By putting two antique computers together, he created an accordion

I can't believe it's still 8-bit music. Accordion is an uncommon musical instrument in daily life, which has a history of 200 years. It is a kind of musical instrument with classical temperament. An ordinary accordion has two separate keyboards, each of which is held by one hand. Users need to push and pull the accordion

2023-11-24 IT Information 我要分享

How to add a heat map when drawing an evolutionary tree by Evolview

This article will explain in detail how to add heat maps to Evolview when drawing evolution trees. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article. Add heat map Evolvie to Evolview when drawing evolution tree

2022-06-01 Development 我要分享

What does the Java decorator pattern mean?

This article mainly explains "what is the meaning of Java decorator mode". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the meaning of Java decorator mode". First, define the design of decoration pattern

2022-06-02 Internet Technology 我要分享

Finding Sessions with High CPU Usage

If database server CPU usage is showing 100%, or high 90%, DBA needs to find out which session is ho

2022-06-01 Database 我要分享

How to configure SSL in Liferay

Liferay how to configure SSL, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain for you in detail, people with this need can come to learn, I hope you can gain something. Liferay docker filesDo

2022-06-02 Internet Technology 我要分享

Ansible + tornado + MongoDB

Http://blog.csdn.net/smallfish2983/article/details/38078019 according to the above guy wrote, beginners, do not spit blood, the basic function has been realized. Root@ubuntu12:~

2022-06-01 Database 我要分享

Spending 1.65 trillion won to build a factory, Apple Optical supplier LG Innotek is actively preparing the periscope camera needed for the iPhone 15 model.

CTOnews.com reported on December 24, citing South Korean media The Elec, that Apple Optical supplier LG Innotek plans to invest 1.65 trillion won (about 9.007 billion yuan) in a new factory for Apple next year.

2023-11-24 IT Information 我要分享

How to take a picture of snow in winter? share a few tips to make snow photos look better.

When winter enters the coldest time, snow will fall in many places one after another. This article shares some tips for shooting snow scenes. I hope everyone can take beautiful pictures when it snows! How to set camera parameters to increase exposure compensation when shooting a large area of white (such as snow)

2023-11-24 IT Information 我要分享

Is a vacuum really nothing? Seriously, you may have misunderstood it.

A few days ago, someone asked me such a question: "since there is nothing in the vacuum, it should be absolute zero, right? will the illumination vacuum produce high temperature?" Before you answer this question, you have to figure out what a vacuum is. 01. Is there a devil in the vacuum? The original meaning of vacuum is "space without matter". V

2023-11-24 IT Information 我要分享

Why is hydrogen leakage still a headache for NASA rocket launch?

On September 7, NASA's giant rocket space launch system (SLS) uses a mixture of liquid hydrogen and liquid oxygen as fuel. This kind of fuel has compact volume and high combustion efficiency, but its inherent properties also bring a series of problems that can not be solved. According to industry insiders, NASA

2023-11-24 IT Information 我要分享

Large layoffs and ChatGPT attack, how to "survive" for employees in the technology industry

March 20 news, since last year, technology companies have laid off a large number of employees, coupled with the accelerated development of artificial intelligence such as ChatGPT, more jobs begin to face the risk of being replaced, and workers in the technology industry are facing more and more pressure. Some professional experts and senior figures in the technology industry said

2023-11-24 IT Information 我要分享

CentOS 7 File system and Log Analysis

When dealing with all kinds of faults in the Linux file system, the symptoms of the fault are the most easy to find, and the cause of this fault is the key to the final troubleshooting. Familiar with the common log files in Linux system, understand the analysis and solution of general failure

2022-06-03 Servers 我要分享

Analysis and troubleshooting of Linux system security

When dealing with all kinds of faults in Linux operating system, the symptoms of the fault are the most easy to find, but the cause of the fault is the key to the final troubleshooting. To be familiar with the common log files in Linux operating system and to understand the analysis and solution of general faults will help administrators to locate quickly.

2022-06-02 Servers 我要分享