There is a new process for treating wastewater sludge that destroys the microfibers, so that is good news at least. I think it may be expensive, of course. It is called “hydrothermal carbonization”. Basically put the sludge in a giant pressure-cooker and the heat breaks the plastics into carbon and some water-soluble residual molecules which can go back to the start of the wastewater treatment plant to be biodegraded. But like others say, the main source in general is tires - not sure if they know whether tire microplastics are the main source in agricultural land though.

From the immortal Journal of Irreproducible Results, “The Data Enrichment Method”: “. . .its principal shortcoming is that before the enrichment process can be started, some data must be collected. It is quite true that a great deal is done with very little information, but this should not blind one to the fact that the method still embodies the ‘raw-data flaw’. The ultimate objective, complete freedom from the inconvenience and embarrassment of experimental results, still lies unattained before us.”

fwiw, this story is also covered here, imho a more credible source: https://www.aljazeera.com/news/2024/2/1/palestinians-demand-international-inquiry-after-mass-grave-found-in-gaza

gotta admit, that is a lot safer approach than trying some shit on the real thing

https://i.pinimg.com/originals/36/37/42/36374294e5183a96de3e3e6696f4d3ad.jpg

top slab is about 230 or 240 pounds. Wood base is only about 15 or so; light. I made no attachment between the concrete and the wood - just gravity.

In that case, Krasnodar and Rostov to Ukraine as buffer zones - maybe Belgorod and Kursk too?

I think there was a time when he could have apologized for a dumb mistake and everyone would have moved on. It is world news now because HE chose another and unfortunate path - which probably has no route back to the sunlit lands.

Engineers describe heat transfer with a “heat transfer coefficient”, and the rate of heat transfer is this coefficient multiplied by the temperature difference. So you can calculate what the heat transfer coefficient must be by measuring room air temperature initially, water temperature initially, and then running your system for a little while and measuring the room temperature again. The smaller room area you can cool the more accurate this will be. You will need to look up heat capacity and density of air (easy to find), and the temperature change of the air with the volume of the room and the temperature change will together give you an amount of heat you removed from the air to the water. Simple!

at 9000 feet deep, the pressure is 273 atmospheres or 4100 psig - they never knew what hit them.

Long ago, I was a midshipman on a submarine. The crew LOVED to watch submarine disaster films - with water spraying in all frothy and fire-hosey. But the reality would be a flooding time measured in fractions of a second, in most cases - people are not used to dealing with pressures in the tons per square inch except at the nozzle of pressure washers where the flow is tiny. So, on the bright side, most submarine failure deaths are quick ones.

this inspired me to paper over all my old comments and posts with clippings from random washington post articles from today. A labor of … love

In view of comments about restoration of deleted data, I had a look at the user agreement for NON EEU and it says "When Your Content is created with or submitted to the Services, you grant us a worldwide, royalty-free, perpetual, irrevocable, non-exclusive, transferable, and sublicensable license to use, copy, modify, adapt, prepare derivative works of, distribute, store, perform, and display Your Content and any name, username, voice, or likeness provided in connection with Your Content in all media formats and channels now known or later developed anywhere in the world. This license includes the right for us to make Your Content available for syndication, broadcast, distribution, or publication by other companies, organizations, or individuals who partner with Reddit. You also agree that we may remove metadata associated with Your Content, and you irrevocably waive any claims and assertions of moral rights or attribution with respect to Your Content. tldr; they do not have to honor content deletion in the US. But I feel better that I deleted it, maybe it will be a little bit of pain to restore it. I will go back occasionally and re-delete if neeeded.

he is not wrong about moderators being like “landed gentry” in a lot of cases; but on the other hand the blackout already did the damage. Time will tell if he is dead-man-walking, but I already deleted all my content (posts and replies) and unsubscribed from all. Some people may feel angst that the blackout did not “win”, but it was a very useful occasion to focus on the reddit phenomenon and recognize our commoditization. I had been glad to contribute content, but if reddit is going to <do what they did> then I am done. That is all the win I need. I will contribute it here (lemmy servers) instead.

I built it to fit some glass that was about the right size, so not really a design others would emulate precisely. But a standard sheet of galvanized sheet metal is about three feet by six feet, so four 10-foot boards will nicely make the “box”. I used 1x2 for the corner bracings (just glued and screwed), window frames, and dryer trays. I had made an earlier version with a sheet of translucent corrugated roofing for the lid, and that heated up quite well, too. The legs were just some scrap - I think the angle of the box should be around 45 to achieve some natural convection and good mid-day sun collection area. But it could vary with one’s latitude I suppose - in a more northern clime (I’m at 20N), a more vertical “cabinet” might work - the dryer trays would be shallower, but convection would be better. I am not sure the vent stack makes any difference.

I rotated 90 right and the picture was 180 from OP, so I rotated back 90 left and tadaa:

I tried disabling Privacy Badger - that sometimes interferes - but no help

I guess, but cannot tell for sure; I did not rotate the pic from the time I took it until I posted. One can “preview” a post, but once you click preview you cannot back up to make edits (at least with my configuration - Firefox on Ubuntu Linux) - browser back button does not work. A mystery!

yes, a vent stack; it helps air flow. There are three two-inch (5cm) holes at the bottom end to admit air. An earlier iteration of this design had screens over the holes to keep critters out, but it turned out to not be an issue so we have not screened the holes on this unit.

We saw a design for a solar dryer popular with Peace Corps volunteers - a heat-collector box with a small dryer compartment on top and three little trays in a stack. But I thought, why not put the dryer trays right inside the heat collector? I just checked the temperature and with partly-cloudy skies, it is 50C in the box.

maybe there is a way to rotate images, but I have not yet discovered it; sorry about that. It looked OK as an original. Once you preview, it is not possible to edit? I am noob.