while also spreading your message across other. Search engine optimization (SEO) is the process of affecting the visibility of a website or a web page in a search engine's unpaid results—often referred to as "natural", "organic", or "earned" results.

The earlier your site appears in the result list, the more visitors you will get, and these visitors might turn into customers. A lot of people think that Search engine optimization is hard, but it's really not. SEO is something you can do yourself, and there are tons of tools to help you accomplish it.  For example, I wrote this article in about 2 hours and used free tools to optimize it for search engines. You can do the same thing with your blog posts or website pages. There's no magic here: just a straightforward guide that explains how to use SEO for newbies like me and you! Who knows? If we get a few hundred shares on social media, this could be your next big break as an internet celebrity--or at least as an expert in the niche!

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