Measure Speed

Getting sunburned sucks, and according to the Environmental Working Group's 2012 survey of over 800 sunscreen brands, 75% of them contained potentially harmful ingredients linked to hormone disruption and even cell damage that may lead you to skin cancer. Yikes. Other than be ...more

Imagine two stakes in your backyard. Now draw an east-west, north-south coordinate system on your lawn. Measure the east-west distance between the stakes and also the north-south distance. Take the square root of the sum of the squares of the two measurements and, voilà, you e ...more

A tachometer, or RPM counter, is a device that measures the speed of something that's rotating. In a car with a manual transmission, the tachometer can be helpful in determining when to release the clutch and how much gas to give when you're taking off. This DIY Arduino Tachom ...more

There's a lot of misinformation about VPN services, and it stems from the fact that not all of them are created equal. Some focus on privacy, others on security, and a few VPNs are seemingly even purpose-built for the polar opposite: data collection. We made this guide to help ...more

General Motors (GM) seems to have gone to great lengths to avoid lawsuits as it launches its first hands-off driving system in its soon-to-be-launched Cadillac CT6. As GM makes the Cadillac CT6 available to a limited number of reviewers ahead of its launch this fall, early te ...more

While all of my previous Have You Seen This? posts have all focused on individual HoloLens apps in the Windows Store, this time I'll be sharing a couple at once. These holographic applications are really simple in scope, so there is not a lot to say about them, yet they are in ...more

The new iPhone 12, 12 mini, 12 Pro, and 12 Pro Max may seem like minor updates to the iPhone 11 lineup, but there are quite a few features that make them worth the upgrade. Apple has done a good job of highlighting all of those features, but some didn't get all of the love the ...more

Having a dropped call can be incredibly frustrating, especially when you look down and see that your iPhone has full reception. While there's any number of issues that can cause this, one common and often overlooked issue is your iPhone failing to switch cell towers as appropr ...more

Mozilla's Firefox has always been a highly praised internet browser. Since it's open-source, users know what they're getting without any secrecy. It's got plenty of features that are unmatched by any of its competitors on mobile. However, speed and performance have always been ...more

The launch of the Audi A8 marks the world's first Level 3 car on offer in retail channels, except there is one catch: it can only take full control of driving at speeds of 37.3 mph or less. Audi would have certainly set the A8's self-drive to work at much higher speeds if it ...more

The technology driving the automated vehicle revolution relies on the car's ability to see and understand the world around it. Sensors act as the eyes and ears of the vehicle and collect the necessary information. There are several different ways in which different companies ...more

Boozing it up at work might have been okay back in the days of Mad Men, but today, employers prefer that their workers stay sober. What you and your bosses probably don't know is that a little drinking on the job can actually increase your creative capacity and problem-solving ...more

If you're in the market for a new smartphone and want nothing but the best of the best, now's the time to act. Some of the greatest phones money can buy are being released as we speak, while others are still in their prime and will continue to be for most of 2024. Whether you ...more

The time to wait for an absolutely killer phone from Samsung is over. They've released a giant of a phone known as the S20 Ultra, and at least on paper, it's a grand slam. But only a few months ago, Apple released its first "Pro" iPhone, and it was giant in its own right. So w ...more

Although lots of the bigger hotel chains are lessening the restrictions they put on their room TVs, some smaller ones are still taking measures to prevent you from plugging in computers or streaming devices into an HDMI port. However, there are a few steps you can take to bypa ...more

You can make a pretty strong case for pancakes being the ultimate breakfast food. They taste like a treat for a special occasion, yet they're not bad for you (presuming you don't share my whipped cream and maple syrup habits). They can be customized and accessorized, and they ...more

Merely fidgeting and shivering can burn calories, but now you can add trembling in fear to the list too. Just pop in a good horror movie and turn down the lights to burn off up to 200 calories. What would you rather do? Walk for over 30 minutes or watch a 90-minute scarefest? ...more

There's no shortage of reasons to love the One, yet a feature curiously omitted from the device, much to the chagrin of power users, is a multitasking button. Most Android devices, in addition to 'home' and 'back' keys, have a 'multitasking' key which opens a task switcher an ...more

A blue hedgehog runs at high-speed through fantasy environments collecting rings. Sounds a bit loony, but I’m of course taking about the Sonic adventure series that was made popular on the Sega Genesis. The days of cartridge 16-bit gaming has long been eclipsed, but nostalgia ...more

Particles, such as electrons, have a property called spin which can be measured at any angle, but when measured always results in one of two answers—up or down. If a particle's spin has been measured at an angle of zero degrees and results in a spin up answer, then if its spi ...more

We go to such great lengths to secure our smartphones. We put passwords on our lock screens, encrypt our data, and install anti-theft programs, but it's never enough—someone, somewhere, will find a way around any protective measure you use, no matter how sophisticated. Unfort ...more

We all know Android updates have been iffy in the past. But Google has implemented several measures recently that have sped up the process substantially, and OnePlus is taking advantage of these. Still, a staged rollout update might keep you waiting for a few days or longer. S ...more

Apple has implemented a new sensor on the rear camera of its fourth-generation iPad Pro, and it's pretty exciting. It's called the LiDAR Scanner, a scanning "light-detection and ranging" sensor, and you may very well be acquainted with it if you follow any driverless car news. ...more

Congratulations, you've made it deep into the middle of flu season! If you're reading this, you're either a very smart preemptive sick day prepper, or already in the throes of fighting off a cold or flu situation. Either way, welcome, keep sipping on that hot toddy, we've got ...more

Correctly identifying the underlying technologies that run on a website gives pentesters a considerable advantage when preparing an attack. Whether you're testing out the defenses of a large corporation or playing the latest CTF, figuring out what technologies a site uses is a ...more

Augmented reality plays a key role in the evolution of adjacent technologies, such as 5G connectivity and brain-control interfaces (BCI), and the business news of the week serves up proof points for both examples. On the 5G front, Verizon's acquisition of Jaunt XR adds anothe ...more

Who's ready to let future Facebook augmented reality smartglasses read their brain? Well, ready or not, the tech giant is making progress in the area of brain control interfaces (BCI) by funding research. This week, Facebook shared some of the progress its Facebook Reality La ...more

Traditional subdomain enumeration techniques create a lot of noise on the target server and may alert intrusion detection systems to an attacker's intentions. For a stealthier approach, there's a tool with the capability of finding hundreds of subdomains related to the target ...more

IFTTT is an application that allows you to automate certain tasks on your iPhone or Android. It can communicate with a myriad of apps and services on your phone by creating applets that perform actions automatically — actions you'd normally have to do manually. Finding those a ...more

While ARKit and ARCore are poised to bring AR experiences to millions of mobile devices, one company is poised to anchor those experiences anywhere in the world with just a set of geographic coordinates. The geospatial augmented reality platform Aireal enables developers to p ...more

The iPhone X has a new unlocking mechanism called Face ID, which replaces the old Touch ID system since the phone no longer has a fingerprint sensor. The way it works is simple — you just look at the phone, it recognizes your face, then the system unlocks — so Apple deserves t ...more

This fall, DC Comics fans will be treated to an augmented reality experience promoting the Justice League movie. Likewise, history buffs will be able to enjoy their own augmented reality content by way of the Terra Cotta Warriors exhibit at The Franklin Institute in Philadelph ...more

Nvidia has emerged as the indisputable leader in chips for Level 3 and even more advanced driverless applications, catching some of the world's largest semiconductor makers and automotive suppliers by surprise. After the car industry figured out that AI-piloted vehicles were ...more

With a death rate of one in five, sepsis is a fast-moving medical nightmare. New testing methods might improve your odds of survival if this infection ever hits you. While we usually think of a deadly medical condition as the result of infection with a bacteria or virus, seps ...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

Pokémon GO, the global augmented reality game that's brought fans out of their homes to catch Pokémon across the planet, has brought about plenty of real-world positives. Unfortunately, when players get power hungry and start taking game hacks too far, we all get a little scre ...more

We like our Egg McMuffins around here, albeit homemade with our preferred ingredients: whole wheat (or homemade sourdough) English muffins, a slice of thick Tillamook cheddar cheese, a meat, perhaps, like Canadian bacon, and finally—that perfectly-fried, perfectly-shaped egg. ...more

If your company has already released some popular and addictive game and you're thinking about creation a sequel, this article is just what you need. We gathered the main tips and advices that will be useful for the building a strategy and a sequel itself. Check out the follow ...more

I hate wasting money. To be fair: I doubt there are many people out there who relish the idea, but I especially hate it. And I also dislike spending in excess of what I need. This happens all too often, I feel, when it comes to recipes that involve using sausage. Don't Miss: ...more

With over 10,000 possible combinations, a four-digit passcode may seem secure, but it's fairly easy for someone to crack your code—no matter how clever you think it is. Luckily, there are many other options for securing your iPhone's lock screen—especially if your running iOS ...more

Not all batteries are created equal, but one thing's for sure—they all lose capacity over time. Thankfully, the advanced lithium-ion batteries in your MacBook and iPhone are meant to last for several years before they begin to lose their overall charge capacity. Of course, th ...more

Why did I write this when they're tons of scanning tools available. Let's start with a real world situation. I sometimes visit clients sites that I need to obtain a usable IP address for a server or whatever. Believe it or not, they are networks that are configured with class ...more

When it comes to antivirus software, you don't want some fly-by-night developer having access to the sensitive data that these apps can scan. Luckily, most of the longest-tenured antivirus companies from the realm of desktop computers offer complete security suites for Android ...more

We know Android 9.0 will have the formal designation of Pie, following Google's age-old tradition of naming their OS after items you'd normally find on a dessert menu. And thanks to a slew of new features that centers around your overall security, P could also stand for Privac ...more

It looks like the dust is finally starting to settle on Google's POLED PR nightmare. The Pixel 2 XL — one of the most hotly-anticipated phones of the year — has been plagued by screen issues and worries. While it is certainly not without its faults, Google has created several ...more

Ransomware is software that encrypts a victim's entire hard drive, blocking access to their files unless they pay a ransom to the attacker to get the decryption key. In this tutorial, you'll learn how easy it is to use the USB Rubber Ducky, which is disguised as an ordinary fl ...more

Walsh, a new community under construction on 7,200 acres of former ranch land near Fort Worth, Texas, will one day contain 15,000 homes. To sell prospective home buyers on the development before it is fully built, Republic Property Group is leaning on technology. A high-spee ...more

If you ask Apple Support if the 18-watt power adapter that came with the iPhone 11 Pro, iPhone 11 Pro Max, and four different iPad models will work with the MagSafe Charger and your new iPhone 12 or 12 Pro, the answer is "yes." But that's not the whole story. People have been ...more

For all the benefits 5G brings to cellular data, it isn't without weaknesses, the biggest being privacy. Yes, the latest standard comes with breakneck downloads speeds up to 4.3 Gbps, but at what cost? Like with all things on the internet, 5G devices open opportunities for bot ...more

The hugely successful S10 series of flagships may be a tough act to follow, but Samsung has proven that it's up to the task with the Galaxy Note 10. The latest phablet bearing the Note name is the first of its line to come with an even larger variant, and boasts an eye-pleasin ...more

One of the primary marketing tactics used by Magic Leap in promoting the Magic Leap One was selling early adopters on the "magic" contained within the device. On Thursday, some of that magic was uncovered as the Magic Leap One was completely disassembled by repair engineers, r ...more

As we enter the second half of 2018, rumors for the second season of flagships have started to emerge. On the Android side, this means the latest iterations of the Google Pixel, Galaxy Note, LG V series, and Huawei Mate. Thanks to FunkyHuawei and XDA, we now have some solid ru ...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

In the case of rotting food, microbes are not our friends. Now, scientists have developed a new food wrap coated with tiny clay tubes packed with an antibacterial essential oil that can extend the shelf life of perishable food, so we can waste less and eat more. "While compan ...more

Are you looking for a little microbe magic? Think composting. Composting is a great way to reuse food and plant waste that you would otherwise throw into the trash, which would just end up in a landfill somewhere. During the composting cycle, microbes reduce this organic wast ...more

The OnePlus 5 just made its official debut, so we now have all of the juicy details. From the announcement, this device definitely sounds like it's going to be another flagship killer, following in the footsteps of its predecessors. Right off the bat, the OnePlus 5 challenges ...more

Bitcoin continues to make chaotic waves in the finance industry, with one bitcoin currently worth about $1,250 as of this writing. What's great about bitcoin is that you don't need to shell out rent money to get in the game, because bitcoins can be bought in increments—basical ...more

Of course, if it were a perfect form of currency, it would have become the standard by now. But it hasn't. Wanna know why? The story begins with the advent of agriculture, when humans had settled down under groups as units called villages, over 10,000 years ago. That's when t ...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

The older I get, the more my Friday nights involve watching Netflix at home with a bottle of Maker's Mark and a box of Oreos. Netflix is a big part of my life, and I'm not alone. YouTube and Netflix make up over 50% of all activity on the Internet, so it might be worth your ti ...more