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The Mechanical Universe

Draw with your finger


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How to Check Your PCs TPM
One of the requirements for Windows 11 is TPM version 2.0. If you have Windows 10 and you have TPM version 2.0 module, and it's enabled, then you can install and run Windows 11. More ...

Processor Interrupts
An interrupt is a signal to the processor indicating an event has occurred that needs immediate attention. When an interrupt occurs, the processors normal path of execution is interrupted in order to run a routine to service the interrupt requester. More ...

PowerShell Script to Show Last 5 Errors in Event Log
The Windows System eventlog is one of the most powerful components of the operating system because it keeps a log of everything that happens. Here I provide a powershell script to display the last 5 error entries in the log. More ...

Introduction to HTML
A Web server sends the response to the client browser with a set of instructions written in HTML (HyperText Markup Language). HTML consists of tags that define the structure of a web page. It is the standard markup language for documents to be displayed in a web browser. More ...

Regular Expression Basics : How many Matches?
A Regular Expression (regex) is a sequence of characters that define a pattern that allows you to search, match, locate, replace, manipulate, and manage text. In this article you'll learn how to use regular expressions to count the number of matches. More ...

Inkscape Text Kerning
Although Inkscape might be considered a vector drawing application, it is also a powerful typographical design program. Actually Text Kerning is not a good title for this article because in it I will cover all the different typographical adjustments you can make in Inkscape. More ...

Minispreadsheet
Minispreadsheet is a tiny extremely easy to use spreadsheet, You can type text into a cell, you type a number into a cell. A formula is a simple list of cells with basic mathematical operators between them. If you change the number in a cell used in a formula in a different cell, the value in the cell with the formula will be updated. More ...

Find Your WiFi Password on Windows 10
One of the most common reasons to find your Wi-Fi password is to use it on another PC or device to connect to your Wi-Fi network. Here's how. More ...

Understanding Modern PC Specifications
There is a huge variety of different PCs available out there. Its no wonder that consumers are confused about what to buy. This article explains modern PC specifications. More ...

Regular Expression: Alternation
In this article you learn how to create an alternation regular expression that will match alternate patterns in a string. More ...

Windows 10 Shortcut to Turn Laptop Camera On or Off
To prevent hackers from sneaking a look at you, turn your laptop camera off. This article shows you how to place a shortcut on your desktop that you can use to quickly turn your laptop camera on or off. More ...

Inkscape Layers and Z-Order
Inkscape's use of the Z axis is represented by layers and is called z-order. When you first draw an object on an empty canvas, it has a z-order of 1. If you draw a second object, it has a z-order of 2. If you draw a third object, it has a z-order of 3 and so on. More ...

Online Color Coded Resistor Calculator
To determine the resistance value of a color-coded resistor, select the colors matching each band from the drop-down lists. 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 ...

Inkscape Text on Path
One of the most amazing things Inkscape can do, and one of the easiest, is to place text on a curved path. You can even make the text go in a circle. 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 ...


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