Saccade Trace of saccades of the human eye on a face while scanning Function[edit] Humans and many animals do not look at a scene in fixed steadiness (as opposed to most birds, for example[citation needed]); instead, the eyes move around, locating interesting parts of the scene and building up a mental, three-dimensional 'map' corresponding to the scene (as opposed to the graphical map of avians, that often relies upon detection of angular movement on the retina). When scanning the scene in front of you or reading these words right now, your eyes make jerky saccadic movements and stop several times, moving very quickly between each stop. Control[edit] Once saccades are underway, they cannot be altered at will. Timing and kinematics[edit] Saccades are the fastest movements produced by the human body. The amplitude of a saccade is the angular distance the eye travels during the movement. Types[edit] Saccades can be categorized by intended goal in four ways:[10] Pathophysiologic saccades[edit]
Coding Horror: Cultivate Teams, Not Ideas How much is a good idea worth? According to Derek Sivers, not much: It's so funny when I hear people being so protective of ideas. (People who want me to sign an NDA to tell me the simplest idea.) To me, ideas are worth nothing unless executed. I was reminded of Mr. I feel that this story is important to tell you because Kickstarter.com copied us. The disconnect between idea and execution here is so vast it's hard to understand why the author himself can't see it. I wouldn't call ideas worthless, per se, but it's clear that ideas alone are a hollow sort of currency. The criticism that all you need is "super-connected people" to be successful was also leveled at Stack Overflow. I very much enjoyed the Hacker News conversation about cloning the site in a weekend. I don't care how internet famous you are; nobody gets a pass on execution. One of my all time favorite software quotes is from Wil Shipley: This is all your app is: a collection of tiny details. Execution isn't merely a multiplier.
Shepherd's Pie (Cottage Pie) When the English, who seem to have a national fascination with minced meat pies, combined mashed potatoes with minced meat, a truly remarkable dish was born. For over two hundred years, Shepherd's Pie has been made by cooking chopped up lamb or mutton mixed with gravy, topped with mashed potatoes, and baked until a crispy crust forms. When made with beef, this dish is traditionally called Cottage Pie. This recipe, handed down to me by a friend in the form of index cards, was originally from the beloved Joy of Cooking. Start by chopping up 1-1/2 lb. potatoes into rough 1-inch cubes for boiling. While, cooking the potatoes, prepare the vegetables. Dice the carrot, celery, and onion and place in a bowl. When the potatoes are tender, remove them from the water into a large bowl, reserving 1/2 cup of the water. After the potatoes have been mashed, set them aside. Add the diced onion, carrot, and celery and stir until the vegetables are coated. Add 1 Tbs. flour to the mixture. Shepherd's pie
5 Great Resources To Learn How To Code However, more often than not, there seems to be a problem of actually finding good content online that can teach you to code. Experimenting with a language can only get you so far. To master it, you need to have proper guidance from people who actually know what they are talking about. So where can you find expert guidance without shelling out a fortune for it? Dream In Code Just taking a look at their logo ought to tell you that the community at Dream In Code isn’t something to mess around with. They have everything. They also have a video channel and links to developers’ blogs if you want to look deeper. W3Schools If what you want to master is a Web technology, you’ve got to give W3Schools a look. You can get tutorials ranging from plain-Jane HTML, right up to AJAX and the likes. Eloquent JavaScript If you’ve ever had to use a Greasemonkey Script or a Bookmarklet, you have a clue about the kind of power that JavaScript possesses. TryRuby A Miscellany of HTML5 Tutorials
Spacing effect Researchers have offered several possible explanations of the spacing effect, and much research has been conducted that supports its impact on recall. In spite of these findings, the robustness of this phenomenon and its resistance to experimental manipulation have made empirical testing of its parameters difficult. Causes for spacing effect[edit] Decades of research on memory and recall have produced many different theories and findings on the spacing effect. In a study conducted by Cepeda et al. (2006) participants who used spaced practice on memory tasks outperformed those using massed practice in 259 out of 271 cases. As different studies support different aspects of this effect, some now believe that an appropriate account should be multifactorial, and at present, different mechanisms are invoked to account for the spacing effect in free recall and in explicit cued-memory tasks. Not much attention has been given to the study of the spacing effect in long-term retention tests.
A Very Quick Comparison of Popular Languages for Teaching Computer Programming This article has been translated into Serbo-Croatian here: Thanks to Jovana Milutinovich for creating this translation. In the CS department where I currently teach I recently got involved in a debate on which programming language should be used to teach beginners. Java and C are the most commonly used languages in the department, and for many subjects this is appropriate, but not (I believe) for absolute beginners. I believe Python is a much better choice for beginners, and to firm up my own position I performed the very brief, very unscientific test described below. The Test I wanted to look at what was involved in writing very simple programs in a (small) variety of languages. "Hello World" seemed a bit too trivial, so I decided on the relatively simple task of reading two numbers from the user, adding them together and printing out the result. Time to write: 15 seconds. Things to explain: Line numbers Variables INPUT PRINT RUN Java
Welcome to the Mnemosyne Project | The Mnemosyne Project Ruby Koans Online Brooklyn Boulders Deal of the Day | Groupon New York City Everything looks delicious these days, but only some things are actually safe to put in your mouth. Here's a guide to things that look good enough to eat: Marbles: SafeReason: Rubbing marbles against your teeth will wear them down to rounded nubs that feel much better against the tongue. Sponge: Not SafeReason: You'll put a nice, dry sponge in there, and when it comes out it's going to be full of saliva and completely unsanitary to wash dishes with. Laundry-Detergent Pods: Not SafeReason: This yummy candy burns the mouth. Universal Remote: SafeReason: Thousands of uniquely flavored buttons will make your taste buds feel like they’re at the greatest circus of their lives. Bread: Not SafeReason: The worst hazard of them all—there is no way to breathe through bread.
Python vs Ruby Python and Ruby are two of the most popular dynamic programming languages used in high level application development. Developers often prototype using these two languages before implementing on compiled languages because of their modularity and object oriented features. Many use Python or Ruby instead of Perl as simple scripting languages. Python and Ruby are popular among web developers as well because of their rapid development cycle, with Python boasting computation efficiencies and Ruby boasting code design benefits. The latest stable version of Ruby is 2.1.0 released on 25 Dec 2013. [edit] Philosophy Python has been designed to emphasize programmer productivity and code readability. Ruby was designed, first and foremost, to make programming fun for its creator, with The Principle of Least Surprise and There's more than one way to do the same thing as guiding concepts: Ruby inherited the Perl philosophy of having more than one way to do the same thing. [edit] Functional Programming
Access2Drive Driving School Deal of the Day | Groupon New York City Inspiration is everywhere, if you know where to look. What are some sure-fire ways to shatter writer's block and unleash the creative torrents within? Observe natural phenomena, such as a rainbow or a sheep slipping in some mud.Write down everything that happens in your favorite movie, but make it about … yourself?