What Are the Tools Used Measure Blood Pressure

You might think you need to buy a thousand dollar phone to get a great experience while streaming movies and TV shows from services like Netflix, Hulu, and YouTube, but that's just not true anymore. While phone prices keep rising and the midrange segment now ranges from $300–$ ...more

In this jam-packed October, the Huawei Mate 20 Pro has flown under the radar in the US. Due to Huawei's lack of presence in the States, many are unfamiliar with the second largest OEM in the world. Huawei has continuously put out amazing mobile devices, and this year they rele ...more

One could argue that, at least for the moment, software development is more important to the augmented reality experience than hardware. Since a viable augmented reality headset has yet to emerge for the broader, mainstream consumer market, currently, the same devices that mak ...more

The next big iOS version for iPad, iPhone, and iPod touch was revealed by Apple at WWDC 2018 and dropped for everyone on Sept. 17, 2018, less than a week after Apple revealed the new iPhone lineup. We've rounded up all the big picture items and secret features and changes we c ...more

Apple's successor to the iPhone X is a beautifully made smartphone with much of the same characteristics, including a 5.8-inch OLED screen, two storage choices, and Face ID. But many features set the iPhone XS apart from its predecessor, as well as the other 2018 lineup of iPh ...more

Three new iPhones means you have to make a choice: Do you go with the smaller iPhone XS, the larger iPhone XS Max, or the cheaper iPhone XR? There's lots to like about each model, but if you want to make an informed decision, it's time to learn what each has to offer. Here's w ...more

Performance and stability improvements, as well as new features, are just some reasons to install iOS 12, but new changes mean new battery health challenges. It can be difficult to boost battery life while taking advantage of everything this update has to offer. Luckily, there ...more

With all the web applications out on the internet today, and especially the ones built and configured by novices, it's easy to find vulnerabilities. Some are more perilous than others, but the consequences of even the slightest breach can be tremendous in the hands of a skille ...more

During its presentation at Unite Berlin, Magic Leap gave attendees a crash course in developing experiences for Magic Leap One (ML1), we found out quite a bit more about how the device works and what we can expect to experience with the device. Alessia Laidacker, interaction ...more

As you're surely aware, your phone can be used against you. Thanks to our cameras and microphones, a clever hacker can obtain access to your device and invade your privacy. But spying isn't limited to just these two sensors — gyroscopes, proximity sensors, QR codes, and even a ...more

All the Android fans out there undoubtedly remember the squeeze gestures introduced with the HTC U11. Google continued the trend by bringing the gestures to the Pixel 2 and Pixel 2 XL. Thanks to a brand new app, you can now enable similar squeeze actions on your Galaxy S9 or S ...more

Researchers have developed a new method that harnesses the power of augmented reality to detect a patient's heart rate using a Microsoft HoloLens and computer vision. Developed by Dr. Christophe Hurter, a professor at French Civil Aviation University, and Microsoft researcher ...more

Even though most phones don't have Oreo yet, Google has released Android 9.0 Pie. It's available on Google's own Pixel devices, and updates should soon be available to partnered devices from Essential, Nokia, Oppo, Sony, Vivo, and Xiaomi. We're already digging into it to highl ...more

2017 was a down year for HTC. First, the U11 and U Ultra were widely criticized. Later, Google purchased a large chunk of HTC's manufacturing division, leaving the Taiwanese company running with a skeleton crew after losing 2,000 key employees. But that's not stopping HTC — th ...more

Before, the only way to really tell how your iPhone's lithium-ion battery was performing was to use tools such as Geekbench and Battery Life, but now Apple has included some quick battery health checks right into iOS 11. This feature is only available starting in iOS 11.3, so ...more

While there aren't as many ways to customize your iPhone like there is on Android, there are still a lot of apps out there that can help streamline and enhance your experience beyond Apple's own default options — and we've hand-picked over 100 essentials. No matter if you've ...more

The augmented reality industry made great strides in 2017, but its apex is not even in sight. In terms of software, augmented reality is approaching meaningful mainstream awareness, thanks mostly to Apple and ARKit. Meanwhile, on the hardware side, AR is very much in its infa ...more

The public leaks of NSA tools and information have led to the release of previously secret zero-day exploits such as EternalBlue, which was used in the notorious WannaCry ransomware attack. Despite multiple patches being released, many users have failed to update their systems ...more

So, your grandmother finally wants to ditch her flip phone for a shiny new smartphone? Congratulations. But helping her get used to her new device, even when it's an iPhone, is no small task. Grandma mastered checking her email in late-2012 and just recently learned there's a ...more

Since its debut, retro thriller Stranger Things and its characters have become ingrained in our popular culture — especially the telekinetic Eleven. For cosplayers, it didn't take long before they grabbed their boxes of frozen Eggo waffles, blonde wigs (or bald caps), and pink ...more

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 cer ...more

On June 11, 2016, an Arizona woman died from what appeared to be several infections, including pneumonia. She likely caught at least one of these from her dog. The Centers for Disease Control and Prevention (CDC) were involved in the investigation into events leading up to he ...more

Regarding foodborne pathogens, eating fish is not as hazardous as it was a few years ago — but if fins are on the menu, it's good to have a heads-up about what's good and what's bad these days. Fish are typically considered a healthy, recommended food — except when they aren' ...more

A new study shows the Zika virus is present in saliva — but it may not be enough to make you sick. The Centers for Disease Control and Prevention notes there is "no evidence that Zika can be transmitted through saliva during deep kissing." Given the results of research publis ...more

The number of households in the US that go hungry because they lack money for food hit a high of almost 15% in 2011. While that number continues to decline, nearly 13% of American households still go hungry. Malnutrition — either from not eating enough or not getting enough n ...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

People who have heart disease get shingles more often than others, and the reason has eluded scientists since they first discovered the link. A new study has found a connection, and it lies in a defective white cell with a sweet tooth. Shingles is a reactivation of the same v ...more

Bone loss and belly fat may no longer be certain fates of menopause, thanks to new research from an international team of scientists. Researcher Mone Zaidi from Icahn School of Medicine at Mount Sina and colleagues describe the discovery of an antibody that reduced fat and in ...more

Streptococcus and staphylococcus bacteria produce toxins that can cause toxic shock syndrome. Originally associated with infections related to tampon use, today more than half of the infections are due to other types of infection. Skin infections, burns, and surgical sites ca ...more

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. ...more

Stakeholders in the driverless industry are anxiously awaiting changes the US Department of Transportation (DOT) is making to self-driving vehicle guidelines. Under the existing guidelines drafted by the DOT during the President Obama era, a 15-point "safety assessment" detai ...more

The Centers for Disease Control and Prevention estimated that there were 212 million cases of malaria across the world in 2015, and 429,000 of those people died — mostly children living in Africa. Preventing and treating those infections has been a challenging world priority. ...more

As researchers from Yale searched our environment for compounds to aid in the battle against drug-resistant bacteria, they got an unlikely assist from ticks. Ticks are best known for being the nasty bloodsuckers that spread dangerous infections like Lyme disease, the Powassan ...more

Lyme is a growing threat as we move into warmer weather in the US. Researchers have said this year could be one of the worst for this tick-borne disease, as a skyrocketing mouse population and warmer temperatures increase the risk. Knowing where this risk is highest is going ...more

Fighting fire with fire, scientists are harnessing the adaptability of helpful microbes to challenge the adaptability of deadly microbes. What are we talking about? Hunting with phages — viruses that attack and kill bacteria. Bacteriophages are small, skeletal viruses that at ...more

Antibiotics used to prevent diseases in livestock are creating a world of hurt for humans and the soil we depend on for food. Bacterial resistance to antibiotics is a global health issue. The overuse, underuse, and poor use of these life-saving drugs is rapidly removing them a ...more

The culprit probably wasn't what doctors were expecting when a 57-year-old man in Hong Kong came to the hospital. The patient was admitted to the intensive care unit in critical condition. A clue to the cause of the infection would lie in the man's profession—he was a butcher. ...more

Arsenic occurs naturally in the environment, but it is also one of the most commonly found heavy metals in wastewater, deposited there by inappropriate disposal and arsenical pesticides, for example. Whether by nature or contamination, an estimated 200 million people worldwid ...more

Hospitals are places we go to get well, and we don't expect to get sick or sicker there. But a study from researchers at the Cleveland Clinic, Case Western Reserve University School of Medicine, and Cleveland VA Medical Center in Ohio found that hospital floors in patient room ...more

Six people have died from fungal infections in Pittsburgh hospitals since 2014—that fact is indisputable. The rest of the situation is much vaguer. A lawsuit has been filed against the hospitals on behalf of some of the deceased patients, alleging that moldy hospital linens ar ...more

Prion diseases are a group of infectious brain diseases that causes extensive tissue damage, resulting in sponge-like spaces in brain tissue. Prions include Creutzfeldt-Jakob disease in humans, bovine spongiform encephalopathy (often called mad cow disease), and chronic wastin ...more

What's in a sneeze? Quite a lot—dirt, mucus, and infectious germs—it seems. And sneezing the right way can reduce the germs you share with neighbors. It's just a sneeze right? Everybody sneezes. So if you share a few germs when you are sick (or not sick), it's not such a terr ...more

As fun as it is to see Fido's face light up when you feed him table scraps, American dogs are getting fat. The good news is that research is homing in on nutritional strategies to boost canine capabilities to maintain a healthy weight. In 2015, in a survey of 1,224 cats and d ...more

Sleep lets our body processes rest and restores us for the next day, so a bad night's sleep can ruin the following twenty-four hours and even make us feel sick. Now, new research published in the journal Sleep cements the idea that loss of sleep actually leaves us vulnerable t ...more

The year was 1947. Scientists had isolated a virus from a pyrexial rhesus monkey in Uganda and named it after the forest where the monkey lived — Zika. Then, a little more than a year ago, in the fall of 2015, health officials in Brazil reported a sharp increase in the number ...more

One of the big hurdles when equipping vehicles with sensors for autonomous driving is the cost. For example, the Light Detection and Ranging (LiDAR) sensors that power many versions of self-driving car technology are pricey, currently ranging from around several thousand dolla ...more

Damn right, you don't just eat 'em. When you're done with your next Pringles can, you can turn it into a kaleidoscope, a pinhole camera, and even a solar hot dog cooker. But Instructables user TheSpodShed may have just created the most awesome way to upcycle empty Pringles ca ...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

Even those of us most comfortable in the kitchen can be daunted by the idea of cooking for a whole houseful of people. Whether you have a large, well-equipped kitchen or a small one with just the essentials, it can prove to be quite a task to prepare food for a dozen or so peo ...more

Tonic water, seltzer water, club soda, and mineral water: these 4 types of "bubbly water" are often, erroneously, used interchangeably. But the truth is that each possesses unique qualities and uses that set them apart from each other. Most experts can tell types of bubbly wat ...more

3D Touch on the iPhone 6S and 6S Plus is a pretty cool feature, and will only get better as more developers begin to roll its functionality into their apps. Almost as soon as it was announced, the idea to create an app that used 3D Touch to weigh objects was in the works. Unf ...more

Salad spinners are one of the more divisive kitchen tools out there. On one hand, they're incredibly easy, efficient, and useful. On the other hand, they're a single-use tool that takes up a lot of space. As much as I appreciate the usefulness of salad spinners, I simply don' ...more

As many of you know, processor's clock frequency improvement got stuck in about 2003, causing the origin of multicore CPU (and other technologies). In this article I'll introduce you on how to run code simultaneously in various processors (I suppose that all of you have a mult ...more

Since I first announced the new Null Byte recognition for excellence a few weeks ago, several of you have written me asking, "How can I study for this certification exam, and what material will be covered on the exam?" Now I have an answer for you. The White Hat Hacker Associa ...more

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. Cons ...more

Welcome back, my novice hackers! This new series on Bluetooth hacking was inspired by a recent episode of Mr. Robot (my favorite TV show). In episode 6, Eliot hacked the bluetooth keyboard of the police office in order to hack the prison and release his nemesis, Vera. This is ...more

If you're one who enjoys a good DIY project, or if you're just tired of paying exorbitant labor fees to have your vehicle serviced every 5,000 miles, changing your own oil can be a rewarding endeavor. Even though cars and trucks are becoming increasingly over-engineered these ...more

Once your furniture is finally moved in, settled upon a spot, and used for comfort or leisure, chances are it won't move very often. We tend to leave—and use—our furniture in the same spot for years, which can leave signs of great wear beneath, deeply indenting our carpeted fl ...more

One of the great joys of cooking is taking the most basic of foods and preparing them in new and exciting ways. About two years ago, my wife opened my eyes to a delicious staple of Indian and Moroccan cuisine that is made in a very elementary way, the preserved lemon. The lem ...more

No one ever wants to experience pain, whether it's as small as a stubbed toe or as great as recovering from surgery. Yet so much of our lives causes pain, lasting or brief in its form. With a few mental tricks and unusual home remedies, you can relieve some of the most common ...more