101 Signals: Want to Know Business? These Are the Only People You Need to Follow | Wired Business Business These are our favorite sources of news covering the world of business and finance. From macroeconomics to microlending, these folks are all money when it comes to delivering high-value information. If you’re drowning in noise, let WIRED’s 101 Signals be your lifeline. Download the OPML file to import our signals into your preferred news reader, or automatically add them to Digg Reader. If you want to see where technology is headed tomorrow, follow the collective pool of money that powers it today. Dave Birch is one of the few people tracking the global economy’s shift to digital payments in a way that’s neither DMV-dull nor Bitcoin-bananas. When Bernanke talks, the smart money listens to Bill McBride. Yeah, email is a nasty old fire hose of forwards, fallacies, and who the f@#! Along with his business partner Marc Andreessen, Ben Horowitz has been building megabucks companies since the ’90s. Illustration: Nishant Choksi
50 illusioni ottiche da capogiro Ecco una trafila di trucchi che ingannano il cervello al primo sguardo Pubblicato Eppur si muove Ovunque tu guardi, fermare l'immagine è davvero impossibile, nonostante sia in realtà statica (via Buzzfeed) Dischi rotanti, spirali che sprofondano nello schermo e pallini che ammiccano. Alcune manipolano il modo i cui il nostro cervello interpreta le immagini, altre sfruttano la fisiologia del nostro occhio e i meccanismi con cui queste vengono proiettate e permangono sulla retina. Ma le illusioni ottiche sono anche un intrigante intrattenimento, ed è proprio questo lo spirito con cui ve ne proponiamo una sfilza. On learning difficult things - Less Wrong - Autodidacting process I have been autodidacting quite a bit lately. You may have seen my reviews of books on the MIRI course list. I've been going for about ten weeks now. Much of this may seem obvious, and would have seemed obvious if somebody had told me in advance. Part of the reason I'm posting this is because I don't know a lot of autodidacts, and I'm not sure how normal any of my experiences are. Pair up When I began my quest for more knowledge, I figured that in this modern era, a well-written textbook and an account on math.stackexchange would be enough to get me through anything. But not really. The problem is, most of the time that I get stuck, I get stuck on something incredibly stupid. "Dude. These are the things that eat my days. In principle, places like stackexchange can get me unstuck, but they're an awkward tool for the job. That's why my number one piece of advice for other people attempting to learn on their own is do it with a friend. I still haven't managed to follow my own advice here.
Dot Physics - Wired Science THE ULTIMATE CHEAT SHEET FOR REINVENTING YOURSELF Altucher Confidential Posted by James Altucher Here are the rules: I’ve been at zero a few times, come back a few times, and done it over and over. I’ve started entire new careers. I’ve had to change careers several times. There are other ways to reinvent yourself, so take what I say with a grain of salt. I’ve seen it work for maybe a few hundred other people. A) Reinvention never stops. Every day you reinvent yourself. B) You start from scratch. Every label you claim you have from before is just vanity. C) You need a mentor. Else, you’ll sink to the bottom. D) Three types of mentors Direct. E) Don’t worry if you don’t have passion for anything. You have passion for your health. F) Time it takes to reinvent yourself: five years. Here’s a description of the five years: Year One: you’re flailing and reading everything and just starting to DO.Year Two: you know who you need to talk to and network with. Sometimes I get frustrated in years 1-4. G) If you do this faster or slower then you are doing something wrong. Today.
Top Weekend Reads: Tips From the Busiest People in the World Designed by Dmitry Baranovskiy for the Noun Project The creative routines of famous creatives has been popular internet fodder this year. The Pacific Standard thinks this obsession and trend of emulating famous artist’s habits is problematic, to say the least. The larger picture, says Casey N. The idea that any one of these habits can be isolated from the entirety of the writer’s life and made into a template for the rest of us is nonsense. We often talk about process at 99U, so we think this is a great debate. Read the rest of the article here. Chapter 2 - Principles of Magnetic Resonance Imaging 2.4 Image Contrast in Biological Imaging Unlike many other medical imaging modalities, the contrast in an MR image is strongly dependent upon the way the image is acquired. By adding r.f. or gradient pulses, and by careful choice of timings, it is possible to highlight different components in the object being imaged. In the sequence descriptions that follow it is assumed that the imaging method used is EPI, however identical or similar methods can be used with the other MR imaging techniques outlined above. The basis of contrast is the spin density throughout the object. If there are no spins present in a region it is not possible to get an NMR signal at all. Table 2.2 Water content of various human tissues When describing the effect of the two relaxation times on image contrast, it is important to distinguish between relaxation time maps, and relaxation time weighted images. 2.4.1 T1 Contrast Figure 2.20. Figure 2.21. (a) (b) Figure 2.22. 2.4.2 T2* Contrast Figure 2.23 T2* weighted imaging.
Italian Explore. Watch, listen, debate & discover with our experts Free OpenLearn courses. The 27 Principles To Teaching Yourself Anything “I have never let my schooling interfere with my education.” —Mark Twain Note: This post is intentionally long. It’s meant to be our compass for learning the skills that matter in the world and throwing theory out the window. At the end of this post I’ve even provided two free PDF downloads to further guide you towards learning what matters (one is a list of over 30 of the best online resources for creating your own passion-filled curriculum). Enter the Unofficial Self-Guided Education Manifesto… Last week’s article on The Birth of Self-Guided Education caught like wildfire. When that happens, I know a topic deserves some respect. Many of last week’s comments blew my mind. Living Legends create their own education. The truth of the matter is every Living Legend (whether they dropped out of high school or got a couple PhD’s) took their education and their learning into their own hands. So without further ado… 1. 2. 3. 4. 5. 6. “90% of my education was outside of the classroom.” 7. 8. 9. 10.
Learn On Your Own: Independent Scholar Resource Plan One of the most challenging and gratifying parts of learning alone is the opportunity to search for and select your own learning material. Students in traditional classrooms usually don’t get to decide how they are going to master course content. Instructors decide for them in the form of textbook selection, quizzes, tests, group projects, etc. As an independent learner, you can make your study time more effective by using only the learning methods that work for you. A resource plan is a document used to brainstorm the learning material you can use when you begin your studies. Before you write a step-by-step schedule, think of every resource that is available to you (such as books, websites, knowledgeable people, etc). This article will show you how to create a resource plan to use in your independent studies. Step 1: Set a Goal The first step to creating a resource plan is to decide on a single goal. Step 2: Collect Materials Step 3: Make Connections Step 4: Take Action
5 Steps to Reinvent Yourself “You’re never too old to set another goal or dream a new dream.” ~C. S. Lewis Change means reinvention. I’ve reinvented myself several times in my life. But what I always forget is that we have to choose reinvention. When I’ve waited for my future to find me, I’ve waited in vain, lost in confusion and sadness, or I’ve gotten tangled up in a situation I didn’t want. One morning, after struggling for months with grief and loss, I woke up and realized that I was having so much trouble moving forward partly because I had no idea what it was that I wanted to move toward. That morning, I woke with a vision: a crowd of people from the life I needed to leave behind with the sun rising opposite them and me standing between the two, the sun beating down on my face. In the vision, I decided, finally, to turn from the group and walk toward the sun, my new life. That vision told me what I needed to hear—that I had to take control of my future instead of letting my pain choose for me. 1. 2. 3. 4. 5.