Ooh, cool! 😁 That detector seems to be working only in “Geiger mode”, which means that it can count the number of X-rays/Gamma particles but it does not estimate their energy. So, the dedicated devices are still better in that they allow you to identify the source of the radiation by measuring the counts and the energy distribution simultaneously.

It probably would not be too difficult to build the open gamma detector into something like a pinephone. I don’t think that has been done yet.

My experience with phone zoom has been underwhelming so far, but I would like to check out the Samsung S2x’s 10x zoom when I have the chance!

Still, I really like using binoculars because they transport me next to what I am looking at and do so in very high definition. I do have >100€ binoculars though, colors look very nice through them. I think it will be difficult to replicate via a screen.

Yes. The camera pixels generate a current in response to light. You can add some filters to block certain wavelengths of light (like UV) from getting to the camera sensor, and tune the pixels so that they respond more to to specific colors. But X-rays and gamma rays can just pass through the filter. Often they will pass through sensor as well, but, in the cases that they do get absorbed by the sensor, they can also produce a current that to the camera’s readout electronics looks like other light would.

The gamma detectors I mentioned are very very sensitive. They respond to single X-ray/Gamma ray particles. These detectors can count how many individual particles collide with a small crystal cube every second. These crystals are special in that they produce a very tiny flash of light when an X-ray or gamma particle collides with them. As an added bonus, these sensors can directly measure the energy of the particles by measuring the strength of the flash, and from this information they can construct not only the total counts but also a spectrum. With this extreme sensitivity these detectors can measure small quantities of radiation that come from space, from rocks, and from other materials.

I looked for a video of a phone going through an X-ray machine, and found these:

https://www.youtube.com/watch?v=E8iSoPhtY3s

https://www.youtube.com/watch?v=V1YaroH6lHA

The white specks that you can see near second 25 (first video) and second 34 (second video) could be a result of the X-rays. I am not sure, but it seems reasonable to me. On contrast, when I put my radiacode through the X-ray machine in the airport the radiacode reacts very strongly and becomes saturated.

Radiation detectors. Such as the Radiacode or the Open Gamma Detector.

Binoculars are quite portable, very useful, and phones don’t do a good job at zooming in like that.

Smart watches integrate with phones but the phones by themselves are not so good at measuring the heart rate and other parameters directly.

Mini projectors. UV flashlights. Tools in general… There is so much actually. What type of gadgets are you looking for?

Only those who complete life without believing in a God pass into the next stage of the simulation.

I have used XMPP for some time now and I tried Matrix for a bit, but have stuck with XMPP until now.

I found it practically very easy to set up a prosody XMPP server in a raspberry pi. In XMPP you have the core standard that is kept quite minimal and then you can extended your implementation using XMPP extension protocols (XEPs) in a highly modular fashion. This approach of building on top of a light core using well-documented extensions I like very much.

With Matrix, JSON is used instead of XML. I think that JSON is a nice format when trying to look under the hood at how the message data is structured. XML is a bit of a pain to look at in my opinion. And I think JSON might be more efficient in how it moves the data around. So, that is a big positive for me. But I Matrix appears to be more focused on being feature rich than on having a flexible modular structure. While it does have extensions, successful extensions do have a chance of being eventually integrated into the core protocol. This makes the core feel bloated to me, because I have very minimal requirements.

In terms of security, in XMPP you start with the core and then you select the type of encryption that you like (OpenPGP, OMEMO, etc). OMEMO encryption has plausible deniability built into its design, and for me, plausible deniability is a property that I consider important for messaging. The modular approach to XMPP also means that these are choices that one gets to make in an active manner, and the protocols are open protocols that come from outside of XMPP. With Matrix you get their encryption protocol as part of the core - it is a protocol that they designed and that you need to accept to use their tool with encryption. It is probably a good protocol, but I don’t think it has plausible deniability built in, and that’s a choice you did not get to make.

As for moderation, I don’t know. Do they mean moderation tools, or the actual absence of moderators and unmoderated communities? Because the latter is more a property of the people using the tool that the tool itself. You can have your own private communities.

If someone asks me, I could recommend Matrix but would rather recommend XMPP, depending on what they are looking for specifically.

Snowden’s Permanent Record book was a strong motivator for me.

Ah, bidding technology has advanced since I sniped Tony Hawk Pro-Skater for the Nintendo 64 on ebay. Why start bidding over a week early, though?

I find it strange that they are out-bidding each other like this when there are over 8 days left. I am not too experienced with bidding, but I thought that the normal strategy was to maybe place a placeholder bid if there is no activity, but more generally one waits until the last second to set a reasonably high bid. Going on a 1v1 with fast out-bidding over a week early seems bad for everyone except the seller. Perhaps someone can explain.

Someone needs to explain to Musk how to debug with the JSON so that the ipv6 GUI does not overflow into the git API front-end

Teach me a new tongue twister

Happy to contribute! But, I admit, I should be putting more effort in growing some communities 😅 Thank you for all the effort you put in as well!

Interesting! This rule is new to me. Pretty curious about the ratio for a platform such as lemmy.

3.19K Comments!! You are a super contributor!! You are doing a fantastic job in helping keep lemmy engaging! Certainly not lazy by any metric 😁

No, not at all! As you grow older, it may not be as automatic as when you are in school. Many of the people that you interact with might be focused on their own stuff (work, partner, family, hobbies, finance) and not too motivated to expand or even have a “social life” in whatever free time they have (if they even do). But this is not everyone. There is still a lot of people at every age that do want a social life, you just need to put in a bit of effort to connect with them.

And, a tip, do not consider failed attempts at socializing as a “failure” on your side. Perceived rejection often boils down to people being very attached to their free time, and socializing not being on their list of priorities. If you keep this in mind then you do not need to feel discomfort from rejection, and you can be active in your search for like-minded people without worry.

Even though:

These data are associative and do not establish a causal role for such particles affecting health

I still don’t feel so nonchalant about the idea of microplastics lodging on my brain. While the effect on human brains is very difficult to directly measure, we do have a lot of data on mice that suggest that having plastic in the brain is bad for the brain.

When quickly looking into EU food regulations it seems like microplastic content is not regulated in food, and the logic appears to be along the lines that not enough data is available to assess the actual risk. This makes some sense in that measurement, control, and enforcing limits is likely to be difficult, expensive, and might create some economic challenges, and so regulators might not want to go this route unless proven absolutely necessary.

At the same time, data does exist showing that the plastic levels are increasing in our brains, and we have very good reasons to believe that this is not a good thing. It is not that we are completely in the dark - I am sure some smart people would be able to come up with reasonable limits and methods of control by now.

My not-very-informed suspicion is that there is pressure from wealthy and powerful lobbyists that would significantly suffer from microplastics regulations, because ‘plastic in the brain’ has seemed like an obvious thing to address for some years now.

I have never been educated about how to avoid ingesting / breathing microplastics. Do any of you know some habits or diets that reduce or increase exposure to microplastics?

There is a nice (even if by now already a bit outdated) analysis about the openness of different “open source” generative AI projects in the following article: Liesenfeld, Andreas, and Mark Dingemanse. “Rethinking open source generative AI: open washing and the EU AI Act.” The 2024 ACM Conference on Fairness, Accountability, and Transparency. 2024.

I think that panspermia is the most likely hypothesis to be eventually proven correct.

According to this hypothesis, very simple “living” structures can be found throughout space, scattered around planets, meteorites, and perhaps even in space dust. This dust can be thought of as fungal spores. When they land in a planet with suitable conditions, these systems can evolve into more complex life forms.

The alternatives to panspermia generally imply that Earth is a super special planet in which certain special conditions conspired at a point in time to allow an extremely unlikely event to happen. Panspermia suggests that, instead of a being a statistical anomaly, life is probably rather common throughout the universe.

Ooooh, fascinating!

If they can send me over the second half of my thesis I would appreciate it enormously! 😀

The analytics tools that I am personally uncomfortable with involve dynamic, changing forms of data. I run GPSLogger on my phone (without a SIM card) and continuously log the GPS data to a text file. This data is then synced to my computer when WiFi is available. I can display this data on a map using gpx-viewer, and show very detailed tracking data of myself.

I have explored this map with some friends/family. They get to see a time-stamped movie of my life - my trips to work, to the shop, when I go out, if I go on a trip, etc. The data displayed in this manner is somewhat intimate, personal information. Anyone I have shown this to has said that they would not be so comfortable with such a map of their lives existing… Well, if they are carrying a active phone with a SIM card, it does.

To think that a company like Google can own such a map for a very large number of people makes me uncomfortable. On top of that, each of those map trajectories can be associated with an individual and their personality… They have the ability to pick out specific trajectories on the basis of the political ideologies or shopping behaviors of the personas behind them. This is extreme. I am of the opinion that the convenience afforded by a these technologies does not justify the allocation of that super-power to the companies that enable the technology.

A few years ago Facebook enabled a “Graph search” feature. This allowed users to create search queries such as"Friends of friends of X who like the page “X” and went to school near Z". That tool seemed super cool on the surface, but it quickly became obvious how something like that could be easily exploited. Later on in Snowden’s book I learned about XKeyscore from the NSA, which is like an extra-powerful no-consent-needed graph search that is available to some people. This is not just targeted ads.

I guess that what I am trying to convey is… For me, making the privacy-conscious choice is about not contributing to the ecosystem of very concrete tools that give super-powers to groups of people that may not have my best interest in mind. In my mind it is something very tangible and concrete, and I find many of those convenience tradeoffs to be clearly worth it.