alzymologist

ah it’s this way.

ok, just consider buying bare sensors and attaching them to some MCU boards you like - with good connectivity and all - some distance away from the boards (working MCU alters readings significantly unless you bump it into ultra low power, which makers of these simple adafruuit probes often do not care about). It’s way cheaper and easier to integrate in most cases, also you get to choose sensors just for the task, often you can get insane performance (like, glass-clad Pt thermal probes are often surprisingly cheap, for example)

This task needs more specifications; humidity is such a wide spectrum.

Ok, I’ve done experiment myself; it was a dumb idea. Sure I can see the bass beat on smarthone hall sensor as sharp periodic spikes… from few cm away of the coil.

Thing is, any measurable signal outside of coupled system is essentially power loss, which industrial made speakers are, obviously, optimized against. The field loops back into the magnetic drive through the shortest achievable path. Then, it’s not your typical radiative EM system, it’s low frequency near field transmission - field drops exponentially as you move away from the coil.

Most probably, you’d need to measure long periodic signal, do lots of oversampling, etc. to gen anything. Or build a high fidelity resonator to steal the field from the speaker - essentially, same thing, except the resonator will probably start singing, too.

So I’d give up on magnetic approach; why go for counteroptimized signal when you have optimized acoustic field? Just analyze it - look for sustained harmonic vibrations, fat envelopes so different from human voice barking and foorsteps; EDM are full of those nice sounds.

What a shitty article. Not mentioning stupid ai hype, it’s like there was no half century (at least) of work on purely photonic computations. And no explanation of what’s new about this work, I remember threshold switches in amplifying media 2d Si photonic crystals from 2008 or so, I date it easily as it was on a conference in Crimea well before occupation.

Could be doable with just a hall sensor chip, you have one in your phone, just check it out quickly. Large coil will probably catch slow vibrations too. Also try just filtering audio signal, like get only sustained bass sound, footsteps and voice have short lived low frequency components compared to most music except for percussion I suppose.

I found manual unpowered bow- or chain-saws (simple chain and handles, no motor etc) much better for just this purpose. They are easy to carry around and are faster to start and stop using - exactly what I need when something fell unexpectedly, not a clear-cut type of jobs.

hell yeah, I’ve made a whole useless product like that! In lab, we had OLED display powered by NFC too, and touchscreen e-ink tetris device, and spot welder lol. Nobody believed me it’s possible, even engineers who worked with me, might be I was the first one to come up with this hack.

Reminds me of ftl excitation propagation in large organic molecules making selective laser chemistry excitations unfeasible. Or similar propagation in water through hydrogen bonds making tritium distillation from nuclear wastewater hard.

I appreciate how author of the article gently avoids mentioning ftl, that is some high professional standard for popular explanation. Amazing text.

Never really head issues with wilds on fruits, once your pitch is large enough and vigorous, all should be safe. Dry fruits are safes as yeast is certainly dormant in them and will not have a chance to germinate.

Better to wait a few days before dumping chillies though, bubbling blows off some aroma. But this sure looks awesome!

Ah, pretty opals. I used to make and study synthetic ones. I miss optics lab.

It’s en.wikipedia.org/wiki/Law_of_mass_action mostly; also for cross-linking, polymer chunks should be brought close to each other to make better bonds. Wood will absorb the compound better when dry, as it’ll have higher surface energy and no water trapped to be displaced as compound moves in.

Well at least with opensource, we can keep forking. Like Audacity project showed is possible, for example, through chaos to better product. I’m more concerned with physical resources though, those do not fork.

Github is not git, after all, and self-hosting some git server is kind of simple. Not doing it myself though, too many friends who do it already lol.

just watching humanity burn hard-earned resources on something arguably worse than arms race and dotcom/blockchain craze combined. Got to outlast it, in spite.

I feel like this needs a video demo, maybe with sound!

Damn this looks cool, but

I can’t find band structures promised in title page.

The database is short of “massive”, I wish there were the golden classics of Au, Si, etc.

The largest gallium arsenide particle in the library seems to be messed up quite badly. I kind of suspect there is no solution stability check in this web tool.

I’ve tried adding chilies to Christmas ale; as usual with that style, they fit perfectly.

done! (post edit)

Yeah, saw a tiny one yesterday too! Are they really edible? They look quite tough.

read about this stuff in a journal from 1930s. In German.

If you have access to ripe and fresh mango, try making mango melomel. Mead at OG 1120 infused with mango, 200g/L at secondary. Stuff was really good with average Houston store-bought mangos, chunks. No problems with sediment this way, it settles down naturally quite well.