What is a passkey? A passkey is a new way to sign in that works completely without passwords. By using the security capabilities of your devices like Touch ID and Face ID, passkeys are way more secure and are easier to use than both passwords and all current 2-factor authentication methods.
Over the last year, cloud storage services Box, Dropbox, Google Drive, and Microsoft OneDrive—and probably others—have migrated from custom kernel extensions to Apple’s new-ish File Provider extension. It provides an Apple-approved framework for integrating remote files into macOS and displaying them in the Finder. I touched on this move a year ago in “Cloud Storage Forecast Unsettled, with Possible Storms” (4 February 2022).
Writing Javascript without a build system Hello! I’ve been writing some Javascript this week, and as always when I start a new frontend project, I was faced with the question: should I use a build system?
I want to talk about what’s appealing to me about build systems, why I (usually) still don’t use them, and why I find it frustrating that some frontend Javascript libraries require that you use a build system.
I’m writing this because most of the writing I see about JS assumes that you’re using a build system, and it can be hard to navigate for folks like me who write very simple small Javascript projects that don’t require a build system.
Analyzing the characteristics of real-world applications is difficult. We often make generalizations about applications we see in the wild, both anecdotal and statistical: "Single-Page Applications are slower than multipage" or "apps with low TTI loaded fast". However, the extent to which these generalizations hold for the performance and architectural characteristics we care about varies. I believe one of the primary determinants of this variability are a product's features and design constraints, and classifying applications based on their features & constraints can enable more targeted and impactful solutions to the problems faced by each.
Hello! A few days back we talked about problems with floating point numbers.
This got me thinking – but what about integers? Of course integers have all kinds of problems too – anytime you represent a number in a small fixed amount of space (like 8/16/32/64 bits), you’re going to run into problems.
So I asked on Mastodon again for examples of integer problems and got all kinds of great responses again. Here’s a table of contents.
The Eisenhower matrix is a popular time management tool that can help you prioritize your tasks and make the most of your time.
The matrix, named after former U.S. President Dwight D. Eisenhower, is a tool that helps you evaluate the importance and urgency of your tasks. By categorizing tasks into four quadrants, you can quickly identify which tasks are the most important and should be done first.
The initial segment of what will be the first underwater fiber-optic link to skirt the North Pole, connecting Japan and Europe, will light up in early 2023. This stretch, called Iris, will link Iceland to Ireland. In subsequent years, the Far North Fiber project will lay down a cable through the Northwest Passage, connecting Iceland to Greenland, then Canada, Alaska, and finally Japan. Far North Fiber will help increase the geographic diversity of the world’s fiber-optic network; currently, submarine cables are laid along a few well-trodden routes, leaving the network vulnerable to local hazards, like ship anchors, earthquakes, or fiber-eating sea monsters.
The ANSI escape sequences you're looking for are the Select Graphic Rendition subset. All of these have the form
\033[XXXm where XXX is a series of semicolon-separated parameters.
To say, make text red, bold, and underlined (we'll discuss many other options below) in C you might write:
printf("\033[31;1;4mHello\033[0m");
It is not uncommon to hear about C/C++ programming as a shorthand for “C and C++” programming. This implies that C and C++ are similar, but distinct, programming languages with the obvious interpretation being that C++ is a proper superset of C. However, this does not accurately describe the situation. The C++ programming language is inspired by the C programming language and supports much of the syntax and semantics of C, but is not a superset that is built on top of C. Despite sharing a historical relationship to one another, the languages have evolved independently and are specified in separate language standards. Due to this separation of the two specifications, incompatibilities have crept into the shared space of code that can be compiled by either a C compiler or a C++ compiler.
Last week, we blogged about the making a very small RISC-V emulator. Folks asked the author the next logical question after finding out that the emulator works: Can it run Doom?
The original Doom is considered one of the first pioneering first-person shooter games, introducing to IBM-compatible computers features such as 3D graphics, third-dimension spatiality, networked multiplayer gameplay, and support for player-created modifications with the Doom WAD format. Over 10 million copies of games in the Doom series have been sold; the series has spawned numerous sequels, novels, comic books, board games, and film adaptations. The author fortunately had made a port of doom for small memory constrained systems and used that for tests.
For years, a small pedantry war has been raging in our address bars. In one corner are brands like Google, Instagram, and Facebook. This group has chosen to redirect example.com to www.example.com. In the opposite corner: GitHub, DuckDuckGo, and Discord. This group has chosen to do the reverse and redirect www.example.com to example.com.
Does “WWW” belong in a URL? Some developers hold strong opinions on the subject. We’ll explore arguments for and against it after a bit of history.
SEVENTY-FIVE YEARS is a long time. It’s so long that most of us don’t remember a time before the transistor, and long enough for many engineers to have devoted entire careers to its use and development. In honor of this most important of technological achievements, this issue’s package of articles explores the transistor’s historical journey and potential future.
In “The First Transistor and How it Worked,” Glenn Zorpette dives deep into how the point-contact transistor came to be. Then, in “The Ultimate Transistor Timeline,” Stephen Cass lays out the device’s evolution, from the flurry of successors to the point-contact transistor to the complex devices in today’s laboratories that might one day go commercial. The transistor would never have become so useful and so ubiquitous if the semiconductor industry had not succeeded in making it small and cheap. We try to give you a sense of that scale in “The State of the Transistor.”
APIs for Personal Weather Station Contributors
The Weather Company Data APIs are served from our Enterprise Data Platform built upon the latest, most robust and globally distributed cloud technologies leveraging the core competence of our weather systems and next-generation globally distributed, highly available, low latency platforms. The Enterprise Data Platform has been architected from the beginning with extreme scale and performance as key factors of success and is automatically scaled to deliver tens of Billions average daily requests with extremely low latency.
Culture shifts. But it’s held in place by norms, and those are driven by status and affiliation.
No one actually needs a car that can accelerate one second faster than most other cars. But having one confers status in some circles. But what happens when a new generation of technology makes that previously fast car not the fastest anymore? Is it still a luxury good?
IF GRAIN MUST be dragged to market on an oxcart, how far can it go before the oxen eat up all the cargo? This, in brief, is the problem faced by any transportation system in which the vehicle must carry its own fuel. The key value is the density of energy, expressed with respect to either mass or volume.
The era of large steam-powered ocean liners began during the latter half of the 19th century, when wood was still the world’s dominant fuel. But no liners fired their boilers with wood: There would have been too little space left for passengers and cargo. Soft wood, such as spruce or pine, packs less than 10 megajoules per liter, whereas bituminous coal has 2.5 times as much energy by volume and at least twice as much by mass. By comparison, gasoline has 34 MJ/L and diesel about 38 MJ/L.
But in a world that aspires to leave behind all fuels (except hydrogen or maybe ammonia) and to electrify everything, the preferred measure of stored energy density is watt-hours per liter. By this metric, air-dried wood contains about 3,500 Wh/L, good steam coal around 6,500, gasoline 9,600, aviation kerosene 10,300, and natural gas (methane) merely 9.7—less than 1/1,000 the density of kerosene.
How do batteries compare with the fuels they are to displace?
Welcome to MicroPython on Unicorn!
The terminal beside this is no ordinary REPL.
It utilizes the Unicorn CPU emulator converted
to Javascript by Unicorn.js in order to run MicroPython
"bare metal" on an ARM CPU emulation.
MicroPython on Unicorn is completely open source so
make sure to report bugs to the issue tracker!.
Source: https://github.com/micropython/micropython-unicorn
The user and reset buttons along with the LEDs and pins
on the pyboard below are fully functional. Unfortunately
that's not quite the case for the clock speed approximation
when delayed.
Try to write a script, paste some code or run a demo!
Raspberry Pi Pico W brings WiFi to the Pico platform while retaining complete pin compatibility with its older sibling, and now as of CircuitPython 8.0.0-beta.2, there is CircuitPython WiFi support for the Pico W! This guide includes examples for testing your WiFi connection, using requests to pull JSON feeds, ping API's and log sensor data for IoT projects; all using CircuitPython! Status Bar As of CircuitPython 8.0.0, if you have a smart terminal program like Thonny, tio or Screen, you will see the status of your CircuitPython board in the header bar of the terminal.
Persistence-of-vision, or POV, displays work on the principle that if a light blinks in front of your eye, you perceive it for some amount of time after it’s gone. Blink lights in sequence when moving, and you can create what looks like a static image. “Programmer with a soldering iron” B45i found a deal on ATtiny13 microcontrollers for roughly $.30 each, and was able to create a POV display with one for less than a dollar.
In this blog post, I want to refine your mental model for Flexbox. We'll build an intuition for how the Flexbox algorithm works, by learning about each of these properties. Whether you're a CSS beginner, or you've been using Flexbox for years, I bet you'll learn quite a bit!
Let's do this!
Kiosks are designed to offer users specific information or a specific experience, while preventing access to any other activities on the device. They are often found in airports, shops, hospitals, cafes, and museums — any location where people need easy access to information or services like timetables, waiting times, product information, directions, self check-in machines, and so on.
Kiosk mode on your Raspberry Pi allows you to boot straight into a full-screen web page or an application without using the desktop environment. It’s the foundation for many different projects where you want to display information for a dedicated interaction with a user.
When was a word first used in print? You may be surprised! Enter a date below to see the words first recorded on that year. To learn more about First Known Use dates, click here.
Dutch daredevil Mark of The Flying Dutchmen shared stunning 4K POV footage of a coaster ride down a mountain into the Oeschinen Valley in the Bernese Oberland region of Switzerland.
The mountain coasters is located next to the gondola ! Oeschinensee is one of the most beautiful lake in Switzerland’s Bernese Oberland region. It is located 4 km east of Kandersteg in the Oeschinen valley.
Pathfinding Visualizer Step 1: Select a maze algorithm from the maze dropdown or draw your own boundaries by clicking and holding on the tiles Step 2: Select an pathfinding algorithm from the pathfinding dropdown Step 3: Click the play button to see the pathfinding visualizer in action !