How Does a Compass Work

Your days as an ordinary Muggle are over — as long as you have an iPhone. With just a word or two, you can use your iPhone and newfound Muggle-born powers to cast spells or utilize charms just like Harry Potter and team. Only your "wand" is from Apple, not Ollivanders in Diago ...more

Using only a circle and straight lines, it's possible to create various aesthetic curves that combine both art and mathematics. The geometry behind the concentric circle, ellipse, and cardioid dates back centuries and is easily found in the world around us. From an archery tar ...more

Clash of Clans is one of the most successful games ever to come out for Android and iOS. It has been downloaded over 50 million times from Google Play alone, and shows no signs of decline. Part of its success is the constant need for players to sign in to avoid being raided a ...more

Many midrange phones are being manufactured without a gyroscope sensor—the Moto X Play, third-generation Moto G, and several of Samsung's Galaxy Grand models, among others. It's not exactly an essential smartphone sensor, and leaving this out keeps the phone's price point down ...more

Other than sticking your crayon drawings onto your refrigerator door, magnets have a variety of unexpected and sometimes surprisingly practical uses, ranging from keeping your chip bags sealed to creating weird patterns on your nail beds using magnetic nail polish. The strong ...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

A single paper clip can go a long way. Having just one of these ubiquitous office supplies can make you a smartphone mount, replace your broken zipper tab, scratch your lottery ticket, and eject the CD from your stuck DVD drive. Multiple paper clips chained together can make ...more

Before I really get into this article, it's important to note that you do not need a Steampunk persona (or "steamsona") in order to be a Steampunk, or wear Steampunk clothes. Some people like to pretend to be a different person when dressed up in Steampunk clothing, but that i ...more

Back in the Super Nintendo days, playing one RPG after the other, memorizing maps and mazes became second nature if you didn't want to look at the mini map or get lost often. I would make it a point to memorize corners and the overall structure of the dungeon or location, so t ...more

The integration of technology into automobiles is becoming more and more widespread each year. Tesla's Model S features a 17" display in the middle of the dash with navigation, music control, and even an Internet browser. Mercedes is working on incorporating Google Glass into ...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

I know it seems a little redundant to post this when I've already posted a video, but it is kind of hard to get more than a vague idea from the video alone. I hope this sheds a little more light on the subject. I'm sure it also seems like I'm beating this idea to death, but th ...more

When you have to take four different freeways to go twelve miles, Google Maps becomes a very close and dear friend—especially in Los Angeles. Without my trusty Samsung Galaxy S3, I seriously don't know if I could make it back home half of the time. Of course, you'd probably ge ...more

|Choose Your View: Quick Bullet Points | Detailed Descriptions Android's newest major update is a special one — it's the tenth full version of the world's most commonly used operating system. The latest release, dubbed simply Android 10 (codename Android Q), was first showcas ...more

Apple has tools built into iOS to help parents monitor the iPhone habits of their children. However, those same tools can be used by everyday iPhone owners to both hide apps they don't care about, as well as restrict features they don't need or that infringe on privacy. Whethe ...more

There are many apps and features on your iPhone that you may never use, and therefore don't need. A great illustration of this is the Apple Watch app. You might have no interest in ever getting an expensive smartwatch, yet you're stuck with the Apple Watch app on your home scr ...more

Apps can collect a lot of data. Even if they don't have permission to access your GPS or camera, they can still read other sensors and learn a lot more than you'd think. Your gyroscope could be used as a keylogger. The light sensor could read your visited links. But if you're ...more

Rooting. As an Android user, I'm sure you've heard the word once or twice. According to Kaspersky, 7.6% of all Android users root — but for the 92.4% who don't, we wanted to talk to you. Rooting allows you to remove barriers and open Android to a level of unprecedented contro ...more

Whether you're white hat, black hat, or some shade in-between, navigating through a network is a core part of hacking. To do that, we need to be able to explore a network to discover the addresses of gateways, interfaces, and other attached devices. When ifconfig just isn't en ...more

So you finally decided to make the switch from iOS to Android, huh? Well first off: welcome to the world of tomorrow. And secondly: good call, mate. In all seriousness, switching between mobile ecosystems can be quite the hassle. Even after you've grown accustomed to the new ...more

Thanks to Apple's ARKit 2.0 augmented reality framework in iOS 12, we now have a "Measure" app built right into our iPhones that can measure real-world objects. No more physical tape measure or ruler. No more guessing. Just whip out your iPhone, open the app, put your camera, ...more

The original iPhone SE was, for some, the perfect iPhone. It brought back the popular one-handed form factor of the iPhone 5 but packed in the internals of the then-new iPhone 6S. Now, the second-generation iPhone SE is here for 2020, but can it live up to what made the first- ...more

One of the least important but most noticeable changes in any iOS update is the look of home screen icons. In the new iOS 11, there aren't any drastic icon differences compared to iOS 10, but there's definitely a few design modifications for some of the main stock apps, such a ...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

One of Android's biggest strengths is its flexibility. There's usually more than one way to perform the same task, which makes it easy to find an alternate method that works better for you. Android also has some hidden features that newer users might not be aware of, so we mad ...more

Apple has four iPhone models for the remaining months of 2020, but the most impressive ones are the iPhone 12 Pro and iPhone 12 Pro Max. While the iPhone 12 and iPhone 12 mini are great smartphones, the "Pro" models offer more advanced features, especially for photographers an ...more

In the case of Apple Watch v. Fitbit, the winner comes down to the judge at hand. Apple currently offers two smartwatches — the Series 5 and the Series 3 — while Fitbit offers three models — the Fitbit Versa 2, Fitbit Ionic, and Fitbit Versa Lite. Whatever your assumptions abo ...more

Every iPhone since the 5S has come equipped with a microchip called a motion coprocessor, which collects data from integrated accelerometers, gyroscopes and compasses, and can then transfer that information to fitness apps that track physical activity. Essentially, the chip kn ...more

Last week, I showed you a peek at the not-yet-released Galaxy S5 Active, the more rugged version of Samsung's current flagship. The man behind those leaks, TK Tech News, has now brought another goodie from the device, and it's one we can have on the Galaxy Note 3. Dubbed Acti ...more

If you had a phone in 2004, there's a pretty good chance it was a Motorola RAZR. The iconic phone is the tenth highest-selling of all time, and it marked the height of the flip phone era. Now that the technology has caught up, Lenovo (Motorola's parent company) is bringing it ...more

The OnePlus 7 Pro is definitely a beast on paper. With a specs page that ticks virtually every box and a price point that undercuts the competition by hundreds of dollars, it's hard to overlook this phone. But before you get too excited, know that OnePlus has repeatedly shown ...more

When you don't have a steady cellular signal or immediate Wi-Fi access but need to communicate with others around you, you can set up an off-the-grid voice communications network using a Raspberry Pi and an Android app. There are apps such as Bridgefy that will create a mesh ...more

I've been an Android user almost as long as the operating system has existed, so when I received my first iPhone in April, I felt like I was in a foreign land. Sure, it runs most of the apps I'm used to, and the phone itself feels about the same in my hand as any similarly-siz ...more

Christian Cantrell, Adobe's Air Product Manager and Evangelist, has released a video to demo websites that take advantage of the motion sensors in a mobile phone, tablet, or laptop via JavaScript. Now, let's take a look through the code and break down the core pieces that you' ...more

Last year, your iPhone's Weather app received some great features, but things are even better now with the latest iOS 17 version. Apple's Weather app has been around since the very beginning. In 2007, it provided little information, mainly consisting of the seven-day forecast ...more

Last year, many were caught off guard when Google released a midrange Pixel device. It was quickly crowned the best value-buy phone on the market, as it brought most of the camera tech people loved in the flagship Pixel for almost half the cost. Google's 2020 entry in this ser ...more

After poor sales of the Pixel 3 and Pixel 3 XL, Google needs to reinvigorate its Pixel lineup, devices it's been pushing heavily over the last couple years. On May 7, Google had the eyes and ears of the technology industry at its Google I/O keynote, making it the perfect time ...more

I've been using the Photo Sphere Camera from Google on all of my Android devices ever since it came out on Jelly Bean 4.2, which lets me create riveting 360° panoramic images. Apple has its own built-in panoramic mode, but it only takes 240° images, and I've never found any s ...more

The iPhone XR has touched down alongside the XS and XS Max, and it utilizes tried and tested materials found on the iPhone 8, while being molded in the same vein as the iPhone X. The budget-friendlier flagship comes with its own set of design elements to set it apart from its ...more

Do you like Samsung's TouchWiz and the iPhone's user interface, but wish you could bring the best of both worlds together onto your device? You can! MIUI (pronounced me-you-eye) is a heavily modded custom ROM that brings a different UI experience never before seen on stock And ...more

Not much about 2020 is what you'd call normal, but if one thing remains the same, it's that Apple will still release new iPhone models. This year, the company is offering four new options: two "Pro" models and two "consumer" devices. If you want to know more about the latter t ...more

The worst can always happen. Even if you think you're absolutely prepared, you can somehow find yourself stranded in the middle of nowhere by yourself.  It can happen.  Without a map, without a compass, without a cell phone... without food and water. There are plenty of dange ...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

The Galaxy S10 has finally been revealed to the masses, and it certainly doesn't disappoint. As the flagship to herald the tenth anniversary of the venerable Galaxy S line, the S10 has kept popular and familiar design elements like the immersive Infinity Display while employin ...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

This three dimensional Sierpinski tetrahedral structure was created with a lot of help from my Year 10, 12 and 13 classes. It is inspired by the Sierpinski triangle fractal. Our challenge was to take this design into three dimensions and create a fractal Christmas tree. We st ...more

Every iPhone, iPad, and iPod Touch owner has that one folder which contains those never used apps. You know what I am talking about, the folder that contain Stocks, Voice Memos, Game Center, Compass, Newsstand (That's right, iOS 7 allows Newsstand to be placed in a folder!!). ...more

Surprising? No. Exciting? Absolutely. After a grand introduction by at the Apple event on September 10, 2019, the iPhone 11 is finally here. We may have known nearly everything about this new iOS device ahead of time, thanks to the usual surge of reliable leaks and rumors. Th ...more

If you're like me, you were disappointed when NASA cut their human space flight program. No longer could children and adults in dead-end jobs dream of someday walking on the surface of the Moon or drinking floating globules of water through a straw. Homo sapiens as a species a ...more

With the best selling phone on Amazon in 2018, Lenovo had big shoes to fill when making the successor of the Moto G6. Fortunately, Lenovo was up to the task. The Moto G7 continues to provide a high performance-to-price ratio, offering a worthwhile upgrade for G6 users while re ...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

It's Monday, time to highlight some of the community submissions posted to the Math Craft corkboard. One of these posts inspired me so much, I think it merits a closer look. Today, I present a "simple" method for making a golden spiral using just a straight edge, a compass, an ...more

Ant-Man isn't one of the most famous Marvel superheroes. In fact, with the news of his individual movie came great doubt that the comic book legends could succeed in telling the tiny story of an oddball hero on the big screen. Yet with its humor and unique story, Ant-Man has b ...more

One feature in iOS you're likely underutilizing is 3D Touch, a highly useful, unique tool for iPhones ever since it first appeared on the iPhone 6S. Apple's pressure-sensitive interactivity gives iOS an extra layer of functionality, which can be clearly seen across the entiret ...more

I've been an iPhone user in the iOS ecosystem for years now after a brief stint in the Android realm. But, I'm also enthusiastic about varying forms of technology in general; I realize that iOS is far from perfect and that healthy market competition is beneficial for all. So, ...more