Wolfram MathWorld: The Web's Most Extensive Mathematics Resource. What's Special About This Number? Vai avanti .com by rafaël rozendaal, 2006. Rader's NUMBERNUT.COM. Quantum Mechanics. Dual Tessellation. Triangle Dissection Paradox. The Tesseract. Weierstrass functions. Weierstrass functions are famous for being continuous everywhere, but differentiable "nowhere".
Here is an example of one: It is not hard to show that this series converges for all x. In fact, it is absolutely convergent. It is also an example of a fourier series, a very important and fun type of series. It can be shown that the function is continuous everywhere, yet is differentiable at no values of x. Equations - EquationSheet.com. NumberSpiral.com - Home. Touch Trigonometry. Vortex. Command-line interface. Command-line interfaces to computer operating systems are less widely used by casual computer users, who favor graphical user interfaces.
Command-line interfaces are often preferred by more advanced computer users, as they often provide a more concise and powerful means to control a program or operating system. Programs with command-line interfaces are generally easier to automate via scripting. Operating system command-line interfaces[edit] Operating system (OS) command line interfaces are usually distinct programs supplied with the operating system. Application command-line interfaces[edit] Application programs (as opposed to operating systems) may also have command line interfaces. An application program may support none, any, or all of these three major types of command line interface mechanisms: Parameters: Most operating systems support a means to pass additional information to a program when it is launched.
CLI software[edit] Hybrid software[edit] History[edit] Usage[edit] Mathematica Online Integrator. Free Online Computer Science and Programming Books, Textbooks, and Lecture Notes. Interactive Mathematics - Learn math while you play with it! PatrickJMT. Rubik cube solved in 20 movements or less. Simple Ideas That Are Borderline Genius Part 8.
The Mother of all Rube Goldberg Machines! Japanese Scientists Create Touchable Holograms // Current. To Our Faithful Current.com Users: Current's run has ended after eight exciting years on air and online.
The Current TV staff has appreciated your interest, support, participation and unflagging loyalty over the years. Your contributions helped make Current.com a vibrant place for discussing thousands of interesting stories, and your continued viewership motivated us to keep innovating and find new ways to reflect the voice of the people. We now welcome the on-air and digital presence of Al Jazeera America, a new news network committed to reporting on and investigating real stories affecting the lives of everyday Americans in every corner of the country. You can keep up with what's new on Al Jazeera America and see this new brand of journalism for yourself at Thank you for inspiring and challenging us. . – The Current TV Staff. Engineering ToolBox. Time Warp - Water Balloon to the Face.
Skill Set: The Beginning (Mechanical) Engineer’s Checklist. A while ago MAKE did a post on A Beginning Engineer’s Checklist from the PIClist site.
And while I love these kind of lists, it left me – as a mechanical engineering – feeling a little left out, with all the talk of chips and Ohm’s Law and power busses (oh my!). It also reminded me of a list we had posted on a bulletin board at my first job, called Akin’s Laws of Spacecraft Design, which definitely apply to more than just spacecraft. So here’s my attempt at rearranging and adding to these lists to give them more of a mechanical flavor and include some of my own lessons learned over the last few years. 1. NEVER loan out your copies of:Machinery’s HandbookShigley’s Mechanical Engineering DesignMaking Things Move: DIY Mechanisms for Inventors, Hobbyists, and Artists (okay this one is a shameless plug, but Dug North told me it’s “destined to be be a classic of sorts” so you can blame him) 2. 3. 4. 5. 6. 7. 8. 9.
PenTri_Wire_ani041.gif (GIF Image, 720x720 pixels) Dude, That’s One Hairy Surfboard. Posted by Anthony Mowl in EQUIPMENT, Uncategorized on 06-20-11 1 Comment I think I should start investing in companies that make accelerometers. They’re finding their way in just about anything that moves, even where you’d least expect it. Surfing is one of the purest sports you can find, just a surfer on a board feeling the waves beneath them. It used to be the only thing a surfer needed was a wet suit and bare feet. Now, surfers might have to bring an extension cord and a power outlet to to the beach so they can charge their surfboard. The dudes over at Pukas surf must have broken their boards on a nasty wave, because they tossed their old surfboard. The Surfsens project is initially being used to build better surfboards by measuring torque and flexibility and gauging surfers’ performances on different types of boards and seeing which settings work best.
Surfing used to be cool, tanned dudes taking a drop down the face of a wave and hanging 10. Like this post? Pyschology Tests & Surveys.