Draw Blood From Hand

We started with our system manager in the previous lesson in our series on building dynamic user interfaces, but to get there, aside from the actual transform, rotation, and scaling objects, we need to make objects out of code in multiple ways, establish delegates and events, ...more

Andre was enjoying the carefree life of a 12-year-old with his friends, riding his bike and playing sports, like all kids that age. Schoolwork wasn't hard for him, and his grades showed that. Then, the headaches began. He lost vision in one eye, symptoms that drove his famil ...more

Microsoft recently released "Seeing AI," an app aimed to help the blind understand their surroundings. As Microsoft puts it, "the app narrates the world around you by turning the visual world into an audible experience." We asked Matthew Chao, the brother of one of our founde ...more

Killing more than 29,000 people each year, infection with Clostridium difficile (C. diff or CDI) is the most common healthcare-associated infection in the US. In a disturbing development, new research reveals recurring cases of the infection are soaring. C. diff is a bacteriu ...more

Type 1 diabetes is an attack on the body by the immune system — the body produces antibodies that attack insulin-secreting cells in the pancreas. Doctors often diagnose this type of diabetes in childhood and early adulthood. The trigger that causes the body to attack itself ha ...more

Bed bugs are parasites not yet known to spread disease — but they cause plenty of irritation. As scientists and landlords search for new ways to deal with the pests, a new study examines how we can deter bed bugs without so many chemicals. While they don't infect us with anyt ...more

Food is both a necessity and a joy. Many people enjoy exploring, cooking, eating, and learning about foods from around the world. But the picture isn't always rosy. A new report from the Centers for Disease Control and Prevention (CDC), highlights the ways and whereabouts of f ...more

Bed bugs are brown and creepy. Could you spot one in your hotel room? A new study reveals most people are freaked out by bed bugs, but only about 35% could identify one. In a new study published in American Entomologist, scientists from the University of Kentucky examined how ...more

Those of us who are actively developing for the HoloLens, and for the other augmented and mixed reality devices and platforms that currently exist, are constantly looking for the next bit of news or press conference about the space. Our one hope is to find any information abou ...more

You may not have heard of visceral leishmaniasis, onchocerciasis, or lymphatic filariasis, and there is a reason for that. These diseases, part of a group of infections called neglected tropical diseases (NTDs), impact more than a billion people on the planet in countries othe ...more

When making a convincing mixed reality experience, audio consideration is a must. Great audio can transport the HoloLens wearer to another place or time, help navigate 3D interfaces, or blur the lines of what is real and what is a hologram. Using a location-based trigger (hots ...more

If you have encountered bed bugs lately, you are not alone. While the pesticides used to fight these pests are losing effectiveness, a fungus shows promise in knocking the bugs out of beds everywhere. Bed bugs, or Cimex lectularius, are parasitic arthropods, part of a broad g ...more

In a world increasingly regulated by computers, bugs are like real-life cheat codes. They give you the power to break the rules and do good or bad without ever leaving your seat. And government agencies around the world are discovering and stockpiling unreported bugs as cyberw ...more

In the past, to see a pre-constructed state of the house that you would one day live in, you had to be able to read blueprints or hire an artist to sketch it out. Later came the ability to have a 3D rendering of that house on a screen, but you'd still have to work hard to envi ...more

If you've been following NextReality, you've surely seen me around, or at least have seen my articles. My name is Jason Odom, aka Subere23, and it's about time for a formal introduction. My background primarily falls in the computer game industry, and I have co-owned a small ...more

The latest update to iOS 10 brought with it a number of great new features. Of these, the one that will likely have the most impact on people's iOS experience in the long term are the new apps and stickers for iMessage. Stickers make up the vast majority of what you'll find i ...more

Whenever I went to the grocery store on a mission for blueberries, I'd inevitably find myself staring at these weird little tomato-looking berries... and wondering what the hell they really were. Tomatoes? Berries? A weird science experiment? Then, I'd set a pint of blueberrie ...more

Thanks to the Edge variants, Samsung's Galaxy S phones are just a few millimeters off in body size when compared to the Note series, and just 0.2 inches smaller when it comes to displays. Now that the two flagship models are almost identical in size—with matching curved displa ...more

The thought of peeling tomatoes for pasta sauces and soups has long been an overwhelming idea for us, one we often steer clear from when reading recipes or searching out new dishes to create. Even the methods that are supposed to speed up the peeling process (like roasting, po ...more

Whether you're a seasoned wine drinker or just beginning to explore the wondrous world of fermented grapes, finding fantastic wine on a budget isn't as difficult as one may think. With these 8 tips, you'll see how and why you need not shell out $45 to get a great-tasting, high ...more

When a headache strikes, I reach for the nearest painkiller. Forget closing my eyes, laying down, or even applying an ice pack—I seek the quickest and most immediate relief possible, and normally that comes in the form of pills. However, fast relief can be found from another, ...more

Chrome apps and extensions are powerful tools for students: they can help optimize your web browsing experience by helping you take notes, check your grammar as you compose documents and emails, and even help you squeeze a little more juice out of your laptop's battery by free ...more

Greetings all. Today I intend to append a new series to my mini-collection of posts. This series will consist of informative guides for the purpose of depicting certain aspects of the White Hat profession that I believe are of profound importance. Furthermore, I will keep thi ...more

Making sure you have the best gallery app available for your Android device used to be as easy as just installing QuickPic. But late last year, Android's top photo-viewing app was sold to a company who is notorious for permission spamming, so QuickPic quickly lost everyone's a ...more

Oven space is scarce on that fated fourth Thursday of November. Even if you can find a spare space for pumpkin pie on the bottom shelf, you risk turkey drippings overflowing from above and ruining your beautiful dessert — not to mention a burnt crust from different temperature ...more

If you don't want to dress up as a vampire, witch, werewolf, or zombie again this Halloween, step things up a notch and go viral. There have been a ton of funny memes and absurd news since last October, so the only hard part is settling on the right one for inspiration for you ...more

When a stuffy nose hits, it feels like breathing clearly and easily may never come again. Allergies, colds, and even changes in weather can leave our sinuses blocked, with medicine seeming like the only option. But don't break out the medication just yet — relieving the pressu ...more

If you've read any health news in the past year or so, you've probably been bombarded with headlines announcing that frequent sitters face certain death, even when you're just relaxing and watching TV at home. From increased health risks and added laziness, sitting is becomin ...more

Fifty-four percent of Americans 18 and older drink coffee every day, and why not? With 100 milligrams of caffeine per six ounces of drip coffee, it's just the morning beverage to wake you up and kickstart your day. You can feel the caffeine surge through your body like the Hol ...more

Many people drink green tea for health reasons, and it's no wonder. This beverage is a superstar when it comes to antioxidant levels, and is being studied for its potentially curative properties on multiple health concerns, whether it's staving off the aging process or fightin ...more

About ten years ago, Western research figured out that green tea was a nutritional powerhouse. After all, in Asian countries where green tea is consumed throughout the day, cancer rates tend to be much lower, although there are probably other factors contributing to that fact, ...more

As was mentioned by the great OTW last week, TOR, aka The Onion Router, has had its integrity attacked by the NSA. In an attempt to reduce the anonymity granted by the service, the NSA has opened a great many nodes of their own. The purpose is presumably to trace the origin of ...more

I've never had a black eye, but I was in a car accident that turned my entire ear dark purple a few years ago. Believe me; it was enough to get more than a few funny looks. Walking around with bruises is never fun, and it's even worse when they're on your face or neck. A blac ...more

With warm weather comes bugs, and with bugs come bites, and with bites come itches. From ticks and spiders to mosquitoes and bees, insect bites come in sundry shapes and sizes, but they all commonly pull an itchy, red reaction out of our bodies. Once a bite fires up our immun ...more

Over the past several weeks, I’ve had the pleasure of test driving Samsung’s next big thing, the Galaxy S4. After putting the GS4 through its paces, I have a clear picture of what this device is capable of. I’ve covered the features of the device before, and now I’ll tell you ...more

Video: . Step 1: Today We Are Going to Draw an Old Man's Face. Let's Start with a Rectangle in Perspective. That's Right, We Should Start with Curving in Some Basic Shapes and Then to Make the Face from That. We Should Put Down the Horizon Line with Two Vanishing Points. Draw ...more

In this article, I will be showing you how to make a crude form of aspirin from the bark of a willow tree. It is a great remedy for headaches, hangovers, and other minor pain. The use of the willow tree as a mild pain reliever goes back to the Native Americans, who used it in ...more

I don't know how many of you had this experience in your youth, but when I was a kid, I used to actively think about what would happen if I suddenly woke up in a fantasy land, or were to pass through a portal into another space and time. I knew it wouldn't really happen, but w ...more

This two-part series (second part here) will teach you literally everything you need to know in order to make pretty much anything out of leather. There are some advanced techniques that I don't cover in this guide, but these are the basics. With these skills, you'll be able ...more

Thrift stores! As a Steampunk, they can be your best friend, but it's easy to make a tragic mistake. This hands-on guide will help you navigate the murky waters of successful thrifting in order to find the hidden gems that will make your Steampunk outfit complete! Thrift Stor ...more

While I am a writer with a degree in Creative Writing, I haven't published any Steampunk fiction. However, as a panelist and track director, I've been on panels with many well-known Steampunk writers and have gleaned insight from the things they've said. I've compiled some of ...more

OSAGYEFO DR. KWAME NKRUMAH (1909-72) Founder and Father of the Nation Osagyefo Dr. Kwame Nkrumah, the first Prime Minister and President of Ghana, stands out not only among the Big Six but also among the greatest statesmen of history. It was he who canalized the discontent of ...more

Customization has always been the main draw of Android for me, but Apple has an impressive feature on iOS 16 that lets iPhone users create customized emoji wallpapers for their home and lock screens. While Android doesn't have something like that built-in by default, it's easy ...more

Amazon really wants to make itself at home in your home. Like, everywhere in your home, from your doorstep to your kitchen, your kids' rooms, and everywhere in between. During a virtual press event on Tuesday, the company unveiled a veritable cornucopia of new smart home devi ...more

As protests surge in the wake of George Floyd's murder by a Minneapolis police officer, powerful photographs and videos from the demonstrations have gripped the world, putting our nation's very real and very justifiable widespread civil unrest out into the digital world. Unfor ...more

Cases and stickers are always great, but they aren't the only way to customize an iPhone. The software on your device is full of customization options, from a better-looking home screen and cooler lock screen wallpapers to app icon changes and a system-wide dark mode. There's ...more

Smartphone technology has become as ubiquitous as automobiles. In Austin, Texas, a city that is widely known as the "Live Music Capital of the World," smartphones have been embraced by the music community not just as a way to document and promote, but to create music. A rock ...more

Whether we like it or not, our personal information and smartphones are tied together at the hip. The former needs the latter to deliver a personalized experience that matches our individual needs. This personal data, however, makes your phone a prime target for thieves of all ...more

Apple CEO Tim Cook has said that augmented reality (or, AR for short) will "change everything." But what, exactly, is augmented reality? Generally, augmented reality refers to the process of presenting virtual objects and imagery — usually through a wearable lens or external ...more

Streaming movies and TV shows on phones is more popular today than ever, but what about when you're on a plane, have a limited data plan, or will be in a no-service area? You'll want to download your movies and TV shows instead. While Netflix is excellent, you can't rent or do ...more

The iPhone XR offers a discounted experience compared to the expensive iPhone XS and XS Max. However, that lower price tag comes with some caveats, such as "Haptic Touch" in lieu of 3D Touch. If you think these two "touch" features are the same, think again. Before you get an ...more

Smartphones are like high tech buckets that collect our personal information through constant use. This has some obvious benefits, like getting a more personalized experience with our devices. On the other hand, this data is a tempting target for bad actors looking to make a b ...more

After testing a series of Android 8.0 builds, Essential hit the reset button and jumped to Android 8.1 Oreo. The beta program didn't last long, as Essential has now released the official 8.1 update to the masses. The features from the 8.0 betas are all still there, plus a few ...more

While autonomous vehicles are almost assuredly the future of personal transportation, we are likely many years from seeing self-driving cars become as ubiquitous as manually-driven ones, as the auto industry has a myriad of government regulations and other constraints to conte ...more

Our smartphones are full of personally-identifiable information. So much of what we do with these devices is tracked and recorded to make our experience more streamlined and personalized. For many users, that's a fair trade — but for privacy-minded folks, it's a raw deal. And ...more

All fields of study have their own language. For people interested in learning about microbes, the language can sometimes be downright difficult — but it doesn't need to be. From antibiotics to xerophiles, we have you covered in an easy-to-understand glossary. Terms are liste ...more

Now that smartphones have ensured that we're connected to the internet 24/7, online privacy has become more important than ever. With data-mining apps hoping to sell your information for targeted ads, and government agencies only one subpoena away from knowing every detail of ...more

Windows 10 is officially here, and frankly, there's a ton of new features in Microsoft's latest operating system. From the return of the Start menu to the new Edge browser, Windows 10 can take some getting used to. Luckily, we've done a lot of the leg work for you, and what f ...more

Straight out of the box, the Nexus 5 is an awesome device, but even it can be faster with better battery life. Luckily, one of the things that makes it so awesome is that there are tons of developers creating mods for it, since it runs stock Android by default. When it comes t ...more

An invaluable button on your iPhone can do hundreds, even thousands, of amazing things, but most iPhone users don't even know it exists. You can't push it. You can't click it. You can't press it. But it's the largest button on your iPhone, more powerful than the versatile Side ...more