Bending Notes on Harmonica

Modular origami is a technique that can be used to build some pretty interesting and impressive models of mathematical objects. In modular origami, you combine multiple units folded from single pieces of paper into more complicated forms. The Sonobe unit is a simple example un ...more

The widely used expression "free as a bird" intimates an enviable existence: delicate, yet mighty wings transporting to destinations no human could so breezily venture. But despite their fanciful, superhero ability, in truth, the avian race leads one of the most difficult exis ...more

Welcome to Math Craft World! This community is dedicated to the exploration of mathematically inspired art and architecture through projects, community submissions, and inspirational posts related to the topic at hand. Every week, there will be approximately four posts accordi ...more

This article details the step-by-step instructions on how you can make a strawberry tower that can be used for your hydroponics/aquaponics system. The water dripping through the system contains the nutrients, so soil is not used. The growing media is expanded shale, but you co ...more

INTRODUCTION The everyday PC user doesn't think much about its PC and problems that can cause critical damage to their data or other stuffs stored on Hard drive and other electronic parts until the problem actually occurs. Once a failure happens, the repairs can be costly and ...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

My JO was watching The Simpsons on FOX the other day, like she wholeheartedly does every evening, and I joined her, much like I always do— though I must admit, I'm not as obsessed with the cartoon family as much as she is. Just like she isn't as obsessed with SCRABBLE as I am. ...more

Clumsiness is the great equalizer when it comes to smartphones — it makes no distinction between the most expensive flagship handset and cheaper mid-range models. A hard drop onto pavement will usually result in a shattered screen, regardless of how pricey your device is. And ...more

Your smartphone stays with you everywhere you go, so it's only a matter of time before you spill coffee all over it or drop it on the ground. For some of you, it has already happened, perhaps even multiple times. That's why we thought it was important to find out which flagshi ...more

Hello again, faithful readers. For today's lesson, we will be learning the correct way to restring and tune an electric guitar. I almost wasn't going to post this because it is so basic. But, as with many basic tasks, there are a lot of people who know how to do it, but can't ...more

A Swedish digital artist has developed an app for the iPhone X that creates mind-bending 3D illusions that correlate to the user's point of view. The app, called TheParallaxView, uses the TrueDepth camera on the iPhone X to track the user's head movements and generates images ...more

Verizon could be getting in on the autonomous vehicle party, judging by its recent investment in driverless software company Renovo Motors. The Wall Street Journal reports that Verizon's (strategic) generosity was part of a $10 million round led by venture capital firm True V ...more

You've packed your own lunch and can't wait to get to the little vacuum-sealed cup of dessert you brought along. You keep rummaging in the bottom of the bag, searching for the spoon you're certain you packed…except you didn't. Uh-oh. If you're in a break room that keeps plast ...more

An isomorphic (or self-transposing) keyboard is "a musical device where a grid of notes is displayed to the user and the interval change between notes in constant for any given direction." For those of you who didn't grow up playing the piano like I did, that basically means t ...more

Glow sticks, a popular favor at parties and outdoor events, and a must-have on Halloween, can be traced back to the United States Navy in the mid-1960s. The military desired improved visibility during night operations, and glow sticks, with their small-size portability and lac ...more

Wall framing. How to frame a wall. Whether you're re-sheeting an old wall or building a new timber frame wall, before you install the plasterboard or drywall, take the opportunity to have a really good think about what services or insulation qualities you might want to have in ...more

Snapchat has added yet another social feature to its mobile app, and this one makes it possible to use augmented reality with a group of friends over video. Rolling out worldwide this week, the new Group Video Chat feature gives Snap users the opportunity to video conference ...more

While not quite a true self-driving car, Mercedes is gearing to release a vehicle with a plethora of assistive-driving features, some that might have you excited about what autonomous vehicles can do in the future. Mercedes-Benz's updated S-Class vehicles, to be revealed at t ...more

What better band than Pink Floyd, the pioneers of psychedelic and progressive rock, to show the music industry how to reinvent album art for the augmented reality age? All rhetorical questions aside, Sony Records saw the opportunity to promote The Later Years, an 18-disc boxe ...more

The collaboration between Magic Leap and Wacom, which was first announced during last year's L.E.A.P. conference is progressing rapidly. And now we have a little more information in the way of a visual demonstration shown off by Nobutaka Ide, Wacom's CEO. Don't Miss: Hands-O ...more

Despite a rocky start with plenty of feature disparity, the Google Assistant now provides a pretty consistent experience regardless of what device you're using it on. Be it Android, iPhone, or Google Home, the AI behind the Assistant is virtually identical — including its quir ...more

Every fall, we can expect a few things: leaves changing colors, cooler temperatures, and Samsung and Apple releasing new phones that fanboys and fangirls will argue about until the following year. This year, Samsung is mixing it up, releasing two phones in the Galaxy Note seri ...more

It was only a few years ago when the idea of a 5+ inch display on a smartphone was unreal. With most hovering around four inches at the time, a phone that big seemed impossible to hold. We've come a long way since then, but it appears another wave of large displays will soon h ...more

This is not essentially the next part in the series, but an expansion of previous part about why should you not use cryptocurrencies. Now I am not really aware of the stereotypes that surround most of the not-so-famous topics, so I couldn't add it at the time of posting that ...more

Nearly nine months after the release of the iPhone 6 and 6 Plus, we finally have some solid information on the "S" model of Apple's flagship device, slated for release this fall. Coming straight from Apple analyst Ming-Chi Kuo of KGI Securities (via AppleInsider), quite a few ...more

The new 007 film, Skyfall, comes out this Friday, and dreams of becoming a super-spy have taken over my mind. Only I can't afford any of James Bond's awesome gadgetry or amazing cars—and you probably can't either. But that doesn't mean you can't fake it a little by adding a t ...more

Christmas trees, once decorated and brightly lit, are the penultimate holiday decoration, but authentic pines lose their brilliance fast without any nourishment. Plus, they are major fire hazards without regular hydration. But watering one requires a lot of sliding around on t ...more

As you know, it's impossible to be a Steampunk without a pair of goggles. In fact, there are entire communities dedicated to judging other Steampunks based solely on their goggles. A Steampunk without goggles is like Samson without his hair, or a duck without a beak—totally po ...more

With the change to a glass back, many of us are concerned about the durability of OnePlus 6. While glass does offer some benefits such as lighter weight, without proper reinforcement, it can easily shatter in one drop. Now we have our our first look at its durability thanks to ...more

We've been dying to see how the new LG G6 stands up to wear and tear, with its near bezel-less display and glass construction, ever since the device was announced at Mobile World Congress 2017 in Barcelona. It was put to the scratch, burn, and bend test, courtesy of one of ou ...more

When it comes to cooking grains, there is an unspoken rule to never stray from the exact measurements. Consulting charts for the proper ratio of liquid to grain is considered the difference between crunchy, undercooked pebbles and a mushy mess... that is, until now. Don't Mis ...more

David Blaine has made millions off his magic tricks and mind-bending illusions, so why shouldn't we get in on the action, too? Well, your Samsung Galaxy S3 can do all kinds of things, but magic isn't one of them...yet. Thanks to Android developer Badea Bogdan of Binary Buildi ...more

How to cut Drywall, Sheetrock, Plasterboard. THE EASY WAY! G'day Knuckleheads, Uncle Knackers here and welcome to Video Two of my ten part series titled 'My Top Ten DIY Tips' as nominated by you.. In todays video l'm going to give you the basics of cutting drywall, plasterbo ...more

Most people wouldn't think of butter as a flammable substance, but in this project—it definitely is! We're making emergency candles that burn for hours using just some toilet paper and a bit of butter! Video: . WARNING: An open flame poses a fire hazard. Do not use near any fl ...more

In this project, you'll learn step by step how to modify a microwave oven transformer into a high-current device that can pump out 800 amps of electrical current, which is enough amperage to melt metal. If you liked the Metal Melter you saw in my previous project, here's how y ...more

You may or may not care about this, but sometimes it physically upsets me when I see gears stuck together haphazardly, with no concern for whether their teeth interlock. I mean, what do you do with non-interlocking gears? So when I sat down to design a paper chain of gears, I ...more

A good smartphone can be the perfect workout companion. You have music for motivation, videos for pushing through boring cardio sessions, GPS to keep you on course, and even an array of sensors for gathering data about your workout. But not all phones are created equal when it ...more

The Galaxy S9 and S9+ have a new camera feature that Samsung is calling "Dual Aperture." On the surface, that may sound like your typical techno-jargon, but it actually has some significant implications for the future of smartphone photography. In a traditional camera like a ...more

In one of my previous articles, I showed off how to make water freeze into ice instantaneously. In this article, I'd like to elaborate on this, and show how a glass of water can turn to ice instantly on command. What exactly is this supernatural power? Discover the secrets to ...more

Smartphone videos get better and better each year. Seven or eight years ago, who would have thought iPhone and Android phones could support 4K video recording. Some phones can even shoot slow-motion at 960 fps. But no matter the resolution or frame rate, a phone's rolling shut ...more

Tea has been around for thousands of years, and as a result, tons of customs and ceremonies have sprung up around its consumption. Some cultures take their tea plain, while others put things in it. Sometimes there are special tea-holding vessels, other times not. Maybe there w ...more

There's a set of drawing tools that have been available for a long time on the iPhone that helps you create handwritten notes and sketches. It's great when you need a free-form way to capture your ideas, and now it's even better. Apple added shape recognition in iOS 14 so that ...more

One of the more unique aspects of Fortnite Battle Royale is the ability to create structures. Using in-game materials, players can create walls and ramps for cover and to extend mobility. But creating isn't limited to just the basic generic structures. To really maximize their ...more

In Guardians of the Galaxy Vol. 2, Mantis resides in the shadow of an Ego who considers himself the actual heart of the universe. But when it comes Halloween costumes? Mantis will be the center of attention every time. The internet sure has noticed Mantis, and it's abuzz with ...more

Update 10/23: The hits just keep on coming. We're now seeing reports of a "smearing" effect when scrolling through apps on the Pixel XL 2. We'll expand on that at the bottom of this article, but it's still worth reading the background information on issues with LG's new POLED ...more

The hype train that left the station years ago has reached its first stop, and now we finally have access to the Magic Leap One, the device many have claimed would revolutionize the augmented reality space at launch. But is that really true? On Wednesday morning, as Next Real ...more

The calendar app is one of the unsung heroes found within your iPhone. It's the ultimate personal assistant that you've come to rely on to keep track of your schedule and ensure you never miss a class or meeting, all while reminding you of upcoming birthdays and deadlines to h ...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

Hello, all. In this article, I will be showing you how to make one of the most useful products known to man. I am talking, of course, about charcoal. You might be surprised at just how many uses this stuff has. You can use it to purify your drinking water, replace your aquari ...more

A typical resistance spot welder can range in price from about $200-$800, but with a little resourcefulness and a bit of free time, you can make one like this for about $10 or less. Before starting on this project, there are a couple of videos you should check out, because yo ...more

If you want to make clothes for your cat, you're on your own. As I recently said in this article, cats will just totally flip out if you make them wear things. Your dog may also flip out, but I've found them to be more tolerant, personally. Anyway, here are the pictures of th ...more

Mystery is a tricky thing. Used correctly, it can give onlookers the impression that wondrous and perhaps valuable things are afoot. However, once the veil of suspension of disbelief is removed in any significant way, that same mystery can quickly turn into not just skepticism ...more

In the first part of this two-part guide, I covered cutting, grooving, beveling, making holes, and stamping/tooling. I hope you enjoyed that part, because we're pushing the accelerator to the floor and moving ahead at full speed! Covered in this section will be: Burnishing D ...more

Apple's iOS 15 update has some great camera features that can benefit professional photographers and casual users alike. And while many are exclusive to newer iPhone models, there are still some Camera app upgrades and additions that apply to all iPhones running iOS 15. 1. Im ...more

With smartphone cameras and software getting better and better every year, more and more users are getting passionate about photography. So when you're shopping for a gift to get someone, if they have a smartphone, chances are they'll more than appreciate some tools and access ...more

Just days after Google released the official Android 11 update, Samsung already had a pre-beta build of One UI 3.0 available for developers to test their apps on. So this year's main OS upgrade is likely hitting Galaxy phones even earlier than we thought. Some features in the ...more

The biggest problem with Netflix (which is hardly a real problem) is the overwhelming amount of content available for streaming. Browsing through profile-specific categories might help narrow down your search on something to watch, but some of those categories come and go with ...more