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Very interesting approach! Question: How do you deal with environmental noise and unexpected flux from nearby devices?


Magnetic fields drop off quickly with distance, so I would presume this noise is quite low unless you are picking up magnets or working close to large powered coils.


> Unlike marking only on the surface of a 2D piece of paper or magnetic tape, this method of encoding uses two optical dimensions and three spatial co-ordinates to write throughout the material - hence the ‘5D’ in its name.

Ummmmm.......


I guess wavelength and polarization of light? (I guess I have no idea how that's even possible to encode into a crystal, but it's two optical dimensions I suppose.)


Yeah. That and

> a revolutionary data storage format that can survive for billions of years

Clearly it hasn't been verified to be able to survive for billions of years, but it is thought to be able to survive for billions of years based on extrapolation from tests done over time scales multiple orders of magnitude smaller.


Diamonds are forever, but they fare poorly when they meet a hydraulic press (source: Hydraulic Press Channel) or a chemist who wants "real diamond water" (source: NileRed).


Many many moons ago I connected a pickle to a 10kv transformer - in that case at least it was definitely the result of arcing :)


This is really quite laughable! What kind of adversary, that would elicit the deployment of these types of resources, would have their critical security infrastructure connected via wifi??


They're probably close to being able to do pretty advanced real-time visualization using wifi. Several articles describing the techniques have been posted numerous times on hn. This could be the first step necessary to having basically a wallhack from counter-strike.


Probably the FBI, going by recent reports of their sloppiness? ;)


I absolutely adore this series of videos! Analog/mechanical computing is a fascinating field that is often ignored.

Also the pedagogical style of these videos is fantastic, simple, to the point, with no unnecessary distractions. It's hard to find this level of quality in the current 'click and subscribe' universe!

Happy to see this pop on HN :)


A similarly interesting video in this pedagogical style is 'Around The Corner - How Differential Steering Works (1937)': https://www.youtube.com/watch?v=yYAw79386WI


Another archaic technology is magnetic amplifiers. These were more used in Germany (in the Kriegsmarine and also in the V-2), but got some more play in the US immediately after the war, before being largely supplanted by transistors.

The idea here was to use magnetic saturation to modulate the behavior of a transformer, allowing a small control current to modulate larger AC currents.

https://en.wikipedia.org/wiki/Magnetic_amplifier


the current 'click and subscribe' universe!

The audience for this film was heavily advertised to, in order to get them to subscribe:

https://fr.wikipedia.org/wiki/Fichier:Untitled_%282%29World_...

And if that didn't work, many were simply coerced into it by the state. You don't need to pester a captive audience to smash the like button.


This is very well polished! Obviously took a lot of hard work and it shows in the results. Well done!

Question: I see the that the code for the examples can be pulled from github, but I don't see anywhere to download the text of the book for offline reading??


Tangentially related is the yearly Graphème publication from Smallest Functional Unit.

It's a curated collection of experimental music scores; part art magazine, part avant garde musical journal, and thoroughly delightful :)

https://smallestfunctionalunit.bandcamp.com/merch


It never fails to amuse me that the "exciting" things that Microsoft does to Windows always falls into one of two categories:

1. Implementing features that have been available in Linux/MacOS for years

2. Adding interoperability capabilities

I'm happy Microsoft is slowly catching up with the times, but it's still not a good look


> I'm happy Microsoft is slowly catching up with the times

If that includes web pages as GUI, then I'm NOT happy.

I wish Linux would catch up to Win3.1 GDI32, COMCTL, MFC & OLE.


Don't forget,

3. Pushing you towards paid MS SaaS tools (prominently OneDrive)


I really enjoyed the pictures, but that's an incredible amount of baseless speculation!

For all we know these 'devices' were ancient board games who's sole purpose was entertainment!?


This article explains a theory of how yupana worked

http://www.mathematicsmagazine.com/Articles/Yupana.php


Thanks! we've changed the link to that from https://cacm.acm.org/blogcacm/technical-marvels-part-3-the-y... above.


Thank you for posting an article worth reading :)


This sounds like a variant of the argument that the "ceremonial items" that are most likely dolls and other toys made for kids.


There seems to be a category of "archaeologist" that likes to explain artifacts they don't understand as being ceremonial or religious, because they can't think of any other explanation, and without having any information about what the ceremony is, or how the religion is supposed to work.

I take such claims to mean simply "We have no idea what this artifact is for; it might as well be something magical, for all we know".


You may enjoy Motel of the Mysteries by David Macaulay which pokes fun at what you’ve mentioned.

>”It is the year 4022; all of the ancient country of Usa has been buried under many feet of detritus from a catastrophe that occurred back in 1985. Imagine, then, the excitement that Howard Carson, an amateur archeologist at best, experienced when in crossing the perimeter of an abandoned excavation site he felt the ground give way beneath him and found himself at the bottom of a shaft, which, judging from the DO NOT DISTURB sign hanging from an archaic doorknob, was clearly the entrance to a still-sealed burial chamber.

Carson's incredible discoveries, including the remains of two bodies, one of then on a ceremonial bed facing an altar that appeared to be a means of communicating with the Gods and the other lying in a porcelain sarcophagus in the Inner Chamber, permitted him to piece together the whole fabric of that extraordinary civilization.”


Sounds a lot like the research regarding the Nacirema:

https://en.m.wikipedia.org/wiki/Nacirema


I guess you are in some category yourself because you seemingly haven't read the large amount of literature about a global shamanistic culture, and archaeologically there is plenty of evidence that divination came before games.

Its natural, because games based on chance give us the feeling of being "hot" or "cold" ie able or unable to predict entropy.

MMI is a burgeoning science but if you're curious there is a group out there with access to QRNGs that practice influencing probabilities. And there is a small, but measurable effect size. And even not so small in some experiments I have personally seen, but being funded by Rockefellers means keeping your nose pointed away from the control grid.


Do you have examples of such items that were found close to kids, but, as you claim, miscategorised?


I don't have a primary source, but have seen articles similar to these links that mentions the toy to religious object classification overlap (with almost the same pull quote):

https://www.sciencenews.org/article/ancient-toys-kids-archae...

https://www.bbc.com/future/article/20220816-the-worlds-oldes...

There's a lot of guesswork involved in the field, I would think?


Hi zdw, do you know why the url was changed?


Well I'm pretty sure they have some evidence to support that claim, especially considering they can directly link the word to the meaning "count". Do you always just assume science is wrong?


Please don't cross into personal attack, no matter how mistaken another commenter is or you feel they are.

https://news.ycombinator.com/newsguidelines.html


> Well I'm pretty sure they have some evidence to support that claim [...]

> article: To this day, it is unknown how the Incas worked with these calculators. There are several hypotheses about their use [...]

It appears, that there are people who have formed hypotheses, but apparently no consensus...

---

> article: The mysterious tablets were apparently suitable for all four basic arithmetic operations: addition, subtraction, multiplication, and division.

Many objects are suitable for numeric calculation (technically any object), just looking around my room I see a cupcake pan and a chess board -- the chess board being a little more useful for doing 8-bit binary arithmetic, but if I combine it with the cupcake pan I can add a dedicated shift register which makes mult/div a bit easier :)

--- Your continued quote from above:

> [...] especially considering they can directly link the word to the meaning "count".

Yes, because as we all know - words in any given language only have a single meaning! 8P

> Do you always just assume science is wrong?

Last time I checked; jumping to a conclusion using a minimum of evidence isn't scientific.


Did you read the cited articles or are you basing your assertions only on this Web article? There might be a lot of detail on the evidence in the cited articles which are just not mentioned here.

It's somewhat ironic that you throw around a speculation that everything is speculated without actually trying to look at the possible evidence yourself.


> Did you read the cited articles or are you basing your assertions only on this Web article?

I did not read any of the cited articles!

> There might be a lot of detail on the evidence in the cited articles which are just not mentioned here.

I'm sure there is, but the linked article gave me no impetuous to read them; nor any guidance as to the most efficient order of consumption.

> It's somewhat ironic that you throw around a speculation that everything is speculated without actually trying to look at the possible evidence yourself.

something, something, Cunningham's Law


I'm happy this invention is still in the news cycle after the initial announcement 10 months ago...

[0] https://news.ycombinator.com/item?id=36958531

[1] https://news.ycombinator.com/item?id=36993411

[2] https://news.ycombinator.com/item?id=36951089

While I'm fairly dubious about the proposed dual-purpose structural implementation of this material -- if this works at scale it would be a boon for low cost DIY local energy storage in the developing world and remote areas in other places.

The idea that someone with minimal education/training can construct a durable electrical storage solution using commonly available materials and techniques is an absolute game changer!!


- "Low-cost additive turns concrete slabs into super-fast energy storage" (2023) https://news.ycombinator.com/item?id=36964735


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