Collaborate Disseminate
As far as hobbies go, ham radio tends to be on the more expensive side. A dual-band mobile radio can easily run $600, and a high-end HF base station with …read more Continue reading Few Things Are Cheaper than This Antenna
Cybersecurity startups Insane Cyber, Resonance Security, RunReveal and StepSecurity announce pre-seed, early-stage, and seed funding rounds.
The post Startup Dealflow: New Investments at Resonance, RunReveal, StepSecurity, Insane Cyber appeared first o… Continue reading Startup Dealflow: New Investments at Resonance, RunReveal, StepSecurity, Insane Cyber
We haven’t validated this vuln ourselves… but the source of the story is impeccable. (Impeccably dressed, at least.) Continue reading Laptop denial-of-service via music: the 1980s R&B song with a CVE!
As side-channel attacks go, it’s one of the weirder ones we’ve heard of. But the tech news was filled with stories this week about how Janet Jackson’s “Rhythm Nation” is …read more Continue reading Hackaday Links: August 21, 2022
It’s one thing to speculate about what’s happening with the Mars helicopter Ingenuity, but it’s another to get an insider’s view on recent flight problems. As we previously reported, Ingenuity …read more Continue reading Hackaday Links: October 3, 2021
Transformers have an obvious use for increasing or decreasing the voltage in AC systems, but they have many other esoteric uses as well. Electric motors and generators are functionally similar …read more Continue reading Keep Coffee Warm Through Induction Heating
In our vernacular, bricking something is almost never good. It implies that something has gone very wrong indeed, and that your once-useful and likely expensive widget is now about as useful as a brick. Given their importance to civilization, that seems somewhat unfair to bricks, but it gets the point …read more
How do you clean the residual flux off your boards? There are plenty of ways to go about the job, ranging from “why bother?” to the careful application of isopropyl alcohol to every joint with a cotton swab. It seems like more and more people are turning to ultrasonic cleaners …read more
Continue reading How Safe is That Ultrasonic Bath for Flux Removal?
Vibration is a fact of life in almost every machining operation. Whether you’re milling, drilling, turning, or grinding, vibration can result in chatter that can ruin a part. Fighting chatter has generally been a matter of adding more mass to the machine, but if you’re clever about things, chatter reduction can be accomplished electronically, too. (YouTube, embedded below.)
When you know a little something about resonance, machine vibration and chatter start to make sense. [AvE] spends quite a bit of time explaining and demonstrating resonance in the video — fair warning about his usual salty shop language. His goal with …read more
Continue reading Fighting Machine Tool Chatter with a 555 Timer