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The Mechanical Universe

Draw with your finger


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Capacitors
A capacitor is an electronic component that can store electric charge. A capacitor is constructed with two conductive plates separated by an insulator called a dielectric. More ...

IPv6 Address Compressor Expander
Enter the IPv6 address in the top text box. Click on the appropriate button: Omit Leading Zeros, Consolidate Zeros Segments, Expand Zeros Segments, Replace Leading Zeros. The formatted address will appear in the bottom text box. More ...

Fiber Optic Bend Radius Standards
Fiber optic cable can be damaged by placing too much tension on the cable or bending the cable excessively during installation. Excessive bending or too much pulling force can permanently damage the fiber by causing micro cracks. More ...

Use PowerShell and WMI to Get CPU Information
Suppose you want to get some information about the CPU in your computer. Can you remember which Control Panel utility will provide that information? If you use a PowerShell script to access WMI you can always get the information you want no mater how they rearrange Control Panel. More ...

Learn Assembly Language Programming on Raspberry Pi 400
One of the easiest ways to learn assembly language programming is on the Raspberry Pi 400. The Raspberry Pi 400 is a complete personal computer built into a compact keyboard. More ...

Regular Expressions Lookarounds
In this article you learn how to match a pattern only when it comes after another pattern (or after not that pattern) or only when it comes before another pattern (or before not that pattern). More ...

How SSL (Secure Sockets Layer) Works
SSL is a security protocol standard that encrypts communication between a web browser and a web server. Any organization that uses their website to transmit, receive, store, or display confidential or sensitive information such as passwords, credit card or bank account numbers, social security numbers, and so on, needs to use an SSL Connection. More ...

Self-Esteem and Success
A person with high self-esteem believes that they are a worthwhile and important person. A person with low self-esteem believes that others are better than them, and that they deserve to treated badly by others. More ...

How to Draw an Airplane
Drawing an airplane is much easier if you first construct two-point perspective guidelines. This article shows you how to draw an airplane in ten easy steps. More ...

Introduction to Operating Systems
An operating system is software that acts as an intermediary between a computer user and the computer's applications and hardware. An operating system can be viewed as a resource allocator. Resources might be CPU time, memory space, file storage space, and input/output (I/O) devices. More ...

Create Your Own Database Using Only Notepad : CDV
In this article you learn how to create a database using only a basic text editor along with any web browser. You won't believe how simple and powerful this method is. The database we design will have powerful features. More ...

Easy JavaScript FileReader Code
The JavaScript FileReader object allows web pages to read files stored on the user's computer. Files may be selected using the input element, or selected with a drag and drop operation. More ...

Minispreadsheet Instructions
This is the instructions for Minispreadsheet. Minispreadsheet is a tiny extremely easy to use spreadsheet. You can type text or a number into a cell, that's it. You can also apply simple formulas to a cell. More ...

Html5 section vs article Element Best Practices
Many new semantic elements where added to HTML5. The purpose of most of these new elements was easily discernible. But a web search reveals that there is much confusion about the relationship between the article and the section element. More ...

Regular Expressions Subexpressions
In this article you learned how to use subexpressions to rearrange matches in a regular expression and how to replace the value of a subexpression match in the results. More ...

JavaScript to Copy and Paste Text to the Clipboard
In some applications, rather than the user's selection, you may want to copy the contents of a specific html element to the clip board. Or when the user initiates a Paste, you may want to direct the contents of the user's clipboard to a specific html element on the webpage. Here is the code for this. More ...


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