Vivaldi Community

In short these days proved that writing a blog while being on-site for a volunteering task is actually almost impossible. We never had to be warned twice to get to the bed at the end of the day. I've made the mistake of not taking notes so now I have to rely on my memories to share the experience. We started a little bit slow as our project dive instructors were also away for training. Basically, we spent time on 3 different things during these days: 1. doing diving courses at different levels. We were three from Cisco, all different levels of diving experience so taking different courses...

If you are unlucky enough to have to use Windows, but lucky enough to get AutoHotkey installed, then here is a script that I use to enable the mouse-follows-focus function which I find indispensable. Somewhere deep in the settings, Windows has focus-follows-mouse, i.e. focus (and raise) the window where the mouse pointer currently is, which is good if you find the mouse the quickest way to switch between windows. But apparently the only way in Windows to get mouse-follows-focus, i.e. automatically bring the mouse pointer to the window that you switched to by keyboard, is an AutoHotkey script. ~!Tab:: KeyWait, Alt KeyWait, Tab WinGetPos, X, Y, width, height, A MouseMove,10,10, return #c:: WinGetPos, X, Y, width, height, A MouseMove,10,10, return The idea in this AutoHotkey script is to bring the mouse pointer to the top left corner of the focused window when switching windows by Alt+Tab. It does not always work, so there is also Win+c...

This post originally appeared on an old blog on Oct 15, 2011. It's part of a series of posts which I'm "recovering" from the archives. Remember when Minecraft was the hot new thing? Until the recent battle royale games came along it was the hot thing for quite a while. Past me extols its virtues and sets some challenges, few of which I have ever completed. [edited lede 2019]...

I am working towards putting all the work I've been doing at Oak Ridge online, and one recent project has been data exploration for calcium 45 data and NIST BL2 data. why am I doing this? This boils down to: "why do data exploration?", since in both of these use cases the motivations are the same as in most experimental sciences: You gather data,  plan for sources of error, predict what will happen, and test, but after collecting the data you still want to get a good look at it. There could be problems you didn't notice or unexplained trends. There are problems with your data that you anticipate, but you want to investigate Really both of these come down to visualization. I used to think that data visualization was an inconsequential field, but I've spent hours on problems that I could have solved much faster if I had a good visualization of the subprocesses. results what do I want to understand? There are two data sources - calcium 45 and NIST. I am more familiar with the calcium 45 data, since that experiment is a precursor to the Nab Experiment, which is what I've been working on for two years. For the calcium 45 data, there are a variety of effects at play: data acquisition effects some of the data is partially overwritten some of the data is partially corrupted the data acquisition system's behavior changes across particle energy ranges physics effects some particles hit the same detector twice in a short time some particles hit a detector edge and deposit energy in two detectors some particles are actually cosmic rays the setup has physical oscillations Applying clustering methods allows an exploration of these problems. For instance, if the system is shaking, there are several follow up questions such as "How much does this affect the signal?" and "What is the frequency of oscillation?"...

If You write blog posts or articles and publish them on a website, You may consider incorporating Table of Contents. It allows Your Readers to quickly orientate on the content they are about to read (this luxury may be highly appreciated). Furthermore, it provides a way of easy navigating through particular parts of Your work, thanks to which one may quickly jump to the part of their interest right off the bat. Last but not least, it nicely supports and encourages the habit of clarity within the content. Quick survey on what's coming: How does it work in general? How does it work under the hood? A closer look on the code. Being a writer, however, the HTML code needed to create such a Table of Contents is not necessarily something You'd be happy to play with. You would rather prefer to stay focused on the actual work (the text), which already puts enough on Your plate. On the other hand Table of Contents with all its advantages mentioned above seems to be tempting and, what's more important, could make a significant difference from Your Audience perspective. Fortunately, it doesn't have to be an extra amount of bothering work to handle. Thanks to jQuery You can have Your cake and eat it - simultaneously 🙂 ...

  I recently got back from the 2019 American Physical Society Division Nuclear Physics conference where I gave a talk about applying machine learning tools to a signal processing problem in nuclear physics and radiation detection. This post will be some of that talk (here's a link to the slides). what problem is this addressing? In radiation detection systems commonly used in nuclear physics, a charged particle such as a proton or electron hits a cold semiconductor, inducing a charge. That charge is digitized and recorded. When the data acquisition system detects an event, it records the charge in a small amount of time around the event (in my example 14 milliseconds). In a few different cases, multiple particles can hit the detector at the same time, resulting in multiple signals in the same readout. If this isn't identified, then the data acquisition system misreads the characteristics of the event...

With AR being a newly emerging technology, many implementations are very basic and have drawbacks. I myself will be using MOVERIO glasses. These glasses run android, and work by projecting a 0.43" 720p screen at the user's eyes to give the illusion of the tablet floating in the air in front of the user. With the small screensize, it's very obvious that it's difficult for any large amount of space in front of the user to be covered by the projected display. Another limitation of the technology is that I will be reliant on the inbuilt camera, which has a very small field of view. A small camera field of view means that the headset will only "see" a fraction of the space that the user is able to see. This risks breaking the illusion as the user is able to see through the projected screen, and the camera itself isn't able to see as much of the space it's in compared to the user, meaning that the user may be able to see someone they wish to block out while the headset itself cannot see this person...

The first four-wheeled love affairs are always special. In 1995, I got a 1985 Volkswagen Golf. I purchased that car from my father. I was 27 years old. Although I had my driver’s license for 10 years, I never felt the need for my own car. Reason being, the benefits of living in Reykjavik and Oslo...

I previously read all the His Dark Materials series, some of the accompanying light novels and the Book of Dust prequel. Now, the story continues. Now, I've just read Phillip Pullmans "The Secret Commonwealth". It engrossed me and got me thinking deeply. Lyra & Pan Lyra & Pan are two characters that I grew up reading about - I have re-read His Dark Materials many times over the years. I am glad to be able to read now about their on-going adventure. The struggle that Lyra & Pan are going through from the very start of the novel resonated quite a lot with me. Lyra becomes more cynical and analytics, that happens with age and maturity, but Pan wants to stay imaginative and playful. The sets up one hell of a mental struggle...

Photo by: Joshua Hoehne @mrthetrain False positives causing a legitimate application to be blocked is a common problem with security software, and if not handled properly and quickly, it is one that could hurt, or even destroy a security product's credibility, or in the worst case, the credibility of the entire sector. It is therefore very important that whenever a security vendor's product is incorrectly flagging a legitimate product that the vendor resolve the issue within hours, or at most a couple of days of being notified about the problem. Such problems should really be handled with a priority just barely short of problems threatening the customer's system (like security vulnerabilities). If a user cannot use their chosen, legitimate products because a security product blocks it, they are far more likely to disable, or uninstall, the security product, than to change their chosen product. If the problem is caused by some actual problem with the flagged product, the security vendor should immediately contact the application vendor with detailed information about what the problem is, and how to solve it. Easier said than done As an example of how to not go about handling such cases, consider this recent case. About a month ago, in early September, the Vivaldi users at a small German company discovered that they were no longer able to use Vivaldi, since their Sophos firewall was blocking it. They contacted Sophos customer support and were effectively told that "The block was a management decision", "Vivaldi does not support content filtering", "Vivaldi does not support a required API", "Submit a feature request, we can't do anything before we receive that" (the latter had been filed over a month before this case started). No information was provided about which API support was "missing", or why "management" had decided to block Vivaldi. Since Vivaldi is based on Chromium, just like Google Chrome, if the blocking was really due to missing support for an API, then Sophos should be blocking Google Chrome as well. We have the same feature support as other Chromium-based browsers. The only real difference is that (e.g. on Windows) our executable is named "vivaldi.exe", not "chrome.exe" and our UI is implemented differently. After receiving the replies from Sophos, one of the users in the company reported the problem in a post to our German language forum, and it was then forwarded to those of us in the security group. I decided to look into the Sophos support site, and did find their chat support, but after two hours of back and forth, being passed from one person to another, their response was effectively "We need a support ticket number, file it from the upload site". There were several problems with that upload site, mainly that there was no option to upload a file as "Affected vendor". You had to be either a "registered user" or "evaluating before purchase"...