sllabres

I am not a HIFI/TV aficionado, but the ACR [1] thing was new to me.

I hope it is not yet important for me as I never allowed a TV access to my LAN/WLAN. But with smart devices using accessible open WLANs to transmit who knows.

[1] https://arxiv.org/abs/2409.06203 / https://arxiv.org/pdf/2409.06203

The sensitivity When I play with phypbox [1] there is a sensitivity in the µT range. From the web page [2] the device build has a 0.1 nT resolution and 50 ppm absolute accuracy.

[1] https://phyphox.org/download/

[2] https://alexmumm.de/pgProtonMagnetometer_en.htm

I think, not from the surface, but have a look here [1], where the author referenced from the IIEE article has build a submergible sensor and detected (a know) boat.

[1] https://alexmumm.de/pgProtonMagMarine_en.htm

Space shuttle had five.

Four of them operating in a redundant set and the fifth performing non critical task, as descripted in [1]. The fifth is also programmed by a different contractor in a different programming language: #1-4 running the Primary Avionics Software System (PASS) programmed by IBM in HAL/S and #5 programmed by a different team of Rockwell International in assembly. [2]

[1] https://people.cs.rutgers.edu/~uli/cs673/papers/RedundancyMa...

[2] https://ntrs.nasa.gov/api/citations/20110014946/downloads/20...

I think only the Grand Tour program was possible every 175 years: From Wikipedia [1]: "that an alignment of Jupiter, Saturn, Uranus, and Neptune that would occur in the late 1970s would enable a single spacecraft to visit all of the outer planets by using gravity assists."

Gravity assists with more than one planet are more frequent. Cassini-Huygens [2] as example had five (Venus, Venus, Earth, Jupiter, Saturn)

I would suspect when the goal ist only to leave the solar system as fast as possible (and don't reach a specific planet) they are much more often.

[1] https://en.wikipedia.org/wiki/Grand_Tour_program [2] https://en.wikipedia.org/wiki/Cassini%E2%80%93Huygens

If you are (obviously) interested in the matter you might find one of the Bell Labs articles discussed on HN:

"Why Bell Labs Worked" [1]

"The Influence of Bell Labs" [2]

"Bringing back the golden days of Bell Labs" [3]

"Remembering Bell Labs as legendary idea factory prepares to leave N.J. home" [4] or

"Innovation and the Bell Labs Miracle" [5]

interesting too.

[1] https://news.ycombinator.com/item?id=43957010 [2] https://news.ycombinator.com/item?id=42275944 [3] https://news.ycombinator.com/item?id=32352584 [4] https://news.ycombinator.com/item?id=39077867 [5] https://news.ycombinator.com/item?id=3635489

And the (early) availability of well made library, LibTIFF by Sam Leffler. I used it extensively from 1995 on, but only found out that according to Wikipedia is dates back to 1988!

I don't want to be petty, but there is no 'winter time', only standard time and summer time or 'daylight saving time'.

I first heard the term 'winter time' when it was discussed to decide weather to keep DST permanently or if people would like to keep 'winter time' always. And of course who would want to have winter-something always. ;)

A nice collection of die shots is on Fritzchens Fritz [1] on flickr

[1] https://www.flickr.com/photos/130561288@N04/albums/721576504...

Look around where the camera is:

https://maps.app.goo.gl/1xod6tQmdjNPnsda8

If you have to mirror synchronously the _maximum_ distances for other systems (e.g. storage mirroring with NetApp SnapMirror Synchronous, IBM PPRC, EMC SRDF/S) are all in this range.

But an important factor is, that performance will degrade with every microsecond latency added as the active node for the transaction will have to wait for the acknowledgement of the mirror node (~2*RTT). You can mirror synchronously that distance, but the question is if you can accept the impact.

That's not to say that one shouldn't create a replica in this case. If necessary, synchronize synchronous to a nearby DC and asynchrone to a remote one.

For sure we only know the sad consequences.

From the talk of Samuel Jacques: Timeline for RSA-2048 at about 2088 (conservative extrapolation) or ~2052 (Moore’s‑law‑style growth)

You are right. I'm not working myself on these systems but they are often still called with their older name here due to the frequent renaming...

Regarding the processor: yes the processor spare is new to the Power11 but features like "Processor Instruction Retry" and "Alternative processor recovery" are older. Here are documents describing the feature for old 8284-22A (S822 with Power8 CPU) [1] or even older 8204-E8A (System Power 550 with Power6 CPU) [2]

[1] https://www.redbooks.ibm.com/redpapers/pdfs/redp5098.pdf (topic 4.3.4 and 4.3.5) [2] https://www.redbooks.ibm.com/redpapers/pdfs/redp4404.pdf

For those who have asked who runs this system: Power systems today run either "AS/400" aka iSeries, IBMs traditional Unix (AIX) or Linux (RedHat or SuSE).

In addition to the technical parameters mentioned in the article (an IBM Red Book would certainly provide more):

From what I know from conversations, SAP users are a large customers base for Power systems. I think the size of the possible main memory might be one reason, persistent main memory [1] could be another, in my opinion. But this feature is not new, it was available at least with Power 9. The systems are available with up to 64 TB memory (I don't know if all this memory would by available for one process, but from what I have read at least 32 TB is) and that seems to mix well with SAP HANA.

Another reason is licensing. LPAR partition is considered hard partitioning for Oracle databases, which makes licensing much easier and, in many configurations, also more cost-effective. [2]

Then there are several RAS features. Think of: if one core of a processor in a x86 server dies, your server dies. This is not the case in the IBM Power environment. These days many customers are happy with horizontal redundancy, but not all are equal.

[1] https://community.sap.com/t5/technology-blog-posts-by-member...

[2] https://oraclelicensingexperts.com/oracle-licensing-virtuali...

Yes. The code (of the last unsolved part) will be auctioned off, not the sculpture itself

What a effort. I did something similar for some pens and different inkjet colors a long time ago, but not nearly as broad or as methodical. The inkjet inks (especially red) were already blown after a short time (>4 months). But black still holds up 20 years later till now, only a little bit faded, so one can see the tracks of each row.

Foils (laminate or adhesive foils) or protective spray (UV) did not change the result at all. But one film tore and gave the whole thing an interesting, crackle-like appearance. However, the colors all faded in the same way, whatever protective used compared to direct exposure to sunlight.

Show what queries are send to the search engine (by other users) right now

It's not a mile deep, but I think the depth isn't the problem here:

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

A lot of work, but with success as reward! Makes you wonder how easy or difficult it will be in 30 years to 'recover' data from today.

I was quite moved by the blog post and the brief explanation. That someone found the time to talk to you is good. Even though we don't know each other, I think of you.

From personal experience I would always recommend an output of how many retries were necessary, if one expect zero. Otherwise the retry loop can hide a problems like an unreliable service or network until it's too late.

List of Workshops at Oberwolfach [1] and the comprehensive Oberwolfach Photo Collection [2]

[1] https://www.mfo.de/www/schedule/2025/workshop

[2] https://opc.mfo.de/list_years_grouped and https://owpdb.mfo.de/list_persons

What a impressive project and great results! Thanks for sharing here on HN.

this usage of the decimal separator is not a German thing only [1] and globally not very consistent.

One third of the world seems to use ".", the other third "," and the others decides with own rules or have own symbols. (Space, "'" and "·" and "_" in many variants).

[1] https://en.wikipedia.org/wiki/Decimal_separator#Conventions_...

Pressed the "end" key on the keyboard and won ;) thanks

(Top speed: 127351 km/h)

If one prefers a web page instead of a classical FTP download directory:

https://streaming.media.ccc.de/38c3

They operate several different networks for voice communications during the events. From what I found usually DECT, SIP, GSM. [1] They have a status dashboard with metrics during the events. [2]

[1] https://events.ccc.de/2024/12/22/38c3-poc-isdn-version/

[2] https://dashboard.eventphone.de/d/de7sgxz63vzeoe/38c3?orgId=...

I have once used a airtag to track a parcel. This is now 3 years ago and despite several low batt warnings since about a year ago its still running. So even wit the tiny cell battery the runtime can be quite long.

This was a site with good content and whenever there was a link pointing to AnandTech I knew there was something interesting to discover.

Thanks for all the good work!

A long time I used two small consumer cameras mounted on a rail side by side and combined the two photographs on my TV (which was 3D capable with simple passive goggles), which produced quite nice 3D photos.

Triggering the two cameras was completely manual but worked almost all time, even when taking photos objects in slow motion, as example people o animals.

For this part of photography experimenting it is a bit unfortunately that all TV builders abandoned the 3D capability of their TV sets.