That’s a super interesting project. For anyone else, the project overview has some great system level diagrams:

https://github.com/opentraffic/otv2-platform

time for some kind of anonymizing location data sharing service, peer to peer or federated protocol? that might be interesting, or sketchy, not sure which.

Pretty sure you can download the maps ahead of time, GPS doesn’t require data, then upload the fixes when you get home.

Go map keeps crashing for me, does it for you?

I’ve been using Go Map! but it keeps crashing… Maybe I’ll try Streetcomplete if it’s on apple.

Crawling and indexing lemmy inter-instance would be an incredible boon to discoverability on the platform.

Do it! it is easy to do at home! Just wear some gloves and safety glasses, those jars can easily shatter during the heating process if you use too hot of a heat source. I recommend a glass top electric stove, or put some kind of metal plate between your jar and the burner to help spread out the heat. Once you seal the jar, take it off the heat right away, so it doesn’t build pressure. I boiled mine for a few minutes before sealing to try and get some of the devolved gasses out, and lightly set the lid on top to help the steam push out all the air.

It does. And Firefox is my default browser app.

Yes definitely. The pressure will drop along the vapor pressure curve all the way to the triple point, gently boiling all the way if you remove the heat from the vapor and not directly from the water.

Anything for posterity

Exactly. it was bottled at atmospheric pressure while it was boiling, so 1 atm and 100 degrees C. Check this graph to see the relationship between the water’s temperature and it’s pressure in the jar (since there is no air, only water vapor). If the vapor is condensed, then the pressure drops below the curve on the graph, that is, the pressure in the jar is lowered below the vapor pressure of the water. Any time the pressure is below the vapor pressure, the water will boil, releasing vapor, until the pressure is equal to the vapor pressure. The pressure does not become negative, it is still positive, just lower than the vapor pressure at the given temperature. You can get below the vapor pressure curve by changing the temperature too, which is what we usually do when boiling water at a pressure near 1 atm (760mmHg)

http://hyperphysics.phy-astr.gsu.edu/hbase/Kinetic/watvap.html#c2

(1 atmosphere is ~760mmHg)

a slight aside, there is an important difference between the total pressure of the air, and the partial pressure of water vapor in the air. Inside the jar, the two are equal, but in a dry location (not humid) the partial pressure of water vapor is usually less than the vapor pressure of water at that temperature, but since the total large pressure of the atmosphere would not allow a pocket/bubble of very low pressure water vapor to form inside the bulk water, the water cannot boil, but it will evaporate at the surface anyway until the partial pressure of water is equal to the vapor pressure (very humid).

I hear you, but genetic change at the level of these diseases and traits can take on the order of hundreds of thousands of years or more to accumulate into meaningful trends. Social society is a part of that process, in the way it might be for other social animals. If social dynamics tend to result in communities harboring vulnerable individuals, then there is probably some selective advantage to that behavior, not the other way around.

This is a common misconception. These traits are not likely due to modern medicine (which is very, very new compared to the scale of human evolution). The environment plays a big role, but there is always a distribution of traits in a normal population, some good, some bad. Not to mention that what we might be self-selecting for must change very rapidly as civilizations rise and fall, preferences shift like the winds, and ethics rapidly evolve. I think this misconception can be dangerous, because of what you mentioned. Eugenics.

The internet is a series of tubes.

I decided to give it a try over the weekend on a road trip, through the apps Organic Maps and Go Map!! I really liked Go Map!! except that it crashes occasionally, and won’t restart until your reinstall it :( loosing all the GPS tracks and unsubmitted data :(( If it was more stable, I’d recommend it to everyone.

For me, it usually only takes a few seconds. Do a search, wait, and then try refreshing the page. It’s usually populated within 10 seconds or so.

Also check out lemmyverse.net for a comprehensive collection of instances and communities. After you find one you like, copy the link into your home instance search, wait a second or two for the result to appear (or refresh after a sec) and then you can subscribe to new communities.

Discoverability is something youtube’s alogrithm really gets right, and something lemmy, or the fediverse in general, just sucks at right now.

looks like https://lemmyverse.net/ is doing a decent job with indexing at the moment. I do honestly feel that indexing should take place on every instance, since each instance has a unique position in the network, and the indexing parameters/ranking algorithms could be under per-instance control rather than an outside third party.

It’s a really good point. It’s both the algo and the creators the keep us there.