![]() When such light is passed through a polaroid, half the light gets through. In fact “natural” light from light bulbs and the sun is “unpolarized,” which comes about because each of the individual light sources (atoms) are aligned in random orientations, and all send out random, unaligned light waves. The second oversimplification is that not all of the individual light waves that come from a source are necessarily polarized in the same direction. What happens then? Well, electric fields are vector fields, which means they can be broken into components, so the component of the electric field that is parallel to the polarizing axis gets through, and the other component is absorbed. First of all, a light wave does not have to arrive at the polarizer in either a parallel or perpendicular orientation – it could be aligned at any angle with the polarizing axis. We have overly-simplified things here, in a couple of ways. But today we like our movies to be in realistic colors, so someone came up with the idea of projecting the two images with differently-polarized light, and then give viewers glasses that only admit the properly-polarized light into the respective eyes. ![]() The original inventor did this with colors – red lenses obscure red images, and yellow lenses obscure yellow light, so films were recorded from two perspectives, and each perspective was projected in a different color – one red and one yellow. Then the trick is to make the right-perspective image invisible to the left eye and the left-perspective image invisible to the right eye, so that each eye sees only its own perspective. One image is recorded from the perspective of the right eye, and the other from the perspective of the left eye. This inventor’s idea was to project not one but two images on the same screen. Your finger’s position appears to change relative to the background. You can see this is true by holding up your finger in a fixed position and alternately opening-and-closing each eye. Your right eye sees objects from one perspective, while your left eye sees it from a slightly different perspective. The idea is based on the fact that a large component (but not the only one) of seeing in 3-D is stereo vision. Long ago someone came up with a brilliant idea for making movies projected onto a 2-D screen appear in 3-D. One interesting application of this phenomenon is 3-D movies. Such a filter is called a polaroid or polarizer. the substance is transparent to this light), while if the light is polarized perpendicular to the polarizing axis, then virtually all of the light is absorbed. When the light polarization is aligned with what we define as the polarizing axis of the substance, then little of the light is absorbed by the substance (i.e. If the light is plane-polarized (see Figure 3.1.1), then its propagation through a medium will be affected by the preferential orientation of charge oscillations. This material can have a dramatic effect on light passing through it. The upshot of this is that the charges react to electric fields along one direction (or rather, components of electric fields along one direction), while they don't react along a perpendicular direction. ![]() It so happens that it is possible to construct a solid substance which greatly restricts oscillatory motion of electric charges along a single dimension. There is little we can say about it in this class, except to say that because the light wave is electromagnetic in nature, it interacts with electric charge, which is present in all matter. \)Īs stated previously when discussing the speed of light waves through transparent media, the mechanisms that govern light propagation through media are complicated.
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You’ll develop footwork and strikes, improve your fitness level, and if you really enjoy it, work your way up to training to compete on the Red Line Boxing Team.Ħ14 Massachusetts Ave., Cambridge, 61, .861 4th Ave., 2nd Floor Brooklyn, NY 11232 Contact: Greg Ardon Email: Phone: 71Ħ67 East 34th Street Brooklyn, NY 11203 Contact: Pat Russo Email: BOXINGġ601 Gravesend Neck Road Brooklyn, New York 11223 Contact: Akmolijan Zakirou Email: Phone: (718) 810-6555ġ30 Water St. Their boxing programs are broken down into three levels: beginner, intermediate to advanced, and boxing for competition. ![]() They offer boxing, kickboxing, fighter fitness, Brazilian Jiu-Jitsu, and Mixed Martial Arts classes. What started as an exclusive Chinese Kickboxing club has grown exponentially into a full-fledged boxing family, accepting newbies and competitive fighters alike. Take a private lesson, or try out self-defense, shadowboxing, or sparring.ĩ71 Commonwealth Ave., Boston, 61,. off the Pleasant Street Green Line stop, it offers a free trial for new members and has more than 60 classes available each week. Whether you’re looking to learn the technique of a real fighter or gain functional strength and stamina before you hop in the ring, this gym is your spot. Kickboxing classes incorporate kicking and punching for a dynamic experience and their newest workout, which focuses on MMA-style fighting, involves bag work blended with boxing and kickboxing for an added challenge. Take a high-intensity boxing class, learn kickboxing, or try a Mixed Martial Arts (MMA) class at one of Title’s three locations around the Hub. ![]() When he isn't working on a computer or DIY project, he is most likely to be found camping, backpacking, or canoeing. He has designed crossovers for homemade speakers all the way from the basic design to the PCB. He regularly repairs and repurposes old computers and hardware for whatever new project is at hand. He enjoys DIY projects, especially if they involve technology. He also uses Proxmox to self-host a variety of services, including a Jellyfin Media Server, an Airsonic music server, a handful of game servers, NextCloud, and two Windows virtual machines. He has been running video game servers from home for more than 10 years using Windows, Ubuntu, or Raspberry Pi OS. Nick's love of tinkering with computers extends beyond work. In this way, users can create script programs with the PowerShell scripting language. For example, automations can be created better with PowerShell. In addition, however, there’s also the PowerShell: This offers more options than CMD.EXE. In college, Nick made extensive use of Fortran while pursuing a physics degree. The default command line interpreter for Windows is called CMD.EXE. Dans notre liste exhaustive, nous expliquons ce que font les différentes commandes et sous quelle version de Windows elles peuvent être exécutées. ![]() Before How-To Geek, he used Python and C++ as a freelance programmer. He has been using computers for 20 years - tinkering with everything from the UI to the Windows registry to device firmware. Open a command prompt with admin privileges. Nick Lewis is a staff writer for How-To Geek. This is useful if you wish to get a list of updates via a batch file. Selecting a region changes the language and/or content on. To get all the benefits of Photoshop, it's important to learn about its other tools and program features. Remember, brushes are just one aspect of Photoshop.
Essentially, the app is designed to give you complete freedom to experiment with how all your thoughts and ideas fit together, allowing you to plan and plot without any restrictions. You don’t even have to make connections between each and every item if you don’t want to, meaning you can flesh out more than one argument or idea alongside another - again, just like you would do on paper. ![]() Notes can go anywhere on the page and you can stack them into columns of related items, or group them using background shapes. You can also import text files, PDFs and images as part of your plan. This is important as it means you’re not forced to start with a central thought and then build everything around that Scapple’s much more flexible. At its heart it’s pretty simple, but it fulfils an important task.Īlthough the app generally fits the description of being a mind mapping tool, unlike traditional mind-mapping apps, in Scapple every note is equal. It’s an app that replicates the process of making notes on a sheet of paper then seeing how it’s possible to create a flow between them using lines or arrows - except that in Scapple’s case the sheet of paper is infinite and you can revise your connections endlessly. Scapple is essentially a tool for jotting ideas down, then making connections between them. Hi Anne-Laure – thank you, too! It’s great to have the opportunity to tell your readers about our app. How would you describe it to someone who has never heard of it? After all these years, Scapple is still a one-of-a-kind tool for better thinking and creativity. Hi Julia, thank you so much for agreeing to this interview. In this interview, we talked about how to build an infinite canvas for your thoughts, the impact of mind mapping on creative thinking, how to effectively connect ideas together, the power of simplicity when designing tools for thought, the benefits of working in a distraction-free environment, and more. She recently gained an MBA from Manchester University’s Alliance Manchester Business School. She is a director of the company, with responsibility for strategic development and public relations. ![]() ![]() Julia is a former journalist who joined Literature & Latte, Scapple’s publisher, shortly after the company launched in 2007. If you have ever scribbled ideas onto a piece of paper and drawn lines between related thoughts, then you will have no problem understanding how Scapple works. Welcome to this edition of our featured tools for thought series! In this interview with Julia Pierce, we explore a hugely popular tool: Scapple, a virtual sheet of paper that lets you make notes anywhere on the page and connect them using lines and arrows. ![]() Toy Story 3 surprised audiences and critics with a teenage Andy heading to college, leaving his toys with an uncertain future as they are donated to Sunnyside Daycare, where they meet new toys and adjust to life without their owner. Image via Walt Disney Studios Motion Pictures With improved technology allowing for better, more detailed animation and a cast of exciting new characters to add to the already rich Toy Story world, this was one of the rare instances where a sequel was able to live up to the massive hype of its predecessor and bring back the same magic that made the first one a classic for all ages. How many sequels can claim this achievement? Not many. Thankfully, that was not the case for Toy Story 2, as it was met with similar critical acclaim to the first movie, with reviewers claiming it equaled the original in quality, some even going as far as saying it surpassed it, and receiving the same perfect score on Rotten Tomatoes. So, one wasn't at fault for thinking, at the time, that Toy Story 2 wouldn't match up to the enormous success of the original. Normally, sequels that have to live up to the massive hype of their predecessors are a tall order that is rarely successful. Andy's toys can make it back home with new friends, ready for their next adventure. Here is where viewers meet the excitable and energetic cowgirl Jessie voiced by Joan Cusack, who imbued the franchise with a breath of new energy and had tears flowing with the heartbreaking song "When She Loved Me." Other memorable characters introduced were Prospector Stinky Pete and Emperor Zurg, whose villainous plans are unsuccessful. In the second installment, Toy Story 2, the beloved toy gang has a brand-new adventure after a rescue gone wrong sees Woody stolen by a toy collector to ship him to a museum in Japan. ![]() With its technical achievements, lovable characters, heartwarming story, and creative world-building, this movie was positioned as one of the best-animated films of all time, and it largely succeeded in its mission, and so much more. Animation by computers wasn't entirely new pre-1995, but Toy Story opened the door to a new wave of possibilities when it came to animation, showing off the enormous potential computer animation had as a medium for storytelling beyond what it could do for special effects. ![]() Before Toy Story was released, animated films followed the "Disney Template", largely composed of hand-drawn, 2-D animation to make characters come to life. This movie was not only a massive hit, but was also groundbreaking, becoming the first animated feature film to be entirely computer-animated, ushering in a new age of animation for Pixar and plenty of other studios that soon followed in their footsteps. Not only was Toy Story a massive success, spawning the iconic franchise fans know and love today, making every kid who watched the film want a Woody doll for themselves, receiving three Academy Award nominations and even a Special Achievement award for being the first of its kind. This is where audiences first meet the pull-string doll Woody who has to teach Space Ranger Buzz Lightyear what it means to be a toy as they go on an adventure that includes tiny three-eyed aliens, a pizza-delivering van, and an explosive rocket to get back home to their kid Andy. Image via Buena Vista Pictures Distribution Whatever tale the Pixar team has in store for the upcoming sequel, the past installments have all been solid regarding their story, character development, and animation, garnering plenty of acclaim from critics and audiences alike, making this franchise one of the studio's best. In more than 20 years since the first movie's release, the franchise's legacy has continued to grow thanks to its sequels and related media, such as the Lightyear spinoff and the nostalgic Buzz Lightyear of Star Command series. While plot details surrounding the movie are still a mystery, one thing for certain is that it will surely bring a fun, fresh new story in plastic for the whole family with the same level of quality animation that Pixar has always delivered. Disney CEO Bob Iger recently announced that a fifth installment of the incredibly successful Toy Story franchise is officially in the works, and should be reaching movie screens by 2028. While new characters have been introduced over its (current) four-movie run, the main plot of the story centers around a toy cowboy, Woody ( Tom Hanks), and a toy astronaut, Buzz Lightyear ( Tim Allen), and their various adventures, which will continue as the beloved toys are coming back to screens for a brand new adventure. ![]() See Donations for how to obtain a Donor Password. Releases Links and release status Website Releases It is kept current and secure with frequent updates from X.Org, XCB, XKB, FreeType, PThreads4W, Mesa, PuTTY and xorg group issues in freedesktop gitlab. ![]() Xming is cross-compiled on Linux for Microsoft Windows, using MinGW-w64, mostly from canonical X.Org source code with my patches applied. ![]() PuTTY is Project Xming's preferred and integrated X terminal emulator for Microsoft Windows: superseding any requirement for a cumbersome POSIX API compatibility layer and simulated directory mount points. High performance Windows AIGLX is available for graphics cards that support hardware-accelerated OpenGL. Mesa with GLX, or Microsoft WGL, provide interactive OpenGL® 2D and 3D network transparent graphics rendering. Xming installers include executable code, and libraries, only built by me, Colin Harrison (Project Xming's chief developer) + this website is free of adverts, pop-ups and usage tracking of any kind, including cookies, and is hosted on machines only administered by me. Xming is totally secure when used with SSH and optionally includes an enhanced Plink SSH client and a portable PuTTY replacement package. It is fully featured, lean, fast, simple to install and because it is standalone native Windows, easily made portable (not needing a machine-specific installation or access to the Windows registry). Xming is the leading X Window System Server for Microsoft Windows®. The Premium Deluxe Edition includes everything from the Microsoft Flight Simulator Deluxe edition plus 5 additional highly accurate planes with unique flight models and 5 additional handcrafted international airports. Adolfo Suárez Madrid–Barajas Airport (Spain). ![]() Cape Town International Airport (South Africa).Amsterdam Airport Schiphol (Netherlands).Microsoft Flight Simulator X Steam Edition has updated multiplayer and Windows 8.1 support. Take off from anywhere in the world, flying some of the world’s most iconic aircraft to any one of 24,000 destinations. The Deluxe Edition includes everything from Microsoft Flight Simulator plus 5 additional highly accurate planes with unique flight models and 5 additional handcrafted international airports. The multi award winning Microsoft Flight Simulator X download lands on Steam for the first time. Ē0 classic missions from the franchise’s past.In summary, the 40th Anniversary Edition will introduce: It is an exciting update full of aviation history to celebrate our community and the beauty of aviation! The sky is calling! Take the controls of aircraft such as the 747 jumbo jet, F/A-18. We are also adding four classic airports, including Meigs Field in Chicago, a traditional starting airport for the Microsoft Flight Simulator franchise. Microsoft Flight Simulator X Steam Edition has updated multiplayer and Windows 8.1 support. Louis, the 1935 Douglas DC-3, the beautiful 1937 Grumman G-21 Goose, the 1947 Havilland DHC-2 Beaver, and the famous 1947 Hughes H-4 Hercules (the largest seaplane and largest wooden plane ever made), also known as the Spruce Goose. These aircraft include the 1903 Wright Flyer, the 1915 Curtiss JN-4 Jenny, the 1927 Ryan NYP Spirit of St. ![]() In addition to the helicopters and gliders, we will introduce another highly requested community feature: a true-to-life airliner, the sophisticated Airbus A-310, where nearly every single button works just as expected.Ĭelebrate the storied history of aviation with seven famous historical aircraft in the Microsoft Flight Simulator 40th Anniversary Edition. ![]() The Microsoft Flight Simulator 40th Anniversary Edition will feature, for the first time since 2006, helicopters and gliders, the most requested enhancements by our community. ![]() I ask all these questions, as I believe the problem may be related to these debug memory parameters, and not the electrical, connection or power issues. Is there a reset option, or perhaps it does not apply to JTAG programming? I of course have the NodeMCU setting in VisualMicro, but I cannot find a similar setting in VisualGDB. There are apparently 2 reset options: “ct” and “nodemcu”.While on the topic of memory settings – what do the -C1 and -C2 suffixes mean?.What value should I use in VisualGDB? I’ve tried them all. Are the units bits or bytes? The default list all have little “m”s – so is that bits? For VisualMicro I have a setting of 4m (1M SPIFFS) when I program via the UART. There’s a size option in the debug section.How can I confirm the DIO mode is being used once changed in Debug config? (and does this matter to JTAG?) In the Debug Settings: Is “Frequency” the CPU or Flash frequency? For VisualMicro I use 80MHz for CPU and 40MHZ for Flash Frequency.I’ve kept the default of 4096 in all my attempts. In the Debug settings: Is the Sector Size and Erase Block size ever a function of ESP8266 flavor? I’ve use the Arduino / VisualMicro uploaders and have not seen that option.If manually loading these files via something like the NodeMCI Firmeware Programmer, what’s the load address of the largest file? What is the purpose of each of them? Are they actually all supposed to be loaded into the ESP8266? Project-0x20000.binI assume the numbers are meant to be firmware addressed, but the two with numbers are relatively small, and the largest file (project.bin) has no number. There are 3 binary files created in the \VisualGDB\Debug directory:.I have a variety of questions, that perhaps would be good to add to a new “ESP8266” section at (?) □ It is the JTAG issue I’m struggling with. I can definitely program the NodeMCU units via VisualMicro / UART with no problems. I’ve even tried powering the NodeMCU separately with 3.3V, ignoring the on-board UART, leaving it powered off: same results. But I’ve tried two different NodeMCU’s with no success. If I had not had success with the Olimex ESP8266-EVB, I may have given up. ![]() I’m thinking that despite the message “The device has been programmed successfully”, it has not – particularly given the exception “cause:2”. This is the default speed for error messages if not set by target application. Syst?param error, use last saved param!ītw – Feature request: please add the default “74880” speed to dropdown. When running, the program uploaded repeatedly spews reboot because of exception messages:Įts Jan 8 2013,rst cause:2, boot mode:(3,6) ~”Restoring binary file C:/workspace/OMC/VisualGDB/Debug/OMC-0x10000.bin into memory (0x3ffe8008 to 0x3fff75ac)\n” Curiously the raw GDB only mentions one binary file: It does however, seem to go through all the motions and after a brief period claims to have successfully programmed the device. Watchdog feeding during stops is now enabled Interrupt suppression during single-stepping is now enabled Have halted some time after resetting (not Warn : xtensa_deassert_reset: ‘reset halt’ is not supported for Xtensa. Warn : Bypassing JTAG setup events due to errors Info : accepting ‘gdb’ connection on tcp/3333Įrror: JTAG scan chain interrogation failed: all zeroesĮrror: Check JTAG interface, timings, target power, etc.Įrror: Trying to use configured scan chain anyway…Įrror: esp8266.cpu: IR capture error saw 0x00 not 0x01 ![]() However when actually programming, I get the dreaded “all zeros” JTAG message: Info : accepting ‘telnet’ connection on tcp/4444 Info : TAP esp8266.cpu does not have IDCODE Trst_and_srst separate srst_gates_jtag trst_push_pull srst_open_drain connect_deassert_srstĮrror: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED When testing the settings, all appears well (in this case with the Olimex ARM-USB-OCD-H_:Ĭ:\SysGCC\esp8266\esp8266-bsp\OpenOCD\bin\openocd.exe -f interface/ftdi/olimex-arm-usb-ocd-h.cfg -f target/esp8266.cfg With that success, I hoped to be able to program the NodeMCU. I’ve had success with the Olimex as described in the sysprogs tutorial, targeting the Olimex ESP8266-EVB. I’m trying to get my JTAG programmer (either an Olimex ARM-USB-OCD-H or Segger J-Link EDU) to program, and ideally step debug the ESP8266. |
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