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Many of you may have already seen an impressive real-time destruction and fluid simulation demo from GDC 2013 . We won’t talk about fracturing technology today, instead, let’s focus on the new fluid simulation algorithm, presented in the demo – it is known as Position Based Fluids . Position Based Fluids is a way of simulating liquids using Position Based Dynamics (PBD), the same framework that is utilized for cloth and deformables simulation in PhysX SDK . Because PBD uses an iterative solver, it can maintain incompressibility more efficiently than traditional SPH fluid solvers. It also has an artificial pressure term which improves particle distribution and creates nice surface tension-like effects (note the filaments in the splashes). Finally, vorticity confinement is used to allow the user to inject energy back to the fluid.
LEET (1337) is a written language or cipher used in online gaming, e-mails, text messaging, tweeting, and other electronic communication. The root of the term "leet" is the word "elite"--translated as 31337--and 1337 was initially developed as an exclusionary language: a way to encode text so that messages could only be read by the initiated. The defining characteristic of 1337 is substitution of symbols and numbers for letters (for example, in the term "1337," 1=L, 3=E and 7=T), but the language has also developed to include intentional misspellings, phonetic spelling, and new words. If you want to familiarize yourself with 1337, or if you're just curious about it, this article will explain the basics of how to read and write in this everchanging language. The license plate on the car says H4X0RZ, or Hackers. <p style="text-align:right;color:#A8A8A8"></p>
Ruslan Kogan may not be a known entity in the U.S., but the Aussie entrepreneur is a pioneer of online retail in Australia and happens to be the country’s wealthiest self-made person under the age of 30. Oh, and he also founded Kogan.com , a a manufacturer and direct retailer of consumer electronics that’s projected to hit over $100 million in sales this year. But, more importantly, the guy likes to be controversial and, when things suck, he’s not afraid to say so. Which is why Kogan announced via his blog today that his company is implementing what he believes to be “the world’s first ‘Internet Explorer 7 Tax.’” It may sound like a joke, but Kogan is totally serious.
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Tom's Hardware and Que Publishing are partnering up to give you four chapters from Scott Mueller's Upgrading And Repairing PCs, 20th Edition . We're also giving away copies of the book to 10 lucky Tom's Hardware readers. To enter, please fill out the contest form . The first chapter we're making available is from the beginning of Scott's book, covering the development of the PC. From the humble beginnings of mechanical adding machines to today's multi-core processors, we recount the events and innovations that took us where we are today and wrap it up with a convenient timetable showing the complete history of the PC! In the days to come, we'll also present comprehensive looks at Magnetic Storage Principles, Local Area Networking, and Power Supplies.
Looking at the number of information bits that go into the makeup of a screen only gives a partial picture of how much processing is involved. To get some inkling of the total processing load, we have to talk about a mathematical process called a transform . Transforms are used whenever we change the way we look at something. A picture of a car that moves toward us, for example, uses transforms to make the car appear larger as it moves.
Illustration Christoph Niemann Writers/Editors Min Li Chan, Fritz Holznagel, Michael Krantz Project Curator Min Li Chan & The Google Chrome Team Design Fi Paul Truong Development Fi Very Special Thanks To
The term ‘geek’, once used to label a circus freak, has morphed in meaning over the years. What was once an unusual profession transferred into a word indicating social awkwardness. As time has gone on, the word has yet again morphed to indicate a new type of individual: someone who is obsessive over one (or more) particular subjects, whether it be science, photography, electronics, computers, media, or any other field. A geek is one who isn’t satisfied knowing only the surface facts, but instead has a visceral desire to learn everything possible about a particular subject. A techie geek is usually one who knows a little about everything, and is thus the person family and friends turn to whenever they have a question. If you’re that type of person and are looking for a few extra skills to pick up, or if you’re a newbie aiming to get a handhold on the honor that is geekhood, read on to find out what skills you need to know.
BIOS Error - How to Troubleshoot a Computer That Turns On But Stops Booting During the POST - POST ErrorSometimes your computer may actually turn on but an error message during the POST will stop the boot process . Other times your PC may simply freeze during the POST with no error at all. There are a number of BIOS error messages that can display on your monitor and several reasons why a PC might freeze during the POST so it's important that you step through a logical process like the one I've created below. Important: If your PC is in fact booting through the POST, or is not reaching the POST at all, see my How to Troubleshoot a Computer That Won't Turn On guide for more applicable troubleshooting information.
Tom's Hardware and Que Publishing are partnering up to give you four chapters from Scott Mueller's Upgrading And Repairing PCs, 20th Edition . We're also giving away copies of the book to 10 lucky Tom's Hardware readers. To enter, please fill out the contest form , and remember that you can only enter once (if you entered when we published Computer History 101 or Hard Drives 101: Magnetic Storage, we already have your entry). This third chapter we're making available from Scott's book covers the basics of a Local Area Network (or LAN). Don't forget to check out the previous chapters published on Tom's Hardware, Computer History 101: The Development Of The PC and Hard Drives 101: Magnetic Storage . In the days to come, we'll also present comprehensive looks at LAN Hardware and Assembly, and Power Supplies.
Tom's Hardware and Que Publishing are partnering up to give you four chapters from Scott Mueller's Upgrading And Repairing PCs, 20th Edition . This forth installment is a continuation of the third chapter we're making available from Scott's book, which covers Local Area Network (LAN) hardware and assembly. Don't forget to check out the previous chapters published on Tom's Hardware, Computer History 101: The Development Of The PC , Hard Drives 101: Magnetic Storage and LAN 101: Networking Basics . In the days to come, we'll also present a comprehensive look at Power Supplies. The choice of a data-link protocol affects the network hardware you choose. Because the various flavors of Ethernet and other data-link protocols use different hardware, you must select the architecture before you can select appropriate hardware, including NICs, cables, and switches.
Dear Lifehacker, I love technology, but in my attempts to keep up to date I feel like I'm in a constant struggle with my home. I've got bad Wi-Fi reception, limited outlets, and despite all of this my power bill is through the roof. How can I make my home more 21st-century tech-friendly? Sincerely, Living in Obsolescence
(Credit: Sharon Vaknin/CNET) Spring has sprung, and while your neglected garage might be beckoning, the tech you use in your daily life could also use a little cleaning love. Over the last week, our How To superheroes put together spring cleaning guides for all the tech in your life.