Collaborate Disseminate
Careful, the walls have ears. Or more specifically, the smart speaker on the table has ears, as does the phone in your pocket, the fitness band on your wrist, possibly the TV, the fridge, the toaster, and maybe even the toilet. Oh, and your car is listening to you too. …read more
Continue reading Wearable Cone of Silence Protects You from Prying Ears
It looks like the third decade of the 21st century is off to a bit of a weird start, at least in the middle of the United States. There, for the past several weeks, mysterious squads of enormous multicopters have taken to the night sky for reasons unknown. Witnesses on …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?
Many alcoholic beverages are aged in barrels for long periods of time. The aim is to impart flavors from the wood of the barrel into the liquid, and allow a whole host of chemical reactions to happen, changing the character of the taste. However, this takes time, and time is …read more
If nothing else, [Justin Atkin] is persistent. How else do you explain a five-year quest to create sonoluminescence with simple tools?
So what exactly is sonoluminescence? The short answer is as the name suggests: a release of light caused by sound. In [Justin]’s case, he used an ultrasonic transducer to …read more
Continue reading Capture a Star in a Jar with Sonoluminescence
Art installations are an interesting business, which more and more often tend to include electronic or mechanical aspects to their creation. Compared to more mainstream engineering, things in this space are often done quite a bit differently. [Jan Enning-Kleinejan] worked on an installation called Prendre la parole, and shared the …read more
Continue reading Lessons Learned From An Art Installation Build
A team from the University of Arkansas for Medical Sciences (UAMS) has developed a non-invasive tool which not only detects circulating tumor cells (CTCs) in the bloodstream, but can blast them away at the same time. Dubbed the Cytophone, it … Continue reading Cytophone detects and blasts circulating cancer cells
You’d think that something called “white fuming nitric acid” would be more than corrosive enough to dissolve just about anything. Heck, it’s rocket fuel – OK, rocket fuel oxidizer – and even so it still it wasn’t enough to pop the top on this vintage Fairchild μL914 integrated circuit, at …read more
That first glimpse of a child in the womb as a black and white image on a screen is a thrilling moment for any parent-to-be, made possible by several hundred thousand dollars worth of precision medical instrumentation. This ultrasound machine cobbled together from eBay parts and modules is not that …read more
Continue reading Simple Ultrasound Machine Shows The Skeleton Lurking Inside Us All
In a proof-of-concept hack, researchers penetrated an ultrasound and were able to download and manipulate patient files, then execute ransomware. Continue reading RSA Conference 2019: Ultrasound Hacked in Two Clicks