Piece-of-paper

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

Curve stitching is a form of string art where smooth curves are created through the use of straight lines. It is taught in many Junior High and High School art classes. I discovered it when my math students started showing me the geometric art they had created. The process of ...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

Back in 2007, YouTube user HouseholdHacker posted a parody video on how to make a high-def speaker for under a buck. MythBusters took on the challenge and busted it. Although that particular method doesn't seem to work, that doesn't mean you can't make your own speaker for le ...more

Anonymity is something that doesn't exist today. Everything you do in the world is tracked, from the purchases you make to surfing the internet—even taking pictures on your iPhone. Everything you have ever said and done on the internet is still there—somewhere. This is called ...more

In this series, I'll be exploring electromagnetic weapons, how to build them, their function and application to the future, and the amazing possibilities electromagnetism has to offer. First, the electromagnetic pulse generator, or EMP. You've probably heard of these before, a ...more

As exciting as it can be to crack open a beer, there's nothing fun about wandering around a party and asking other partygoers for a bottle opener. Don't worry, we've got you covered: here are 10 crazy ways to get to drinking while impressing your friends with your ingenuity. ...more

Americans consume over 1.2 billion pounds of potato chips each year, making it one of the most popular snack foods in the United States. If the entire population were addicted, it'd be about 4 pounds per person each year. Not everyone does, though, so it'd be more realistic t ...more

As someone who's dependent on glasses to see on an everyday basis, losing or misplacing them is obviously a bad thing. I can't even see clearly enough to find the glasses that I just lost, so I'm pretty much blind now. Without your prescription eyewear, the world is a blur. P ...more

Signal is one of the best end-to-end encrypted messengers on the market. It offers robust security, keeps minimal information about its users, and is free to use. Switching to it as your main messenger can be a bit daunting, so to help, we created a guide to walk you through t ...more

Last post, the Sonobe unit was introduced as a way to use multiple copies of a simply folded piece of paper to make geometric objects. In this post, we are going to explore that concept further by making two more geometric models. The first is the truncated icosahedron, which ...more

The new iOS 14 for iPhone arrived Wednesday, Sept. 15, 2020, alongside iPadOS 14, and there are a lot of features to uncover. Improved widgets. Better home screen customization. Exciting Messages improvements. New abilities in Camera and Photos. There's so much here that it'll ...more

Fondant looks pretty, but man, it sure does taste weird. Don't Miss: How to Frost Your Cake Like a Pro If you've ever slaved over decorating a cake with fondant, you know how disappointing it is to watch people peel it off and only eat the cake. You can avoid this by skippi ...more

In a previous article, I demonstrated an Arc Welder made using parts from old microwave ovens. Video: . Here is part 1 of 2 on how that arc welding machine was made, and how you could make one too! This is the first of two parts on building it, focusing on the modification of ...more

We've all made them. I remember making hundreds of paper snowflakes when I was in elementary school. You take a piece of paper and fold it in half, then fold it in half again. You now have a piece that is one fourth the size of the original. Now you fold it in half diagonally. ...more

Get ready to draw like Leonardo da Vinci, or, at least, trace like him. A new augmented reality app, SketchAR, is the first mobile app that uses AR to allow users trace an image on real paper. The Lithuania-based company describes their product as "an application through which ...more

It's once again Monday, which means it's time to highlight some of the most recent community submissions posted to the Math Craft corkboard. I also thought we'd take a look at building a model that has appeared in numerous posts. It's the simplest of the intersecting plane mod ...more

Written instructions on how to draft a basic skirt pattern with accompanying video. Take your correct measurements before you begin. Video: . Step 1: Measure Carefully measure your waist, hips and hip drop. Step 2: Draw a Rectangle The horizontal lines (1 to 2 and 3 to 4 in ...more

Pringles are just as well known for their cylindrical packaging as for their suspiciously addictive fried crisps. Yes, that's crisps—not chips. They do not meet FDA standards for "potato chip" classification since they're only made up of 42 percent potato product. "Potato ch ...more

Christmas decorations aren't cheap. From outdoor lighting to fir trees, decorating for the holidays can break the bank. That's where ingenuity comes into play, like hacking battery-operated Christmas lights, modifying lighting patterns and building Christmas tree ornaments fro ...more

My bathroom is like my own private arcade room. Whenever I'm seated comfortably on the toilet, no one is going to disturb me, so I can play anything I want on my smartphone. You probably do it, too — and your parents, kids, friends, colleagues, and boss — so don't be afraid to ...more

Combined, the new iPhone XR, XS, and XS Max are the largest suite of iPhones that Apple has ever released at once time. While the XS remains the same size as last year's iPhone X, the XR and XS Max are even larger. But which size is right for you? We can help you decide which ...more

Every year I wait until the last minute to wrap Christmas presents. I always tell myself I'm going to get it done ahead of time, but it never happens. And the worst thing that can happen when you put it off is running out of Scotch tape. If you find yourself in this predicame ...more

NFC, or near-field communications, is a hardware feature that has been built into most Android phones for the last four years. It's essentially a low-power data connection that can be used to initiate a quick command by bringing your device within range of a compatible receive ...more

Why do we still need to plug in our phones to charge them? Wireless charging exists, and has for quite some time, but most manufacturers don't include it in their devices. When it comes to the Samsung Galaxy S4, you can buy a QI-compatible wireless charging kit, but between th ...more

Anonymity is very important to many internet users. By having your "e-identity" exposed online, you can be stuck with a number of unwanted issues, such as: Privacy invasion. Internet tracking. Exposure to being hacked. However, what if we wanted to spend money anonymously? T ...more

Love taking photos with your smartphone, but don't have a zoom? This tutorial by Unitips will show you how to DIY one with a few simple parts. All you'll need is 1/4" bolts, washers, and wingnuts (two each), some sheet metal, and a pair of binoculars. Video: . The only difficu ...more

If you've recently binged out on a can or two of Pringles potato chips, don't throw away those empty containers just yet. After cleaning the insides, you can transform your cylindrical chip canisters into uncooked spaghetti noodles holders, kaleidoscopes, pinhole cameras, suga ...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

There are a million things you can do with a few sheets of paper, from classics like an origami crane to a paper version of PSY that dances Gangnam Style, or even an M16 assault rifle. There's not much you can't make with paper. If you're looking for something a little simple ...more

You can spend all day putting up shelves and still have them end up crooked. Even if you've got a stud finder or a level, it's still easy to make mistakes, and a few millimeters is all it takes to screw make a shelf noticeably uneven. If you find yourself in this predicament, ...more

Writing secret notes with lemon juice was one of my favorite pastimes as a child. All it took was a small flame to lightly scorch the paper and reveal the hidden message. Now that I'm tall and pay bills, lemon ink just isn't exciting enough anymore. Luckily, we can use another ...more

Sounds like an anomaly, right? When I was a kid folding frogs, my mother gave me origami paper that was most certainly dry. But the works below by Vietnamese-American artist Giang Dinh were folded with one *wet* piece of paper. It's a technique called "Wet-Folding", invented b ...more

Valentine's Day is almost here, and if you're like me, you're scurrying to do something special for your mate. The standard chocolates and flowers just isn't cutting it anymore, and you can only make so many homemade cards before it becomes banal and meaningless. So, what can ...more

In this series on weaponized lasers, I'll be exploring the function, operation, strength and building instructions for three basic laser weapons; CO2, Diode, and Flashlamp. These laser types are just a few of many, selected because of their simplicity and basic construction (d ...more

RFID cards are becoming a fairly common way to purchase goods, but they're already widely used to pay fares on buses, trains, subways, and trolleys across various cities. TAP cards are quick and reliable, but it can be a real pain to remember to bring them with you, especially ...more

Apple's default browser for iOS, Safari, has a ton of useful features, and there's so many that it's impossible to know everything you can do to browse the web more efficiently. One you may not know about brings the Command + F keyboard shortcut right to your mobile browser so ...more