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Course Description This course covers elementary discrete mathematics for science and engineering, with a focus on mathematical tools and proof techniques useful in computer science. Topics include logical notation, sets, relations, elementary graph theory, state machines and invariants, induction and proofs by contradiction, … Show more
Using Radicle CI for Development In this blog post I show how I use Radicle and its CI support for my own software development. Published by lars on 23.07.2025 In this blog post I show how I use Radicle and its CI support for my own software development. I show how I start a project, add it to Radicle, add CI support for it, and manage patches and issues. I have been working full time on Radicle CI for a couple of years now. All my personal Git repositories are hosted on Radicle. Radicle CI
CISA has warned that attackers are actively exploiting two security vulnerabilities in the SysAid IT service management (ITSM) software to hijack administrator accounts. The two unauthenticated XML External Entity (XXE) flaws, tracked as CVE-2025-2775 and CVE-2025-2776, were reported by watchTowr Labs security researchers in December 2024 and patched in March with the release of SysAid On-Prem version 24.4.60. One month later, watchTowr Labs also published proof-of-concept code, showing that t
Christina Cacioppo, co-founder and CEO of Vanta, speaks at the TechCrunch Disrupt conference in San Francisco on Oct. 29, 2024. Vanta, a startup with software for managing compliance with cybersecurity and privacy standards, said Wednesday that it closed its latest fundraising round at a roughly $4 billion valuation. The $150 million round, which included funding from CrowdStrike's venture arm, represents a valuation increase from $2.45 billion last year. The jump reflects continued corporate
Beneath Kansas City's streets lies an unexpected wonder—SubTropolis, the world's largest underground business complex, spanning over 6 million square feet in a 270-million-year-old limestone deposit. Carved out of limestone in the 1940s, this hidden metropolis was the vision of Lamar Hunt, famed founder of the Kansas City Chiefs. Originally a mining site, SubTropolis has become an essential part of Kansas City’s economic landscape. The origins of SubTropolis date back to the late 19th and earl
Table of Contents Lucid Air EVs Unlock Tesla Supercharger Access and Updates for 2026 Model Year The Lucid Air electric sedan, often named one of the fiercest competitors to Tesla's Model S, is finally gaining charging network parity. The California-based luxury EV manufacturer is unlocking access to the Tesla Supercharger network of over 23,500 DC fast-charging stations later this month for all of its Lucid Air sedans. The news comes bundled with a host of quality of life upgrades to the Air E
A security camera in Myanmar captured something scientists have never seen before on film: the surface of the Earth lunging sideways during a magnitude 7.7 earthquake. In 1.3 seconds, the ground shifted 2.5 meters (a little over 8 feet), revealing something researchers have only been able to model or guess at until now. It’s the first direct video of a fault line in motion, offering a rare, horrifyingly calm glimpse at the forces that shape continents and rearrange cities. Videos by VICE Scie
Really fast. Blip’s fast relay supports multi-gigabit speeds, even over long distances where other services slow down. Because there are no separate “upload” and “download” steps, sending with Blip can be at least twice as fast as many other services. The recipient will start receiving right away rather than having to wait for you to finish uploading. Now, Blip might seem like magic, but it can’t break the laws of physics! Performance will be affected by the upload speed of the sender’s intern
MIAMI—We were beginning to run out of bait, and the sharks weren't cooperating. Everybody aboard the Research Vessel Garvin had come to Miami for the sharks—to catch them, sample them, and tag them, all in the name of science. People who once wanted to be marine biologists, actual marine biologists, shark enthusiasts, the man who literally wrote the book Why Sharks Matter, and various friends and family had spent much of the day sending fish heads set with hooks over the side of the Garvin. But
The MEDC also helped us early on create a model in Excel for tracking business financing and forecasting, forecasting our future financial needs, so that we could be proactive instead of reactive to financial limitations. We knew it wasn't going to be inexpensive to design and build a piece of equipment that's the size of two very large refrigerators that had never been built before. That type of financial-forward modeling helped us figure out when we would need to start fundraising and taking i
Lucid EV owners will soon have full access to Tesla’s Supercharger network, which is something that's been in the works since 2023. This goes live on July 31, allowing folks to juice up at more than 12,000 Supercharger stations throughout North America. Some of the company's vehicles can already use these charging stations, with the Gravity SUV gaining access earlier this year. That leaves the Air line of luxury EV sedans. These vehicles will be able to roll up to a Tesla Supercharger for a top
Maria Diaz/ZDNET My kid had been asking for a Toniebox for two years, but I always talked her out of it. I'm no Grinch, but each set basic starter kit is $100. Then we finally got one during a Prime Day sales event. Testing a Toniebox has not only convinced me that it's perfect for my kids and worth every penny, but it's such a great device that I'd recommend it to any parent of young children. Here's why. Also: I ditched my Bluetooth speakers for this slick turntable - and it's more practical
Really fast. Blip’s fast relay supports multi-gigabit speeds, even over long distances where other services slow down. Because there are no separate “upload” and “download” steps, sending with Blip can be at least twice as fast as many other services. The recipient will start receiving right away rather than having to wait for you to finish uploading. Now, Blip might seem like magic, but it can’t break the laws of physics! Performance will be affected by the upload speed of the sender’s intern
Cleaning your fridge and freezer is important to do every so often, but what about the food sitting inside it? Specifically, that bottom drawer, where fruits and veggies go to retire. Even the healthiest-looking produce can carry unwelcome hitchhikers like dirt, bacteria and trace pesticides. Now, don't freak out. According to the USDA's Pesticide Data Program, over 99% of tested foods were well within the EPA's safety limits -- and more than a quarter didn't have a speck of pesticide residue.
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Owners of the Lucid Air sedan will be able to charge their luxury EVs at thousands of Tesla Supercharger stations in North America starting July 31, nearly two years since the automakers reached an agreement. But there is a notable caveat: Lucid Air vehicles won’t be able to charge as fast as Tesla vehicles. Lucid said on Tuesday that all Lucid Air sedans, regardless of model year, will be able to access Tesla’s network of fast chargers with an approved adapter that costs $220. Tesla V3 (and ab
Cisco is warning that three recently patched critical remote code execution vulnerabilities in Cisco Identity Services Engine (ISE) are now being actively exploited in attacks. Although the vendor did not specify how they were being exploited and whether they were successful, applying the security updates as soon as possible is now critical. “In July 2025, the Cisco PSIRT became aware of attempted exploitation of some of these vulnerabilities in the wild,” reads the updated advisory. “Cisco c
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When Pokémon Concierge released in December 2023, we were immediately charmed by Dwarf Animation’s gorgeous, felt-covered spin on the world of Pokémon—and how the series resonated with the franchise’s older fans beyond gen-one nostalgia with its themes around work-life balance and burnout to provide the ultimate feel-good show. Now, we won’t have to wait much longer to check back into the Pokémon resort once again. During today’s Pokémon Presents livestream, the Pokémon Company and Netflix reve
When you turn on the faucet, you expect the water that comes out to be clean. When you go to the bank, you expect your money will still be there. When you go to the doctor, you expect they will keep your medical information private. Those expectations exist because there are rules to protect you. But when a technology arises almost overnight, the problems come first. The rules, you'd hope, would follow. Right now, there's no technology with more hype and attention than artificial intelligence.
Owners of the Lucid Air sedan will be able to charge their luxury EVs at thousands of Tesla Supercharger stations in North America starting July 31, nearly two years since the automakers reached an agreement. But there is a notable caveat: Lucid Air vehicles won’t be able to charge as fast as Tesla vehicles. Lucid said on Tuesday that all Lucid Air sedans, regardless of model year, will be able to access Tesla’s network of fast chargers with an approved adapter that costs $220. Tesla V3 (and ab
How To Migrate From OpenAI to Cerebrium for Cost-Predictable AI Inference If you're building an AI application, you probably started with OpenAI's convenient APIs. However, as your application scales, you'll need more control over costs, models, and infrastructure. Cerebrium is a serverless AI infrastructure platform that lets you run open-source models on dedicated hardware with predictable, time-based pricing instead of token-based billing. This guide will show you how to build a complete c
A Python script is a file intended for standalone execution, e.g., with python <script>.py . Using uv to execute scripts ensures that script dependencies are managed without manually managing environments. Note If you are not familiar with Python environments: every Python installation has an environment that packages can be installed in. Typically, creating virtual environments is recommended to isolate packages required by each script. uv automatically manages virtual environments for you and
Want smarter insights in your inbox? Sign up for our weekly newsletters to get only what matters to enterprise AI, data, and security leaders. Subscribe Now As we wrote in our initial analysis of the CrowdStrike incident, the July 19, 2024, outage served as a stark reminder of the importance of cyber resilience. Now, one year later, both CrowdStrike and the industry have undergone significant transformation, with the catalyst being driven by 78 minutes that changed everything. “The first anniv
A Python script is a file intended for standalone execution, e.g., with python <script>.py . Using uv to execute scripts ensures that script dependencies are managed without manually managing environments. Note If you are not familiar with Python environments: every Python installation has an environment that packages can be installed in. Typically, creating virtual environments is recommended to isolate packages required by each script. uv automatically manages virtual environments for you and
is a news writer who covers the streaming wars, consumer tech, crypto, social media, and much more. Previously, she was a writer and editor at MUO. Mayor Eric Adams announced over the weekend that New York City will send users real-time public safety alerts based on their specific location through the crime-tracking app Citizen. The city also announced that public safety agencies, like the New York City Police Department, Fire Department, and Emergency Management, will have access to a portal t
Intuitive Surgical, an American biotechnology company, introduced DaVinci surgical robots in the late 1990s, and they became groundbreaking teleoperation equipment. Expert surgeons could operate on patients remotely, manipulating the robotic arms and their surgical tools based on a video feed from DaVinci’s built-in cameras and endoscopes. Now, John Hopkins University researchers put a ChatGPT-like AI in charge of a DaVinci robot and taught it to perform a gallbladder-removal surgery. Kuka sur
Following the Big Bang, our universe expanded at an exponential rate. According to this theory, known as cosmic inflation, the explosive growth produced tiny quantum fluctuations that later evolved into galaxies. Cosmic inflation neatly explains how our universe got so large and mostly homogenous, and that’s why it’s remained a strong theory in cosmology for decades. But it’s far from perfect. Cosmic inflation depends on certain theoretical assumptions that can get rather arbitrary—not ideal fo
Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . We are mere days away from the official launch of the Samsung Galaxy Z Fold 7 on July 25. Amazon is enticing customers to try out the foldable handset by throwing in a $300 gift card with every pre-order. This can be used to purchase anything on the platform and is available with every
Like so many other things at CNET, we test exercise bikes as thoroughly as possible through rigorous examination and comparison. Each exercise bike in our list has been through at least 100 miles of riding, using as many of the built-in features as possible. CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you buy through our links, we may earn a commission. The Peloton bike has been the go-to exercise bike for a lot of people i