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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.

Social Engineering: How to Use Persuasion to Compromise a Human Target

Social engineering makes headlines because human behavior is often the weakest link of even well-defended targets. Automated social engineering tools can help reclusive hackers touch these techniques, but the study of how to hack human interactions in person is often ignored. Today, we will examine how to use subtle, hard to detect persuasion techniques to compromise a human target.

How To: Do finger tutting

In this tutorial, we learn how to do finger tutting. There are different positions in tutting to help you get to a new one, creating new paths while learning. First, place both your arms on top of each other, then move them adjacent to each other by raising them and popping them. The praying position is also very popular. When you are tutting, think about common positions that are used a lot, then think of how you can get to the tutting by doing different switches and use your fingers more ef...

How To: Play a slurred 3 octave G major scale on violin

If you want to improve your violin technique then this how to video is the place to start. This video teaches you to play slurred 3 octave G major scale. This exercise, based on the Galamian "Contemporary Violin Technique," is designed to help you increase your comfort and agility in all positions, develop confidence and accuracy in all positions, and improve coordination. When practicing this exercise you should memorize fingerings, bowings, and positions; use the whole bow on every slurred ...

How To: Play a G major scale in 3 octaves on the violin

If you want to improve your violin technique then this how to video is the place to start. This violin lesson teaches you to play a G major scale in 3 octaves. This exercise is designed to help you increase your comfort and agility in all positions, develop confidence and accuracy in all positions, and improve coordination. When practicing this exercise you should memorize fingerings, bowings, and positions; use the whole bow on every slurred stroke, half the bow on the martelé strokes, and a...

How To: Play a 3 octave G major scale on the violin

If you want to improve your violin technique then this how to video is the place to start. This video teaches you to play 3 octave G major scale. This exercise is designed to help you increase your comfort and agility in all positions, develop confidence and accuracy in all positions, and improve coordination. When practicing this exercise you should memorize fingerings, bowings, and positions; use the whole bow on every slurred stroke, half the bow on the martelé strokes, and at the very tip...

How To: Do a swingout from closed position in swing dance

Swing dancing dates back to the 1920's, where the African American community, discovered the Charleston and the Lindy Hop, while dancing to contemporary Jazz music. The term "Swing dancing" is used to refer to one or all of the following swing era dances: Lindy Hop, Charleston, Shag, Balboa and Blues and extends to include West Coast Swing, East Coast Swing, Hand Dancing, Jive, Rock and Roll, Modern Jive, and other dances developing in the 1940s and later.

How To: Dance the open-position Jitterbug

The Jitterbug is a popular swing dance, also known as the Lindy Hop and East Coast swing. This how to video demonstrates the open position Jitterbug. These steps are quick and easy to learn. Watch this dance tutorial and you will be doing the Jitterbug in no time.

How To: Nail wall plates into concrete

After the wall frames are standing in position, the bottom wall plate needs to be nailed down into position. Hand concrete nails can be used if the concrete slab is fairly new (less than two weeks old). An explosive nail gun is another option. Watch this video tutorial for a demonstration on how to nail wall plates into concrete.

HoloLens Dev 102: How to Add Holographic Effects to Your Vuforia ImageTarget

Welcome back to this series on making physical objects come to life on HoloLens with Vuforia. Now that we've set up Vuforia and readied our ImageTarget and camera system, we can see our work come to life. Because in the end, is that not one of the main driving forces when developing—that Frankenstein-like sensation of bringing something to life that was not there before?

How To: Top 7 Surface Book Hacks for Artists

The Microsoft Surface has been the go-to device for many professional artists since its initial release back in 2012. Since then, the Surface line has continued to offer customers a portable, high-powered machine that's a near perfect value for both casual and professional artists. And the Surface Book is its best model yet—a full laptop convertible with a detachable screen and a dedicated GPU.

How To: Lose Stomach Fat in 10 Steps?

As our lives grow busier, we get secluded in our indoor activities, consuming all types of fatty junk food and what not. Obesity is a very obvious yet unfortunate outcome of our unhealthy living standards. With it comes the predictable rush towards efforts to lose weight. Consequently, we have designed hundreds if not thousands of ways to lose fat and grow slimmer. To ease out your choice of ways, here is a list of the best ways to lose stomach fat. Step 1: Don't Eat Sugar

How To: Make a Throwing Knife into a Mini-Harpoon

Greetings, all ye happy miscreants! In my last article, I showed a certain technique for throwing a knife without spin. If you haven't read that article yet, do so now. This article will be useless to you if you have not read my article on proper throwing technique. Anyway, in this article, I will show you a cool trick you can do with my throwing technique.

How To: Replace Your Dryer's Belt

Over time, the dryer belt can become hard and brittle when the drum is turning loud noises such as squeaking, squealing or thumping noises can occur. Replacing the belt is an easy task for the do-it-yourselfer. All that’s required is a few simple tools. Here’s a step-by-step guide to help you install a new belt in your dryer.

How To: Lose weight fast using Jedi mind tricks (and without lifting a finger)

Everyone could benefit from shedding a few pounds, but what about those who need to lose a little bit more weight? Exercise isn't an option for everyone, with as busy as our lives are right now. It's hard to go running and do a few pushups when you have a hard enough time scheduling your day already. But if you're looking to shed a couple pounds here and there— without lifting a finger— this two-part video will help you out with some Jedi mind tricks!

How To: Give someone a headache in Photoshop

Use two photos, a main image and a photo of a cracked egg which will be your source of the headache. Drag the egg into the main image by holding down the shift key. Resize the egg. Change the opacity down to 50%. Zoom out. Command T flips the image. Hold option and right click. Position the image. Add layer mask icon. Bring back to 100%. Brush. Go to color palate and make sure black paint is on. Paint away all, but the cracked part of the egg. Add the black and white layer, only the egg porti...

How To: Pull the refrigerator handle switch prank

Pranks are the world's favorite pastime. Everyone loves a good prank, and there's nothing better than keeping someones stomach empty. Imagine the pain and suffering one would endure if he or she could not eat because the fridge will not open. Most refrigerators allow for reversing the door swing. Normally you also switch the handle. But not if you want to thoroughly confuse the victim of this practical joke.

How To: Build a universal motion alarm to protect your home

This video shows us the method to make a universal motion alarm to protect your home. You will need a reed switch with an alternating contact, a 9V battery with a battery clip, a switch, a buzzer, a small plastic box and a magnet. When a magnet is brought near the reed switch, it switches to the other contact and the switch is open. If the magnet is removed, the switch is closed and the buzzer starts ringing. Make the circuit with correct polarity for battery and the buzzer. Make a hole in th...

How To: Keep your tree from dying

First of all you have to check the root which has started circling. Then notice that there is a dark portion at the bottom of the trunk. You can prevent this problem by avoiding to plant too deeply and not to leave in the pot for too long. You have to plant it at the right depth. Now check the roots of the bigger tree that has died. You shall notice that the roots have started circling around a part and then they stop the circulation to the top of the tree and then the tree dies because it wa...

How To: Upload pictures, embed videos, and publish in Blogger

Radford University demonstrates how to upload pictures, embed videos and then publish them in Blogger. Log into blogger and go to your dashboard page. Click edit posts or create a new post. In the blog editor choose edit image from the toolbar. You can now add an image from a URL or upload one from your computer by choosing the choose file option. Next, choose your image position and size. Then, click the upload image button and then click done. Your image will now appear in your post. To emb...

How To: Identify fruit tree problems

This video describes problems with fruit trees and how to deal with them. One problem is Chlorosis, identified by yellowing leaves with green veins between the sections of the leaf. This is caused by a micronutrient deficiency (usually iron) that results when the tree roots are unable to absorb all the nutrients from the soil. This problem can be temporarily treated with a foliar spray of iron. Another problem is pruning wounds with decay that results when trees are not pruned correctly. They...

How To: Make a spear for hunting in the wild

This is a method for making a native American free point spear using a bamboo stick, bamboo strips and some commonly found items. First take a sea shell and make a hole in it. Make the hole using a pointed stone and pierce an opening in the shell. Make the hole such that the shell fits the bamboo. Now the bamboo has to be split in half and for this you have to find a common stone which has a sharp edge on one side to split the bamboo. This is a common stone found anywhere. Now you have to tak...

How To: Throw a cast net for live bait

The best way to fish is with live bait, but buying bait can be expensive and it isn't always guaranteed fresh. Once you learn how to cast your own bait you will be able to catch large amounts of bait fish on your own, and cut out the middle man. Happy fishing!