qaute

10 ms·

1.
by qaute 6y ago
> I wonder if you can make an unpickable lock with MEMS I'm not sure what you mean. MEMS are generally tiny and I'm not sure why you'd need a ~1mm safe? But MEMS relay switches, which mechanically connect/disconnect c
2.
by qaute 6y ago
> I always wondered why you needed gearing mechanisms in a micro machine. Has there ever been a practical application for gears in MEMS? IIRC, Sandia Lab's SUMMiT V process (the source of videos like [1]) was funded in part to make
3.
by qaute 6y ago
> I wonder if you can make micro machines at this level? The MEMS thing. At this size range, though state-of-the-art MEMS (mechanical vibrating frequency filters for RF receivers in phones, accelerometers) can have sub-100nm dimensions,
4.
Small series of chips profitable by flexible concept Minimal Fab(bits-chips.nl)
2 points by qaute 6y ago|0 comments
5.
by qaute 7y ago
There are other ways to make PCBs with a 3D printer: Instead of etching copper, some people directly print the circuitry with a solder extruder [1]. The idea's been around for a while [2] but circuit complexity is usually very limited.
6.
by qaute 7y ago
I'll second (third?) LineageOS + microG! Full ROMs combining both are available [1] (OS updates often seem to have to be installed manually, but are supported on popular phones for years). In addition to using everything from the F-Dro
7.
by qaute 7y ago
Lots more detail for the uninitiated: The most complex parts of phones and computers (e.g., the CPU) are integrated circuits (ICs)[0], which are (nowadays) billions of nanometer-sized transistors on top of a piece of silicon. The way these
8.
by qaute 7y ago
To elaborate: A single IC die (a "chiplet" when stacked on others) is made of a layer of transistors and wiring up to several hundred nanometers thick on top of a much thicker (several hundred micrometer) silicon wafer substrate.
9.
by qaute 7y ago
Some other open Slack alternatives I know about include: Matrix[1]: maybe the most impressive. A chat _protocol_ with multiple server and client implementations, gateways to everything, and just out of beta. Zulip[2] (as mentioned), Rocket.
10.
A plan to mine the world’s research papers(nature.com)
114 points by qaute 7y ago|31 comments
11.
by qaute 7y ago
Digital notebooks (Electronic Lab Notebooks --- ELNs) exist, but haven't caught on yet. Many researchers often need to be able to note down arbitrary diagrams, not just text, in real time, which pretty much means low-latency tablet wit
12.
by qaute 8y ago
According to the linked statement from the UC Office of Scholarly Communications [1], "No matter what happens moving forward, UC scholars will still be able to use ScienceDirect to access most articles published prior to January 1, 201
13.
by qaute 8y ago
Usually, CAD programs are written for just one of several domains, outside of which they don't work as well: - Fusion360/SolidWorks/Onshape/Catia/NX are engineering CAD programs. They are designed to make geometrica
14.
by qaute 8y ago
Other well-known 3D printer technologies include: - Fused deposition modeling (FDM): the typical plastic filament-extruding hobbyist printer. Low resolution, but fast and creates very strong parts in one of wide varieties of well-known engi
15.
by qaute 8y ago
This post is very well written! I like the colloquialism, exhaustive list of experiments (both successes and failures, to better educate others), future work and call to action, and a pervasive lack of fluff. In particular, this reads like
16.
by qaute 8y ago
IIRC, Syncthing is decentralized P2P and synchronizes standard tree(ish) filesystems (like most similar projects). Perkeep does away with the filesystem and instead uses a blob-based merkle-tree-like system with good properties for very lon
17.
by qaute 8y ago
A (non-exhaustive) list of hobbyist-accessible engineering CAD programs I can recommend: - Fusion 360 (Windows/Mac) (free for hobbyists) can do complex many-component robots or simple geometric shapes and has facilities for rendering a
18.
by qaute 8y ago
> World-class accuracy of 1.96 meters Good for WiFi/IMU-based indoor (phone-based) position tracking, I believe. For more accuracy, especially for robotics, etc., Pozyx [1] claims resolution of "a few centimeters" (indoor
19.
by qaute 8y ago
"I tried replacing Android with Lineage OS on a old phone I had. Whilst that meant I didn’t have any Google Apps on my device, it was still Android underneath. Also many apps kept complaining that I didn’t have Google services on the d
20.
by qaute 8y ago
"Reservoir computing" taken very literally: wave interference in a bucket of water computed a simple speech recognition task (differentiate "zero" and "one") [1]. [1] https://link.springer.com/c
21.
by qaute 8y ago
> And I'll bet you all my bitcoin the experiment data was not collected during any year from 2008-2012. From the paper, data was collected starting from January 23, 2013 for roughly a year.
22.
by qaute 8y ago
Paper here [1]. Two-photon lithography from Nanoscribe [2] is used to make the color-producing nanostructures. This method can make arbitrary 3D structures but currently has a ~100nm resolution limit and is slow---it's quite possible c
23.
by qaute 8y ago
It's a manufacturing limitation. Integrated circuits are nearly universally built via photolithography [1], which only makes flat 2D layers. Stacking many, many layers for 3D circuits is feasible; building layers on different sides of
24.
by qaute 8y ago
The IPFS [1] is close to this. Websites (and all other resources) are P2P hosted with a distributed hash table. For example, there's an reasonably uncensorable Wikipedia mirror [2]. I don't know what the state of web apps on IPFS
25.
You’re the scooper or you get scooped: How to turn both into something good(journals.plos.org)
1 points by qaute 8y ago|0 comments
26.
From artists to scientists, anyone can have a successful streak at any time(nature.com)
5 points by qaute 8y ago|0 comments
27.
by qaute 8y ago
In fact, the interaction of water movements has good dynamical properties for liquid state machine (reservoir) computing [1] (purely as an interesting demonstration). [1] "Pattern Recognition in a Bucket": https://link.
28.
Where Boys Outperform Girls in Math: Rich, White and Suburban Districts(nytimes.com)
1 points by qaute 8y ago|0 comments
29.
First Lithographically Produced Home Made IC Announced(hackaday.com)
2 points by qaute 8y ago|0 comments
30.
by qaute 9y ago
Related: xonsh ( http://xonsh.org ) It's a Python-based shell that attempts to be somewhat bash-compatible (for ease of use over, e.g., IPython). Instead of making a new scripting language (fish), go all in. Pros: scripting i

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