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HoloLens Dev 101: Building a Dynamic User Interface, Part 7 (Unlocking the Menu Movement)

In the previous section of this series on dynamic user interfaces for HoloLens, we learned about delegates and events. At the same time we used those delegates and events to not only attach our menu system to the users gaze, but also to enable and disable the menu based on certain conditions. Now let's take that knowledge and build on it to make our menu system a bit more comfortable.

HoloToolkit: How to Add Voice Commands to Your HoloLens App

The HoloToolkit offers a great many, simple ways to add what seems like extremely complex features of the HoloLens, but it can be a bit tricky if you're new to Windows Holographic. So this will be the first in an ongoing series designed to help new developers understand what exactly we can do with the HoloLens, and we'll start with voice commands.

Decrypting [Part 1]: How to Decrypt Caeser Encrypted Texts

In this Tutorial I will show you how you can use the frequency of letters to decrypt the famous Caesar cipher. I hope it is easy to understand and helpful for getting in touch with basic cryptanalysis. If you find any mistakes or have questions feel free to ask me. Finally I ask you to give me feedback which I will take into account for the next part.

How To: Build a Stealth Port Scanner with Scapy and Python

As we're all aware, recon is vital to a successful hack. We need to know everything we can about the target in order to perform the best possible attack. Port scanning is a basic recon concept that is introduced very early in learning proper reconnoissance. The issue with port scanning is that is makes a lot of noise. Every connection to every port will be logged. This is where stealth scanning comes in. Also known as SYN or half-open scanning, stealth port scanning is a bit quieter, and is l...

How To: Use docking accessories to improve your Motorola Droid Bionic smartphone

The docking accessories available to owners of the Motorola Droid Bionic unlock several different functions dormant in the Android smartphones. The Vehicle Navigation Dock allows you to easily access Verizon's GPS system on the go, or give vocal commands so that you stay safe and handsfree with the Droid Bionic. The HD Station Dock allows you to connect your smartphone to a TV and view photos or use applications on the big screen. This guide by Motorola shows you how to access the different f...

How To: Make payment calculations with MS Excel's PMT function

Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 47th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to use the PMT function to calculate payments. Specifically, this video addresses the following topics:

How To: Use the INDEX & MATCH functions in Microsoft Excel

Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 45th installment in his "Highline Excel Class" series of free video Excel lessons, you'll learn how to use the INDEX & MATCH functions.

How To: Remember the parts of the cell

Are you much for science? Cytoplasm. Nucleus. Endoplasmic reticulum. Organelle. These words might sound alien, but breaking down the parts of a cell and their functions will help you remember. This is one of the best ways for cell identification, and it's perfect for science class studying.

How To: Automatically color alternating rows in Excel

This video is a tutorial on using the Conditional Formatting function of Excel to automatically color alternating rows, which helps your eye to follow across the row. This can be done manually with the “Fill Color” button, but if you add or delete rows after applying the shading, the whole purpose is defeated.

How To: Approximate the area under a curve using rectangles

The idea of finding the area under a curve is an important fundamental concept in calculus. Consider a function y = f(x). Now the area under the curve is to be calculated. The area under a curve problem is stated as 'Let f(x) be non negative on [a, b]. Find the area of the region lying beneath the curve y = f(x) and above the x-axes, from x = a to x = b. Note that finding the area under a curve will imply that you are dealing with a non negative function. The way to approach is to divide the ...

How To: Find the antiderivative of a function

This video shows you how to find the antiderivative of a function. By definition, the F(x) is an antiderivative of f(x) means F’(x) = f(x). The small f is a derivative of the capital F, and the capital F is an antiderivative of the small f.

How To: Calculate variance and standard deviation using Excel

This video shows the method to find the variance and standard deviation using Excel. The variance shows the variability of the data points from the median. We find the difference of the median and the mean. We write the formula using '=' sign. The median and data points are put in it by selecting the appropriate cell. The median is made an absolute constant by pressing the F4 key. This is squared by using '^2'. This is multiplied to the frequency using '*'. The result is found for all the dat...

How To: Fire up your metabolism

This video focuses on strategies you can use to boost your metabolism--one-step needed in order to lose belly fat. Obtaining a faster metabolism will train your body to burn more calories throughout the day. The first step to boost your metabolism is through strength training, which means developing leaner muscle mass. This will result in long-term investment for caloric burning. The second step involves exercising in the morning; this will help you burn calories more easily throughout the da...

How To: Create dynamic menus with JavaScript

1. The following steps describes how to Create dynamic menus with html and Javascript. 2. Open the html file in Illustrator. 3. Enter the Menu.js file with <Script> Tag. 4. Create a Bulleted List of the Menus and Its Sub Menus inside a DIV Tag. 5. For Each UI List Create a Mouse over and mouse out Event for Header Menus. 6. For Mouse over Event call a Function named set Menu with MenuSubOne id as parameters 7. For Mouse out Event call a Function named named clearMenu with MenuSubOne id as par...

How To: Use a Hydroponic Seed Starter to produce seedlings

Learn how to make and use a hydroponic seed starter to produce seedlings with this video tutorial. This is a very easy setup to make. Start with a basic metal shelving unit. Hang florescent lights above each of the shelves on the shelving unit. Make sure the lights are balanced for day time. Put a plastic container on each shelf that is about the size of the shelf and tall enough for the rim to sit just below the florescent light tubes. You will need some pecks tubing and some plastic clamps....

How To: How to Clone (Duplicate) Yourself Using iMovie 11or 09 (no downloads) Green Sc

Are you an iMovie user looking to double down on yourself? Well, if so, watch this video and see how to clone yourself, quickly and easily. I mean, who wouldn't want to make two of themselves? It could be so helpful for so many situations! Though cloning may be far in the future, we can still clone ourselves in Videos. Apple's new iMovies, have changed from being small easy video processors to a more complex higher quality Video editing software. This video will use the Green Screen Function ...

How To: Learn about the tools and components used in basic electronics

Electronics are the most important new thing people have created in the last hundred years, and learning how to use them will make you much more able to function in modern society. If you want to learn about electronics without going to a class or anything so formal, this excellent video series will teach you everything you need to know to get started. This video, the first in the series, will teach you about the basic tools and components you'll need to work on electronics projects, includin...

How To: Watch Flash video on an Apple iPhone with the Skyfire web browser app

Now available for download in the official App Store, Skyfire is a mobile web browser that converts Flash video to iPhone-friendly HTML5 on the fly. Because Apple has heretofore not supported Flash video, that's kind of a big deal! In this iPhone owner's guide, we learn how to use and navigate the various features of functions of the Skyfire smart browser. For all of the details, and to get started watching Flash video clips on your own iPhone 4, 3G or 3GS, iPad, iPod Touch or other iOS devic...

How To: Set up Gmail delegation to allow limited access for administrative assistants

When you're personal assistant needs to handle your e-mails for you, it can be quite daunting having to give out your personal account information just so they can have access to your e-mail. And more importantly, having to battle for log in time might also be quite the hassle. With Gmail you can actually delegate your personal assistant so they have access to your inbox and can reply and send messages on your behalf, but they cannot change settings, passwords, or chat on your behalf. In this...