
Tadeusz Rozycki
3K posts

Tadeusz Rozycki
@TedRozycki
Emerytowany nauczyciel, informatyk hobbysta.




@drogitowarzyszu Kupiłam sobie zieloną, bo mnie urzekł kolorek :P bardzo fajna, nie mam z nią problemów i przyjemnie klika 🫶

Seen this viral tweet about a portable audio jammer? Looks cool, right? It also looks quite similar to 100s products sold on Alibaba & in spy shops for years. Or as DIY kits for $50 in parts. They use ultrasonic noise to overwhelm very close-by microphones. I'm skeptical about the price tag & way it's being marketed, and I'd like to share why: it seems to me that what differentiates this, aside from the privacy-aligned language, are claims that sound to me like they've developed "novel physics" & use AI to detect microphones. This would be extraordinary and would require equally extraordinary proof if true. I suspect that the reality may be more like using WiFi etc to scan for devices. This is not novel physics. The problem: many of the microphones that people are most worried about don't emit wifi or bluetooth etc. Or could be a phone in airplane mode. Etc. Additional issues around ultrasonic jamming? Complex range limitations, issues with room reflections, fabric absorbing emissions from your jammer, obstructions etc.. A phone in a fabric pocket might not be defeated by this device reliably, for example. Critically also: the range of this kind of tech is the distance between the emitter and the microphone. Not between you and the unwanted microphone. So if you are in a normal size room and the microphone is, say, 3 meters from you in the ceiling, or on the other side of the couch, it might well still hear you clearly. Consider asking your friendly local expert in audio, physics, or security before purchasing or investing in this product. I'm not one of those. Source of my understanding: I spent some time a few years ago planning to assemble such a device and read a lot of papers. I may be wrong in my understanding (or missing something!) and would happily correct if I've misunderstood what they are offering. To learn more about this popular and well-known category of object, watch @LinusTech from a year ago youtube.com/watch?v=FyeCn7…

Today, we're introducing Spectre I, the first smart device to stop unwanted audio recordings. We live in a world of always-on listening devices. Smart devices and AI dominate our world in business and private conversations. With Deveillance, you will @be_inaudible.











Context: About two hours ago, Bobby Kennedy said that the FDA is removing 14 peptides from this list. That means that compounding pharmacies are going to be able to compound a lot of the peptides that are gaining popularity these days. That might mean BPC-157 and GHK-Cu!







ChatGPT 5.2 with thinking. The mutated strawberry problem. 🍓












