Encrypting Pictures Using Chaotic Cellular Automata It’s been more than ten years now since the idea emerged of using chaos to encrypt messages. The approach is straightforward. Start with a message, superimpose it on a chaotic signal and send. Today, Marina Jeaneth Machicao and a few pals at the University of San Paul in Brazil reveal a straightforward way of extending this method to images. Their idea is to use a cellular automaton to generate a pseudorandom signal. The trick, of course, is to find a rule that generates a pseudorandom output so that the resulting grid looks like noise. These guys examine a number of automata to see which generates the most random output. One crucial point is that the output of this automata is precisely determined by its starting state. That’s important because they say this starting state can act as a password. So here’s how it works. A receiver with the correct password can view the image by carrying out the procedure in reverse. The problem is this.
Perfect Iced Coffee | The Pioneer Woman Cooks Iced coffee is my life. When I wake up, often around the time party animals on the west coast are just heading home, I start each day not with a cup of freshly brewed hot java, but with a tall, blessed glass of creamy iced coffee in a glass. I’ve been an iced coffee freakazoid for years and years. To say I couldn’t live without it is an understatement. It gives me the tools I need to cope. Iced coffee is a complicated thing, and there are many different approaches. 1. Given the previous set of facts, one would assume that the logical solution would be to brew hot coffee, then transfer the brew to the fridge, allow it to cool, and use it to make iced coffee from there. There are reasons this method results in a smoother, richer, more delicious concentrate than simply brewing strong coffee and refrigerating it. (Note: I’ve totally adapted/tweaked coffee/water amounts to suit my own tastes. I start with a big ol’ container. Rip open a pound of ground coffee. Pour in the coffee. Hi, Julie!
Sacred Geometry 22 Killer Personal Development Resources You're Missing Out On You’ve got the personal development itch once again. You know the feeling. Maybe you want to be more productive, finally tackle that goal of yours, or start waking up earlier. So you go to Google or your favorite personal development blogs. And that’s it. Sometimes you find what you need, but you still have a sense that there’s got to be more. And that’s where you get stuck. Today I hope to change that by sharing with you 22 of the killer personal development resources you’re missing out on. 1. I know, you thought Reddit was just for gamers, atheists, and students – but that’s a misconception. 2. Mindbloom.com is a nifty personal development web application. 3. Lately, it seems there have been hundreds of eLearning websites popping up across the web. 4. There are plenty of ways to motivate you to work out, but the app Gympact does something quite clever and unique. Okay, so plenty of you know Ted already, but do you remember the first day you discovered it? 6. 7. 8. 9. 10. 11. 13. 14.
15 DIY crafts you need to make right now It's cold, it's raining and quite frankly, it's utterly miserable outside at the moment. So stay in! But then it hits you. You're young, so you haven't got all of that furniture and all of the little decorative trinkets that accumulate over time, and if you have, you haven't got nearly enough. Instead of spending your time sitting around moaning about the weather, why not spend your time doing something useful? Why not spend your time crafting some of these? Freshers Fields is back for 2013! 1. Source Stick your button collection around a balloon (and importantly) to each other. 2. Source Glue, buttons, cardboard and a bit of artistic ingenuity and you'll have yourself a great sign for your bedroom door (assuming you use the first letter of your first name). 3. Simply wash out a screw top spirit bottle, find a screw top soap dispenser and put it together. 4. Source Blank glass tumblers, paint, and cotton wool buds are all you need for this one. 5. 6. Source 7. 8. 9. Source 10. Source 11. Source
50 Life Secrets and Tips Memorize something everyday.Not only will this leave your brain sharp and your memory functioning, you will also have a huge library of quotes to bust out at any moment. Poetry, sayings and philosophies are your best options.Constantly try to reduce your attachment to possessions.Those who are heavy-set with material desires will have a lot of trouble when their things are taken away from them or lost. Possessions do end up owning you, not the other way around. Become a person of minimal needs and you will be much more content.Develop an endless curiosity about this world.Become an explorer and view the world as your jungle. Stop and observe all of the little things as completely unique events. Read “Zen and the Art of Happiness” by Chris Prentiss.This book will give you the knowledge and instruction to be happy at all times regardless of the circumstances.