Form Tools

No matter what word game you're playing, whether it's Scrabble or one of its near-homogeneous counterparts like Lexulous, Wordfeud or Words with Friends, one of the easiest ways to stay on top of your opponent is knowing all of the legal two-letter words you can play. You're n ...more

What Is Ferrofluid? Ferrofluid is a black, solvent-based liquid, that, in the presence of a magnetic field, becomes strongly magnetized. The fluid is made up of nanomagnetic particles coated with an "anti-stick" or surfactant compound, suspended in a "carrier", commonly an or ...more

Last post, we looked at fractal cookies based off of the recipe by Evil Mad Scientist Laboratories. In this post, we'll follow their recipe for fractal cupcakes based off of the Koch Snowflake, which we used previously to decorate pumpkins for Halloween. This past Sunday, I d ...more

Welcome to Minecraft World! Check out our advanced tutorials and come play on our free server. For about the past month, the folks at Mojang have been leaking pre-releases of Minecraft 1.9 and they've added many exciting things. Additions to the game include: potions, new mob ...more

Oh, yeah. I was a skeptic, too. A few things are worth noting, though. 1) This stuff is cheap. You can get started on a project for very little money. Even advanced fabrication tools are reasonably priced. 2) This stuff is a global standard. You can develop a system here tha ...more

How much money do you think you're worth? Hundreds? Thousands? Millions? Think again. In the world of shopping centers and barcodes, you may only be worth a few bucks. Scott Blake is the mastermind behind the website Barcode Yourself, a free and simple tool that shows you jus ...more

Build a concrete "footer". Start your masonry project by building a concrete "footer" using standard construction techniques. Use 1" x 4" or 2" x 4" lumber as form boards. Nail or screw the wood boards to 1" x 2" stakes hammered into the ground using enough stakes to keep the ...more

Are you one of countless Facebook users who find the classic Thumbs Up symbol tiresomely sycophantic? You're not alone. Back in August of 2010, the widespread addition of an "official" Thumbs Down symbol to Facebook pages quickly revealed itself to be a scam, but only after co ...more

There are several ways you can go about creating your NURBS helix curve in Maya; I will demonstrate the two easiest ones. For advanced users, and people that like to figure stuff out by themselves, here are the two techniques in a nutshell: You can either create a straight N ...more

What is Internet Download Manager? Internet Download Manager (IDM) is a tool to increase download speeds by up to 10 times, resume and schedule downloads. Have you ever wanted to increase you download speed form 4kps to 80kps? If you answered yes then you need Internet Downlo ...more

Halloween just isn't Halloween without Jack O'Lanterns. Below, anything and everything you need to know on the art of pumpkin carving. 1. Prepare a Pumpkin for Carving Serious Eats' video demonstration is for true novices: "This video is for you unlucky souls who never got t ...more

Polymer clay is an exciting arts & crafts medium. Actually, "clay" is a misnomer; it contains no true clay, but rather consists of tiny particles of polyvinyl chloride (PVC) combined with plasticizer, which is what makes it malleable like clay. What makes it so "exciting? Wel ...more

Fans of Doctor Who know that the sonic screwdriver is the ultimate tool. It can unlock doors, turn on lights, detect life forms, solder wires, and sabotage weapons. Presumably, the sonic screwdriver creates sonic vibrations to achieve whatever the doctor wants by vibrating th ...more

If you've ever been inside of a real laboratory, you probably noticed how expensive the equipment is. You'd never be able to afford even just one of those ultra high-tech machines required to splice genes or split atoms. Even the lesser machines can be prohibitively costly, in ...more

In this article, I'll show you how to make a high-powered, long-range, air-powered rocket gun. This launcher is based on a sprinkler valve, a modified propane tank, and a few other components. Though not hard to make, this device is VERY dangerous! The rocket can seriously har ...more

Glass is one of the least reactive substances known to chemistry. It is the standard container material for almost all lab chemicals because it's so inert. But there are a couple of substances that have strong reactions with glass. Sodium hydroxide, aka solid drain cleaner or ...more

We've all seen the breathtaking, colorful photos of the Eagle, Egg and Cat's Eye Nebulae. You may not recognize them by name, but you've seen them, whether in astronomy textbooks, magazines, websites, album covers, or tee shirts. They are some of the most striking photographs ...more

In honor of the new Astronomy World, I thought we should look at a few planetary icosahedrons. The icosahedron is the most round of the Platonic solids with twenty faces, thus has the smallest dihedral angles. This allows it to unfold into a flat map with a reasonably acceptab ...more

Hello everybody, I am Merrill Kazanjian (aka kazanjianm on YouTube). I will be your instructor. Before starting your figure drawing session. Please watch this short, funny video first to learn the basics of human proportion. The rules that you learn in this video will be very ...more

Here's a Math Craft project that takes less than 20 minutes, has an attractive, practical result, and is at least a little mind-blowing due to folding along curves. The designer of these boxes is Phillip Chapman-Bell, who runs an amazing origami blog and has a spectacular fli ...more

These boxes are inspired by a comment from Imaatfal Avidya on a corkboard post on Platonic polyhedra from sonobe units. Imaatfal was commenting about how the cube and octahedron are related to each other. "There is something cool and special about the platonic solids—there is ...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

Since it is now the holiday season, I thought we could spend this weekend making some baked goods that have mathematical patterns on them. In this post, we'll look at making cookies that have a fractal pattern based off of a modification of the pixel cookie technique. The peo ...more

More password cracking action from Null Byte! Today we aren't going to be cracking passwords per se, rather, we are going to learn the basics of generating rainbow tables and how to use them. First, let's go over how passwords are stored and recovered. Passwords are normally ...more

WonderHowTo is a how-to website made up of niche communities called Worlds, with topics ranging from Minecraft to science experiments to Scrabble and everything in-between. Check in every Wednesday evening for a roundup of user-run activities and how-to projects from the most ...more

“Of a generation who remembers Tiananmen Square, 1989, I considered how some excuse – the lack of, or slow progress on, human rights in China because ‘times have changed’, or because other concerns, including making money, come first, or because rights, freedom, and democracy ...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

Does this video prove that otherworldly intelligent life has visited Earth? No. It does not prove anything other than there are designs ‘etched’ onto the surface of a field. Does the video immediately above prove that otherworldly intelligent life hasn’t visited Earth? Yeah, y ...more

Today's article serves as a general guide to keeping Windows 7 and Vista clean. The goal is to clean up your messy computer and have it running at maximum performance in no time. The question at hand is—what is your computer's performance like? Not great? Do you think it coul ...more

Amazingly, a lot of people I know haven't even heard of SOPA or PIPA. Now, every English-reading person with an internet connection will finally have those two four-letter acronyms emblazoned in their minds. For the entire day today, Wikipedia's English-language site will be i ...more

Two weeks ago I reviewed browser-based video editor WeVideo and was amazed. Amazed not because WeVideo is a competent iMovie replacement for the casual editor (which it is), but amazed that a browser-based editor can work at all. Today I'd like to have a look at another brows ...more

When your computer first connects to a nework, it sends out a request on the network to lease an IP from the router. The router then leases your computer an unused IP address, which is used as a unique routing address for sending traffic that is meant for you, to you. As every ...more

In Monday's post, we created a sliceform model of a hyperbolic paraboloid. In today's post, we will create a similar model using skewers. The hyperbolic paraboloid is a ruled surface, which means that you can create it using only straight lines even though it is curved. In fac ...more

It's Monday, which means once again, 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 sliceform model of a hyperbolic paraboloid. Rachel Mansur put up two posts on her Modula ...more

It's Monday, which means once again, it's time to highlight some of the recent community submissions posted to the Math Craft corkboard. In this post, we'll also make a flexagon, which is a type of transformable object. Rachel Mansur of Giveaway Tuesdays posted several pictur ...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

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

Torus knots are beautiful knots formed by wrapping a line around a torus and tying the ends together to form a loop. The resulting knot has a star-like appearance when viewed from above. The 36 examples with the least number of crossings can be seen at the Knot Atlas's page on ...more

In mathematics, a knot is a closed circle in a three-dimensional space that crosses itself multiple times. Since it is closed, it has no ends to tie, meaning you can't actually create such a knot. However, if you tie the ends together after you create a knot in the standard wa ...more

If you thought the last post on Two Circle Wobblers was wild, then wait until you see what happens when you build wobblers out of two half circles or two ellipses. In both of these cases, the center of gravity still remains constant in the vertical direction, allowing them to ...more

PVC isn't something you want to send to the landfill. It's not going to do anything good for the ground when it's buried. It is also something you really, REALLY don't want to send to an incinerator. When burned, PVC releases some really nasty chemicals, including hydrochloric ...more