Practical Concept Search Results

How To: Solve square roots in algebra

In this lesson we will learn about one of the most important concepts in algebra SQUARE ROOTS. The square root of a number m is another number n that satisfies the following formula: m = n x n. You can also say that m is the square of n. The opposite of squaring a number is finding its square root. You can use the radical symbol to indicate that the square root of m is n:

How To: Get some mime practice exercise

Mark Wenzel pioneered the concept of mime performances at theme parks, becoming the resident mime at Sea World of San Diego, where he entertained more than a million visitors a year for eight years. Now he trains mimes for all of Sea World's aquatic parks. He shows you some practice exercises in this video series.

News: Intel Labs Chief Reveals the Secrets to Taking Augmented Reality Mainstream

Because augmented reality is still so new to so many people, there are a number of would-be experts opining online, often repeating basic facts anyone with a spare 15 minutes can find on their own. That's why it's important to point out when someone delivers what could be considered the ultimate cheat sheet for ramping up your AR IQ if you're unfamiliar with the finer points of the space.

How To: Generate Private Encryption Keys with the Diffie-Hellman Key Exchange

When we are building programs that communicate over a network, how can we keep our data private? The last thing we want is some other lousy hacker sniffing our packets, so how do we stop them? The easy answer: encryption. However, this is a very wide-ranging answer. Today we're going to look specifically at how to encrypt data in Python with dynamically generated encryption keys using what is known as the Diffie-Hellman key exchange.

HoloLens Dev 101: The Unity Editor Basics

With any continuously active software, it can start to become fairly complex after a few years of updates. New features and revisions both get layered into a thick mesh of menu systems and controls that even pro users can get bewildered by. If you are new to a certain application after it has been around for many years, it can be downright intimidating to know where to begin.

Networking Foundations: Subnetting Madness

Hello everyone! How's subnetting going? Did you practice a lot? I hope you did, but even if you didn't we will go through some more examples so you can be feeling confident after reading this article. It's all about that bad boy binary!

How To: Build a Directory Brute Forcing Tool in Python

While attempting to hack a web app, there may come a point where the attacker may have to escape the default directory in order to access unauthorized files. This is known as a directory traversal attack. Much as the name implies, this attack involved traversing the servers directories. But in order to move to an unauthorized directory, we need to know where those directories are. Today we'll be building a tool to brute force these directory locations based on HTTP response codes. Before we g...

Networking Foundations: Dynamic Host Configuration Protocol

Hello ladies and gentlemen, PySec here coming at you with another informative(hopefully) article for you all. In the last tutorial, we finally finished our discussion about IP Addressing and I intentionally didn't mention a really important concept with which IP Addressing wouldn't be feasible without it. What I'm talking about is how our network device gets the IP Address in order to communicate with other devices on the network/Internet. There are many different ways for that to be accompli...

Hack Like a Pro: Python Scripting for the Aspiring Hacker, Part 2

Welcome back, my fledgling hackers! In an earlier tutorial, I introduced you to probably the most popular scripting language for hackers, Python. To become a professional hacker, you need to have some scripting skills and Python is a good choice if you want to master just one. In this latest guide, I will expand your background in Python and offer you a tidbit of Python code to whet your appetite for all of the hacking to come.

How To: Play French horn

In this video series on how to play French horn, learn basic tips and techniques for playing this brass instrument, including how to hold the horn, form proper embouchure, and changing pitch using your lips, the rotary valves, or by putting your hand in the bell. Also learn some intermediate French horn skills involving orchestral music, like how to play slurs, legato, glissando, staccato, and accent notes. Finally, get some practical care and maintenance tips for your horn, as well as some b...

How To: Prune and care for trees and shrubs

Trees, shrubs, and hedges in your home garden have not only aesthetic appeal because of their beauty but also are very practical. Trees offer shade from the sun, and hedges provide privacy for your yard. These plants however, must be well taken care of to continue to provide their beauty and function. Tree pruning is an essential part of landscape maintenance that must be done regularly to ensure that your trees continue to look beautiful and grow a large healthy canopy. Similarly, hedge trim...

How To: Do self defense techniques for women

In this video series, our expert Aikido master is able to show you and any woman how to easily and effectively defend against an assailant, man or woman, even when surprised. You will learn practical techniques like screaming and scratching as well as many others. Knowledge is power and by learning these techniques you will not only be able to fight off an attacker but you will also be more self confident and aware of your surroundings so as not to be a surprised victim. Who knows, these tips...