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lormayna

1,497 karma · joined May 28, 2014

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lormayna··on A laser-based process that enables adhesive-free paper packaging
Close where I am living (Tuscany) there is a small industrial district focused on adesive paper production. I had sent this link to a friend of mine that is working as plant manager for one of those.
lormayna··on The 'paperwork flood': How I drowned a bureaucrat before dinner
In Italy, in the past people starts paying tickets that they think unfair completely in coins. The government had to introduce a maximum amount that you can pay in coins to protect the employees that otherwise will spend day on counting cents.
lormayna··on Italian prosecutors seek trial for Amazon, 4 execs in alleged $1.4B tax evasion
As Italian, I really disagree. The only entities that pay all the taxes are employees because the taxes are collected directly from the salaries.

Big companies have the opportunity to make tax elusion (there is a reason why many Italian companies have legal HQ in Netherlands or Luxembourg), small companies, artisans and freelancers usually avoid to pajly VAT

lormayna··on Italian prosecutors seek trial for Amazon, 4 execs in alleged $1.4B tax evasion
> while a part is decided by the political side

Now, roughly one third of CSM members is nominated by the Parliament and the other one is elected by judges, according to the "correnti" (a sort of parties)

lormayna··on Italian prosecutors seek trial for Amazon, 4 execs in alleged $1.4B tax evasion
> The government is pushing for a constitutional amendment to help "fix" this feature. There is going to be a referendum on the change very soon.

Italian here. It's not like that: the referendum is about definitely enforcing the career separation about public persecutor and judges. Actually they are under the same authority and the member of this authority are elected according to a sort of political parties (unique case in the whole EU) and this creates some distortions in career growths and nominations. The new schema will create two different authorities and the members will be selected according to a ballot.

A similar proposal was made by the left wing parties few years ago, when they were at the government

lormayna··on Italian prosecutors seek trial for Amazon, 4 execs in alleged $1.4B tax evasion
In Italy, if you are charged of tax evasion, you need to demonstrate that you are not evading. It's called "inversion proof"
lormayna··on Ask HN: How many of you hold an amateur radio license in your country?
I do, IU5RQT from Italy
lormayna··on Raspberry Pi Pico as AM Radio Transmitter
Please use an appropriate filter for the band that you are transmitting, otherwise you will pollute all the near frequencies with spurious.
lormayna··on Luce: First Electric Ferrari
Nothing against EV, but a full electric Ferrari is almost a profanity IMHO.
lormayna··on A novelist who took on the Italian mafia and lived
> And it's particularly funny that Borsellino is now in the "saints" category, when he was explicitly namechecked by Sciascia himself in the newspaper column that originated the term "anti-mafia professional".

If you read the original article from Sciascia [1], you can understand that he was complaining about the risk of judge appointments drived by anti-mafia positions, more than competence.

> Saviano, however, is just a specialized journalist.

If Saviano is only a specialized journalist, why is invited in many public talk-show where the topic is different from Mafia?

[1] https://www.archivioantimafia.org/sciascia.php

lormayna··on A novelist who took on the Italian mafia and lived
It's not about the year of birth, it's about the role. Saviano creates his own career with mafia and now is acting as opinionist to any other option (i.e. now about the constitutional referendum that "will enforce the mafia").

Falcone, Borsellino, Livatino, Don Puglisi (just to mention people that paid with their own life) fight heavily against mafia, but they never converted this fight in a career.

lormayna··on A novelist who took on the Italian mafia and lived
Saviano is exactly one of the "antimafia professionals" that Sciascia complained about.
lormayna··on Europe’s next-generation weather satellite sends back first images
Is there any info about the modulation/encoding/frequency? It would be great to have an open source decoder for RTL-SDR like we have for NOAA or METEOR.
lormayna··on Building a Real-Time HN Display for $15
Why not using MQTT? A Lambda that fetch new comments from HN, parse them into Markdown and push into MQTT; the ESP only needs to subscribes a topic on MQTT and render the messages.
lormayna··on Killing the ISP Appliance: An eBPF/XDP Approach to Distributed BNG
I have been worked for a regional ISP 10 years ago and having an architecture like that one, would be a godsend. With centralized BNGs we were not able to apply upstream QoS policies for subscribers on the backhaulings and we had to apply policies on DSLAM access ports.

We ended using a couple of cheap Mikrotik as PPPoE concentrators for every access room, in a similar way as you did. But the reliability of Mikrotik routers was not the best

lormayna··on A decentralized peer-to-peer messaging application that operates over Bluetooth
> In rural areas and using low frequencies, I believe they can even be larger than GSM.

In Europe GSM is going to be dismantled. And techniques like beamforming and radio resource management reduce the power consumption for 5G base station and phones.

> No, the last CDMA based cell standards were 3G/UMTS and the Qualcomm equivalent (CDMA2000 or what it was). From then on, it’s all been OFDM.

Even if 5G is using more advanced modulations like OFDMA or NONA, the concept is the same if you compare the with FM used by walkie talkie: those are modulations way more effective in term of energy and information effiency than a traditional FM transmission

lormayna··on A decentralized peer-to-peer messaging application that operates over Bluetooth
1) LTE frequencies are in the frequency intervals 600—900Mhz, or over the Ghz. Higher frequency means smaller antennas.

2) 5G cells are small and very dense, this means less power consumption.

3) LTE and 5G are based on CDMA, a technology that is way more efficient in term of bandwidth efficiency than the FM modulation used by a walkie talkie

lormayna··on A decentralized peer-to-peer messaging application that operates over Bluetooth
On a similar situation, someone try Meshtastic and it works great

https://old.reddit.com/r/meshtastic/comments/1qd2z97/mestast...

I doubt that BLE can propagate well over a cruise ship.

lormayna··on A decentralized peer-to-peer messaging application that operates over Bluetooth
A walkie-talkie requires a big antenna and consume a lot more power than a cellphone.
lormayna··on Command-line Tools can be 235x Faster than your Hadoop Cluster (2014)
For a dasaset that live in RAM, the best solution are DuckDB or clickhouse-local. Using SQLish data is easier than a bunch of bash script and really powerful.
lormayna··on Ask HN: What did you find out or explore today?
This is probably one really fascinating projects, but there is no AI behind this kind of things. It's just randomly trying new configurations and select the best ones in an evolving way.

During my master degree, I attended an antenna design course and I almost burnt my laptop trying to optimize a dipole array as a side project.

lormayna··on Project SkyWatch (a.k.a. Wescam at Home)
That's really interesting. One of my unfinished projects it's a system that take input from ADSB data and from a microphone and get a picture of a flying aircraft (I am living under the approaching path of a regional airport)
lormayna··on Ask HN: How are you doing RAG locally?
I have done some experiments with nomic embedding through Ollama and ChromaDB.

Works well, but I didn't tested on larger scale

lormayna··on Ask HN: What did you find out or explore today?
I don't know about AI antennas, but smart antennas[1] are a things since more than 15 years. Basically they are array of antennas that can change via software the directivity (mainly used in radar systems) or increase/reduce power transmission and direction (this is used in 5G cell).

1 - https://en.wikipedia.org/wiki/Smart_antenna

lormayna··on The state of Schleswig-Holstein is consistently relying on open source
> Stormshield over Cisco

Stormshield is a very good product but it's mainly designed for industrial scenarios and lacks some features that are essential for an enterprise NGFW (i.e. the protocol inspection covers very few protocols compared to PA/Checkpoint/etc). Unfortunately the enterprise NGFW scenario is dominated by US or Israeli companies, even if some niches brands like Stormshield for OT and Clavister for telcos are Europeans

lormayna··on Show HN: Awesome J2ME
One of my university projects was an encrypted message system via Bluetooth using J2ME. Never worked, but I learnt a lot of things :)
lormayna··on AOL to be sold to Bending Spoons for $1.5B
AFAIK (I am Italian) they have a very long and difficult hiring process, comparable to a FAANG.
lormayna··on Unlocking free WiFi on British Airways
I was in a intercontinental flight few weeks ago and when everyone was sleeping my wife was able to open Instagram and scroll the feed, while other websites were not accessible. I did not have a PC with me, but I immediately guessed about they are doing filtering based on SNI. Appliances like Allot or Sandvine are in this market since more than a decade.
lormayna··on Radios, how do they work? (2024)
Antennas are really black magic: optimizing an antenna requires stocastich method like genetic algorithms, simulated annealing, etc. Moreover if you want to model the radiation patterns and the electrical characteristics you need to use finite element calculation methods. So, you need a lot of computation power as antenna are not a problem that can be solved in a closed form.

Source: I almost burnt my PC on simulating a dipole array while studying for the antennas course at the university

lormayna··on Ask HN: Abandoned/dead projects you think died before their time and why?
* bzr: I always found git too much complex and not really ergonomic. I really liked bzr simplicity

* Rethinkdb: I made some small projects with it in the past and it was easy to easy

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