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  Build route graph of Hurricane Sandy

Hurricane Sandy swept US east side and landed in New York, it killed 113 persons and incurred 50 billion US dollars economic loss. Sandy is also considered as the most expensive hurricane. We will now use matplotlib and basemap libraries in Python to build a route graph of Sandy. Below is the animated GIF. Shadow is added in the graph to show the time at night, we can see from the graph that Sandy stayed a while in Panama after emerging, then it went through Cuba and became Hurricane-2. Late...

   Hurricane Sandy,Route graph,Python     2012-11-17 07:58:13

  Shopify and eBay Partner Up In Mutually Beneficial Deal

Earlier this year, in July to be precise, one of the world's largest ecommerce platforms, Shopify, and one of the world's biggest online marketplaces, eBay, announced that they are partnering up in such a way that would benefit both these companies, but also the people who buy and sell on them. How both Companies Win Shopify is one of the fastest growing ecommerce platforms out there, with the last numbers showing more than 360,000 stores being run on the platform. Their revenue has been on a s...

   BUSINESS, ECOMMERCE, NEWS, EBAY, SHOPIFY     2017-11-25 17:38:17

  How to be an excellent programmer

To use a programming language is very easy for a programmer, but it's a dream for many programmers to be an expert software developer. There are five levels of programmers: Novice, Senior novice, competent, proficient, and expert. Most programmers are senior novice. And programmer living in this level are a lot of people who have 1 to 10 years work experience.As a programmer, how to find the bottlenecks for your improvement and how to improve yourself quickly? This is really not an easy question...

   Programming,Tips,Habit     2013-03-26 09:53:38

  Symbian is dead

Although Nokia has repeatedly indicated that it will give up Symbian, but no one thought their actions would be so fast. This morning, some people from Nokia Italy said Symbian's life will be ended prematurely. The source revealed some information of Symbian's future.  The Nokia 808 will be equipped with the Symbian Belle FP1 system, Nokia will soon provide updates to this hand phone with Symbian Belle FP2, the platform will no longer receive any updates there after..Of course, this also me...

   Nokia,Symbian,Death     2012-05-24 04:57:16

  Those interaction methods we can play with

Smartphones have become one important part of our lives, the phone apps also play more and more important roles. They can help us live through the boring time or help us connect to our close friends fat away from us or help us get information,etc. There are also some interesting interaction methods since the birth of smartphones. We can play with them while we interact with the smartphones. Here we summarize some of them. 1. Shake Since WeChat introduces the Shake method to find people which yo...

   Interaction,Mobile device,Google glass     2013-05-07 05:21:15

  Using MemoryMappedBuffer to handle large file in Java

When handling large files, it will largely affect the process speed while using traditional FileInputStream, FileOutputStream or RandomAccessFile since they trigger lots of read and write operations. In Java NIO, a new way of handling large file is introduced which is to use MmeoryMappedBuffer to create memory mapped file. Memory-mapped I/O uses the filesystem to establish a virtual memory mapping from user space directly to the applicable filesystem pages. With a memory-mapped file, you can pre...

   JAVA,IO,NIO     2015-11-13 01:58:08

  HeartBleed: OpenBSD now starts to clean up OpenSSL

Since the disclosure of HeartBleed bug in OpenSSL, some arguments emerge around the safety of OpenSSL, the largest open source SSL/TLS library used by large number of servers, applications. Some people are even starting to create their own version of SSL library. This includes OpenBSD, a famous Unix like open source operating system. Just a few days after the HeartBleed bug, OpenBSD forked a new branch of OpenSSL and started to clean up the forked branch and plans to merge it to its own cod...

   HeartBleed,OpenBSD     2014-04-15 04:21:26

  Resolve stylesheet_link_tag fails to work in Ruby on Rails

When developing Ruby On Rails application, developers sometimes will see an unexpected behavior where the application cannot be loaded due to "TypeError: Object doesn't support this property or method" when invoking stylesheet_link_tag. The symptom looks like  And the Rails log will show something similar to below The error occurs because there is some problem finding the correct assets which are located in app/assets. To resolve the issue, you can following below steps. Add gem 'coffee-...

   RUBY ON RAILS,STYLESHEET_LINK_TAG,JAVASCRIPT_INCLUDE_TAG,TYPEERROR     2016-10-14 03:59:11

  Sony is to release PlayStation4 in 2015

According to Japanese media, Sony may release its flagship game console PlayStation 4 in the Christmas 2013, codenamed Orbis, As the source of the message is very reliable, so the possibility of a new generation of Sony PlayStation 4 game console to the market next year is still quite large. Sony has registered the Orbis domain name, but people are still unable to obtain relevant news on the Orbis website. The release plan on the Sony PlayStation4 game console will be officially launched this s...

   Sont,PS4,PlayStation,High resolution     2012-04-04 08:44:13

  Using msmtp to replace sendmail

sendmail is a mail client in Linux with many vulnerabilities and tedius configuration steps, many system administrators have disabled using it. Then how do we know what happens if a crontab script executes with error? Actually there are some replacements for sendmail, one is ssmtp, but this application is no longer maintained, we even cannot find its source code on Google. Fortunately, we can use msmtp to replace sendmail. The address : http://msmtp.sourceforge.net/ 1. Installation After downloa...

   sendmail, msmtp, replacement     2012-09-27 11:41:48

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