Strain gauge made out of PCB
A strain gauge, with amplifier, where the sensing element is the circuit board itself. Sensitive enough to measure deflections in the range of micrometers while having a full scale deflection range of +/- 3cm. strain_demo.mp4 Manufacturing The recommended board thickness is 0.6mm, although it could be made thicker or thinner for different applications. Thinner boards […]
Richest 10 Percent Responsible for Two-Thirds of Warming
The wealthiest 10 percent of people on Earth have fueled two-thirds of the warming since 1990, according to a new modeling study. The top 1 percent alone are responsible for one-fifth of warming, not just by using more energy, authors say, but by investing in sectors, like fossil fuels, that are driving up emissions. The […]
Stratolaunch Successfully Completes Reusable Hypersonic Flight and Recovery
MOJAVE, CA – May 05, 2025 – Stratolaunch is pleased to announce the successful completion of its second hypersonic flight and recovery with the Talon-A2 (TA-2) fully autonomous vehicle in March 2025. We are also pleased to share that this significant accomplishment followed the successful first hypersonic flight of Talon-A2 in December 2024 confirming the […]
Everyone Is Cheating Their Way Through College
Illustration: New York Magazine Chungin “Roy” Lee stepped onto Columbia University’s campus this past fall and, by his own admission, proceeded to use generative artificial intelligence to cheat on nearly every assignment. As a computer-science major, he depended on AI for his introductory programming classes: “I’d just dump the prompt into ChatGPT and hand in […]
Using tests as a debugging tool for logic errors
In Java development, logic errors constitute a unique class of defects where code executes flawlessly according to its written instructions while systematically violating business requirements. The disconnect arises when programmatic operations mathematically diverge from domain-specific rules. Think of a tax calculation that subtracts instead of adds deductions, or a scheduling algorithm that ignores daylight saving […]
CLion Is Now Free for Non-Commercial Use
News Maria Goldade “C makes it easy to shoot yourself in the foot. C++ makes it harder, but when you do, it blows away your whole leg.” — Bjarne Stroustrup We can’t make С and C++ simpler, but we can make working with them a bit easier. CLion is now free for non-commercial use! Yes, […]
Crowd Sourcing Broken QR Codes
Is your QR code not scanning? You’ve come to the right place! Submit Your Broken QR Code for a Free Repair Upload your non‑scanning QR code now: https://docs.google.com/forms/d/e/1FAIpQLSdn3K9KEV72LPhPPzfS8YvBBzBeoYLbi5cB7IjlQHfsn2xtMg/viewform?usp=header You can also optionally email it to me at: [email protected]. I’ll try to repair your QR code and send you the results. Your code will also join […]
My quest to make motorcycle riding that tad bit safer
It began with a spark—a dormant passion reignited after many years away from motorcycling. Life had steered me in different directions, away from the saddle, but something deep inside pulled me back to the thrill and freedom that only riding offers. Returning to motorcycling after such an extended hiatus was daunting yet exhilarating. I vividly […]
So Much Blood
In a recent post about trading stuff for money, I mentioned: Europe had a [blood plasma] shortage of around 38%, which it met by importing plasma from paid donors in the United States, where blood products account for 2% of all exports by value. The internet’s reaction was: “TWO PERCENT?” “TWO PERCENT OF U.S. EXPORTS […]
Lazarus Release 4.0
The Lazarus team is glad to announce Lazarus 4.0. This release was built with FPC 3.2.2. Here is the list of changes for Lazarus and Free Pascal:https://wiki.lazarus.freepascal.org/Lazarus_4.0_release_noteshttps://wiki.lazarus.freepascal.org/User_Changes_3.2.2 Here is the list of fixes for Lazarus 4.x:https://gitlab.com/freepascal.org/lazarus/lazarus/-/commits/fixes_4/ The release is available for download on SourceForge:https://sourceforge.net/projects/lazarus/files/ Choose your CPU, OS, distro and then the “Lazarus 4.0” directory. […]