Math Maths Search Results

How To: Make Yin-Yang Modular Polyhedra

Last Thursday's post demonstrated how to Make Yin-Yang Pillow boxes, which were based on equilateral triangles and squares. The units for making these boxes were created by Phillip Chapman-Bell, who runs an amazing origami blog and has a spectacular flickr photostream. Using these units, you can make also make 4 of the 5 platonic solids. I made an additional template based on the regular pentagon so that the dodecahedron can be built completing the set.

How To: Make a Hyperbolic Paraboloid Using Skewers

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 fact, the hyperbolic paraboloid is doubly ruled and is one of only three curved surfaces than can be created using two distinct lines passing through each point. The others are the hyperboloid and the flat plane.

How To: Make Fractal Cupcakes

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.

How To: Mine Bitcoin and Make Money

Bitcoin is a new currency built off "Satoshi Nakamoto's" (alias) 2008 Bitcoin white-paper. Bitcoin provides its users with a way to make peer-to-peer (P2P) transactions without having to use a bank as a mediator. There is no middle man, no corporation backing it, and no one has access to your money, except you. It's decentralized from government, run by the people, for the people.

News: A Few Helpful Google Search Tips

One of the things I consistently notice amongst fellow internet users is that many people don't know how to properly search for stuff. Google may have served you well in the past, but I'm going to share a few little tricks with you to help make your search results even spiffier.

How To: Make These Sonic Distance Sensors for the Bad Driver in Your Life

Today's fancy cars come with all sorts of options, from power mirrors to working seat belts. Some of us condemned to live in the reality of capitalist recession have no car, or perhaps a very modest one. But your modest car can still have some cutting edge technology wedged into the trunk and dashboard if you know what you want and where to look for parts. Today, we make a parking sensor using a sonic range finder, just like in the vehicles our owners drive!

How To: How Anyone Can Retire Early & Wealthy, Part 1: CDs

I'm pretty sure that it's a universal dream for everyone in the world to retire early. Who wants to to be stuck with the rest of the country and retire when you're almost 70 years old? You heard me right, 70! Most people can't go out and do the things they love to do by the time they're 70, unless they've been practicing good health and exercise their entire life.

How To: Make Icosahedral Planet Ornaments

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 acceptable amount of distortion. In fact, Buckminster Fuller tried to popularize the polyhedral globe/map concept with his Dymaxion Map.

How To: Make Sierpinski Carpet Cookies

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.

AudioSurf vs. Polynomial: The Battle Between Psychedelic MP3 Games

In 2008, Audiosurf came out on Steam, creating the psychedelic music game genre. If you haven't played it in the intervening three years, you're missing out on one of the coolest things in video games. The player selects any MP3 on their computer, then the game builds a unique level based on that song, which the player must then navigate whilst playing a block-matching, Tetris-like puzzle game. It's an incredibly compelling audiovisual experience, one with immense replay value and surprisingl...

News: Of Coyotes and Chickens

In my earlier post about long-term strategies I promised I’d ask some of my neighbors who do what I call factory chicken farming (Let 1000 Chickens Bloom) if the coyotes that have shown up will change the way they play the game. The one guy who replied in any detail said that he wasn’t sure what he was going to do yet, but he thought that he was losing 50 chickens each time he harvested them pressing “Collect Bonus” using a coop.

Learn Java: Part One

So you want to learn the basics of the fantastic language Java, but you don't want to search the Inter-webs looking for a great tutorial. Well you came to the right place, now may I present to you JAVA.

News: Welcome to 0x10c World! A Community for Mojang's Latest MMO Space Game

Yesterday, Mojang announced their next video game project 0x10c, and the response has been tremendous. Discussions have covered everything from the math mystery over the game's name, to creating projects that interpret the assembly instruction code the in-game computers use (more on that later), to the debate over why a monthly fee would be required to play online in the "multiverse". To answer that last one, Mojang wants to run everyone's virtual computers in their cloud, even if the user is...

Modular Origami: How to Make a Truncated Icosahedron, Pentakis Dodecahedron & 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 is a common stitching pattern for a soccer ball. The second was supposed to be the pentakis dodecahedron, but through systematic errors last night, I actually built a different model based off of the rhombic triacontahed...

Modular Origami: How to Make a Cube, Octahedron & Icosahedron from Sonobe Units

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 unit from modular origami that is both easy to fold and compatible for constructing a large variety of models. Below are a few models that are easy to make using this unit.

The Rdio App for Mac: A Desktop Alternative to iTunes

A few weeks ago, I wrote about why I think streaming music services like Rdio.com are better than Apple‘s iTunes Music Store. This week, I follow up with a how-to about Rdio for Mac, a desktop music player that streams music from your Rdio.com account. Even though Apple is introducing new iTunes features, I think you will find Rdio for Mac a much more affordable option—especially if you like to listen to new music on a weekly, or even daily basis.

Mastering Security, Part 1: How to Manage and Create Strong Passwords

I've seen numerous tutorials on how to create a "strong" password. This makes me laugh. These titles imply "one" password, which is wrong in and of itself. A person should have many passwords, all different, and all extremely long. People may ask how they're supposed to remember lengthy passwords and why their current password isn't good enough. Well, I'm going to show you.