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Mechanosynthesis of Atomic Carbon Structures Using Inverted-Mode STM

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Generally chemical synthesis involves putting a variety of compounds together in an environment where they will react and self-assemble into the desired product. Direct mechanical manipulation could be significantly more effective with synthesizing various substances. This mechanosynthesis is however not that simple, despite the deceptive appearance of those ball-and-stick representations in high school chemistry class. This is demonstrated in a recent (pre-publication) study by [Megan Cowie] et al. using inverted-mode STM. One could say that in a sense what we’re trying to accomplish is somewhat akin to what biological cells do in their ribosome, where compounds are synthesized into a protein string using a template. The difference here being that rather than merely trying to create a 2D structure that then folds into a desired shape, we would like to build 3D structures directly. Using a scanning tunneling microscope ( STM ) you can measure a surface on a nanoscale, with the ...
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Radio-Gaga is a Toddler Friendly Remote In a Radio

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Humans of all ages like music, but you can’t exactly pass a toddler the aux cable. That’s not to say the younger set don’t have their own particular tastes– they absolutely do, and they absolutely love to take control and inflict them on the rest of us. [nbr23] has a toddler who loves both music and tactile controls, and decided to combine the two for them with a project he calls Radio-Gaga , which is a gutted Panasonic radio that calls up tunes via Home Assistant. Interestingly enough the radio is now just a remote control– the speaker has been removed along with the rest of the radio hardware. The buttons and dials are still there, though, letting the toddler control what tunes are on offer and at what volume via couple of potentiometers hooked to an ESP32. The sound itself is being served up from the homelab to a USB speaker. There’s one notable flaw with this architecture: if the batteries die on the remote, “Let it Go” does not unti...
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Overpowered RC car + Gimbal Cam = The Greatest Chase Vehicle We’ve Ever Seen

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Modern cinema relies very heavily on quadrotor drones, because they make for very smooth, very easy to position platforms. From slow pans to chase shots, drones are great– if your shots can be taken at a high enough altitude. Close to the ground, things get a bit dodgier. That’s where [Transistor Man]’s camera chase vehicle comes in — it’s a rover, so it excels close to the ground. In fact, it can’t go anywhere else, except perhaps if provided with a jump. It’s got a hefty gimbal to hold the camera steady on any terrain, a decade-old surplus radio to provide full HD FPV to the remote driver, and a powerful 1/5th scale radio control rally chassis to make it all go. Plus googly eyes, because everything is better with googly eyes. It looks like an enormous amount of fun to drive, but more importantly it provides smooth, cinematic shots from the professional Sony camera held in the gimbal. One big takeaway is that when 3D printing something that wi...
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Reviving Mystery Nintendo 64 Game Cartridge Found in the Woods

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As far as things go that you are likely to find during a relaxing walk in the forest, Nintendo 64 game cartridges probably do not rank high on that list. Yet this is what happened to a friend of [BlueBox Tinkers] a few years back, leaving him dying to see whether the cartridge would still work, as well as what game it is since its labels got obliterated courtesy of its time spent enjoying the outdoors. Fortunately he recently got a chance to see whether he could revive this cartridge . The insides look pretty much like what you’d expect after presumably months or years of exposure, with the metal shield severely corroded. The PCB does however look pretty decent still, with obvious signs of corrosion on the front-side vias, and a pretty gross-looking back side. Unfortunately it wasn’t confirmed whether this friend tried to stick this old cartridge into an N64 console, but [BlueBox Tinkers] wasn’t going to take any such chances. First up was an inspection and deep clea...
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IBM Home Director: Home Automation in 1996

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Back in the 1990s IBM had a pretty sizeable presence in the PC market, including its rather spiffy Aptiva series of PCs. Naturally their PCs had to feature heavily in another consumer-related thing that was popular in the 1990s, being smart home automation in the form of IBM Home Director. Recently [Ionic1k] took a look at this blast from the past, starting with one of the original IBM commercials. At its core it used the same X10 protocol that similar solutions from RadioShack and others used, with many modules and packages you could get to use with it. You could also get a more bespoke installation performed at your home to move beyond mere X10, which some people are still finding when they’re buying a house. Since this uses powerline communication, it required no wires to be run, just the requisite modules to be plugged into a power outlet, with the video demonstrating the basic setup and installation. The PC itself is plugged into the control module via the serial port, f...
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An Analog Synth For The Modern World

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We cover so many projects here at Hackaday that lead the author down a rabbit hole of technological investigation that distracts us from the task of bringing them to you. Such a project is polyUAnalog , a very modern take on an analogue synthesizer. If you are imagining a synth of old with modules and patch cables, think again. The modern way to do this is it seems to use an individual synthesizer chip for each voice, resulting in a very versatile instrument indeed. The integrated circuit in question is the AS3397 , which when coupled on a PCB with a Raspberry Pi Pico makes for a self-contained single-voice analog synth. It’s controlled via I2C from a conductor board for which frustratingly the README doesn’t give a processor, but we think may be powered by another Pi Pico. This board does the job of taking MIDI and other controls, and farming them out tot he individual voices. The prototype has ten, but it can support many more. It’s the work of a pair of researcher...
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FLOSS Weekly Episode 874: Really, We Do PDFs

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This week Jonathan chats with Andrea Gallo about RISC-V! What does it mean for RISC-V to be an Open ISA? Where is RISC-V popping up, and what’s the new frontier? Watch to find out! NVIDIA Talk Training Courses RISC-V Keynote: The Architecture of Intelligence: From Data Center to Edge RISC-V Developer Workshops Did you know you can watch the live recording of the show right on our YouTube Channel ? Have someone you’d like us to interview? Let us know, or have the guest contact us! Take a look at the schedule here . Direct Download in DRM-free MP3. If you’d rather read along, here’s the transcript for this week’s episode . Places to follow the FLOSS Weekly Podcast: Spotify RSS Theme music: “Newer Wave” Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License from Blog – Hackaday https://ift.tt/8K9YcAt
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