Exact Stones Search Results

Redstone Logic Gates: Mastering the Fundamental Building Blocks for Creating In-Game Machines

Many people get so discouraged by their failures with redstone that they give up using it entirely, or never progress beyond using simple switches. However, by incorporating logic gates into your redstone designs, the applications are nearly limitless. The ability to add multiple switches to your machines is just a small part of what logic gates can do. Most importantly, they give you control.

How To: Pick Basic Tumbler Locks

Professionally and academically speaking, I am a computer scientist, but I also enjoy lock picking as a hobby, so I thought I would share what knowledge I have with this. Before we start doing anything, first we need to understand the fundamentals of how locks work and then acquire and familiarize ourselves with basic lock-picking tools.

The Sweet Smell of Success: DIY Smoke Mix with Sugar and Potassium Nitrate

I finally got around to trying out another one of Will's mad science experiments and found out that this one was actually more satisfying (and less frustrating) than my slightly uncooperative jar jet. There's something very pleasing about making potassium nitrate at home in the kitchen and then watching the transformation from semitransparent liquid to spiky, frozen crystals. That was the best part for me, second only to igniting it with its sugar companion.

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 a Self-Watering Greenhouse (In-Depth Tutorial)

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 this one concept opens doors to further innovation. After I finish this article, I'm going to put another one up that shows a hinged, raised bed house and talk about some amazing things you can do from there.

News: Protect Your Dropbox Files from Prying Eyes (+ 2 Alternative File Hosting Options)

Dropbox continues to make headlines with their recent programming blunder which left the accounts of its 25 million customers wide open during a four-hour time span. During the duration, anyone in the world could access any Dropbox profile by typing in any password. And seeing as this wasn't the first security failure, everyone, including the most loyal users are considering dropping the Dropbox.

News: 10 Ways to Lose Weight Using an iPhone

Sounds like a false promise à la infomercial or typical spammy web headline—how can a 4.8 ounce gadget aid in weight loss? But, in truth, "who" better to act as a dedicated personal trainer and nutritionalist than the iPhone? The smartphone is completely and utterly tethered to the daily life of the average middle to upper class American. It's reliable and exact. All it needs is a charged battery, the right app, and of course, as with every diet and fitness regime, a user with unwavering self...

How To: How A Computer Works

Many folks seem to treat their computers as a sort of mysterious alien technology that only the shamans of the IT Department can comprehend. You might have gotten it into your head that you're just not good at computers and will never understand them. On the contrary, getting a basic grasp on all the amazing stuff inside your computer doesn't require you to be a technological genius. Most people will never have a need or desire to open up their computer and poke around. But it's your machine....

Tweens 'n' Teens: Charlie St. Cloud

Hey editor Mike here from thesubstream and I would like to welcome our newest contributor to the site, our tweens 'n' teens cinema specialist, my little sister Amanda. We're going to make her go watch all the movies that we don't want to see ourselves and then make her tell us and you about them. Up first: the Zac Efron vehicle Charlie St. Cloud.

How To: File a Last-Minute 2010 Income Tax Return: Save Money, Get Free Tax Help & More!

Ever since high school, I've been preparing my own taxes. Each year it gets more and more complicated, which results in me filing later and later, avoiding it until I have the time or just can't wait any longer. I even resorted to using TurboTax online to help do some of the grunt work for me these past couple years, but that hasn't stopped me from being lazy about it. I have yet to file my 2010 taxes, but I will very soon. Tomorrow, in fact—before TurboTax raises their prices.

How To: The Social Engineer's Guide to Buying an Expensive Laptop

Laptops are almost a necessity in today's society. It doesn't help that a laptop that can actually increase your work productivity will put at least a $1,500 dent in your wallet. I'm sure you have searched around to try to find factory direct deals, or (shiver) even looked at used laptops, but that isn't the way to go. You need something that actually has a warranty, and good performance, but at the same time, doesn't require you to sell a kidney. This can cause quite a dilemma, as it can tak...

How To: Avoid Computer Fatigue (As Best As You Can)

I don't know what I'd do without my computer. I can't do my job without the internet. I communicate with employers, friends, and family through emails, video chat and Twitter. I schedule meetings and plan deadlines. I bank. I shop. I read the news. I play games. I watch my favorite shows. Yes, I'd be rather lost without this little plastic box of circuits.

How To: Interview And Choose A Nanny

Choosing a nanny or au pair for your children is a process that should be organized and performed carefully, to ensure you find someone who can be trusted, will contribute significantly to the development of your child and integrate well into your family.

How To: Build & Hide a Campfire from Your Enemies — The Dakota Fire Pit

Fire.  It’s everywhere— always has been.  From the Ordovician Period where the first fossil record of fire appears to the present day everyday uses of the Holocene.  Today, we abundantly create flames (intentionally or unintentionally) in power plants, extractive metallurgy, incendiary bombs, combustion engines, controlled burns, wildfires, fireplaces, campfires, grills, candles, gas stoves and ovens, matches, cigarettes, and the list goes on... Yet with our societies' prodigal use of fire, t...

How To: Create Practically Anything, Part 2: 3D Models in SketchUp

Creating any object you want is as simple as point and click if you have a 3D printer at home. If you don't have one handy, there are a few companies that offer printing services online. But to help services realize your design in extruded plastic, you have to make a 3D computer model for the printing machine. For beginners, the free Google SketchUp application is the best choice of software. Using only a few tool bar buttons and a scroll wheel computer mouse, you can model literally any obje...

How To: An Entry Level Guide to Finding and Reading Logs (And Maybe Staying Out of Jail)

Big brother is watching when you're playing around on another system—and big brother is that system. Everything from operating systems to intrusion detection systems to database services are maintaining logs. Sometimes, these are error logs that can show attackers trying various SQL injection vectors over and over. This is especially so if they are using an automated framework like sqlmap that can spam a ton of requests in a short time. More often than not, the access logs are what most amate...

Make Your Own Nitrous Oxide: Hilarious Science

If you've ever had teeth removed/minor surgery, you most likely received some laughing gas, or nitrous oxide. This gas creates a happy, lightened feeling, and causes instant laughter. In this article, I'll show you how to make some. BUT BE CAREFUL!!! DO NOT proceed in this experiment unless you have EXTENSIVE knowledge of chemistry!!! Misuse of this procedure could result in the production of LETHAL GASSES! However, the set-up is quite simple, if done correctly should not lead to any issues. ...