Notices by Brian Ó (blacksam@social.gibberfish.org), page 45

Aluminum centipede.

#diy #hvac #hrv #aluminum #recycling #upcycling

https://www.vice.com/en_us/article/ywaqbg/collapse-os-is-an-open-source-operating-system-for-the-post-apocalypse

#collapseos #electronics #operatingsystems #postapocalypse #z80

Stage one of the heat exchanger build. These cans will be glued end-to-end to form an thin aluminum conduit. Fun fact: You can cleanly remove the top of a beer/soda can with a regular can opener!

#diy #hvac #hrv #aluminum #recycling #upcycling

I'm still working out my CO₂ issues in order to grow oysters, but meanwhile I got a decent second flush of lion's mane.

Thanks to the new meter, it's now apparent that the CO₂ levels in my house are actually worse outside of the grow room, since that stays largely unoccupied with the door closed. Yesterday my son's room broke 2000 ppm while he was playing there. Regardless of its suitability for mushroom growth, that's not a healthy environment to live in for the next 7-8 months. I think I'm going to try putting together something like this to see if it can make a difference.

#mushrooms #lionsmane #co2 #ventilation #hvac #hrv #diy

Tremendous.

#trump #maga #childrensbooks

I hate it when TV shows make me keep watching them. I made plans today, motherfucker.

Interesting. Why are North Dakota, South Dakota, and California the only names that are Germanicized? I mean, "North Carolina" and "South Carolina" aren't. How does this happen?

#usa #maps #language #german #deutsch

Here's another complementary design:

Water + Miracle Gro + a little algae scraped out of a fish tank + air + sunlight = future CO₂ scrubber.

Just needs a few days to get green.

#algae #photosynthesis #co2 #diy

Republicans are clearly in trouble in Burlington; they just elected a gay teenager as their party chair. This, plus the fact that the chair was vacant for a year, tells me that absolutely nobody else wanted the job. What a sad bunch they must be.

Also, a little background from the article about their new Führer leader:

While a student at the high school, he was petitioned and criticized by students for using a Hindu swastika image as the profile picture for his school email. He told the Burlington Register in May of 2017, that he posted the image to teach students about its history.

He sounds like a real gem.

#vermont #republicans #edgelords #maga

YES!

https://youtube.com/watch?v=IwHOAhhMINs

#leomoracchioli #lizzo #metal #cover

I got my CO₂ meter AND the soda lime last night, so I was able to build and test the scrubber. I put them under and inverted fish tank, and over the course of 20 minutes the CO₂ level dropped from 1148 to 691 ppm. I wanted to get to bed, so I didn't let it run longer, but I expect it would have continued to drop. Now the real test is to see if it can keep the CO₂ below 1000 ppm inside my fruiting tent, which is currently at about 1400.

I have the meter connected to a raspberry pi which is sending the readings to grafana, so I'll be able to chart the results and hopefully at some point automate the scrubber.

#mushrooms #co2 #chemistry #diy #raspberrypi

#hair

Amber Guyger accidentally walked into her neighbour's home and shot him dead as he ate ice cream.
Ex-Dallas officer gets 10 years for killing unarmed neighbour
#Police #UnitedStates #US&Canada #Racism

It’s probably ignorance of British politics on my part, but as far as I can tell the parliament chose Boris Johnson as their leader and then immediately blocked everything he promised to do. What was the point of that, exactly?

#UK #brexit #politics #borisjohnson

I remember not so long ago reading an article (perhaps in response to The Martian) lamenting that one of the things sci-fi always gets wrong are form-fitting space suits. Those are not possible, it said, because of pressurization blah blah blah. Now, just a few years later this is already in development:

Whoever the author was, they've now joined a long line of people who said some concept or another was impossible only to be proven completely fully of shit. Basically, naysayers can suck it.

#scifi #space #sciene #nasa #technology

#MAGA

https://youtube.com/watch?v=CLxpgRqxtEA

#gretathunberg

Great job, humans!

https://youtube.com/watch?v=cqECNYmM23A

#kurzgesagt #ants #insects #invasivespecies

They oyster mushrooms haven't turned out well. They're not supposed to look like this :(

The consensus among mushroom growers is that this is due to an excess of CO₂ in the fruiting tent. Mushrooms respire CO₂ as they grow, and they can essentially choke themselves on their own gasses in a closed environment. Oyster mushrooms are especially sensitive to this.

The traditional solution is to push lots of fresh air into the tent and/or vent the stale air out. There are a couple of problems with this, in my case:

1. I'm growing in a basement room, and my house is largely closed up for winter. This means elevated CO₂ in the ambient air. Pushing that into the tent might not help as much as real "fresh air" would. Soon, my only source of "fresh air" will be sub-zero.
2. Pushing fresh air drops the humidity, which is also an essential factor for proper growth, so my fight to keep CO₂ down will directly harm my fight to keep RH up.
3. I'm already pushing a gentle flow of air 24x7 with a small fan. Apparently this is not enough, possibly because of problem # 1.

So, I was thinking of experimenting with CO₂ scrubbing. If I can't get enough fresh air in to flush out the CO₂, maybe I can just remove the CO₂ from the standing air. Saltwater fish keepers already use small CO₂ scrubbers on the air intakes of their skimmers, to avoid dissolving atmospheric CO₂ into the water (thus lowering the pH due to the creation of carbonic acid). All that's required is a small canister of soda lime granules (as used by SCUBA and medical re-breathers) to cycle the air through.

Commercial units look like this, but it's really just a water filtration canister with a refillable insert. I can get that online for ~$25. So, I'm inclined to give it a try. The only thing that gives me pause is that I can't find much evidence that anyone else has tried this before, and there are people with much more intelligence and experience out there than I possess. If it's effective, I'd expect it to be a more commonplace solution. What do you guys think?

#mushrooms #fungi #carbondioxide #CO₂ #CO2 #saltwater #reefkeeping #corals #chemistry

Amanita muscaria guessowii spore print. Abe Lincoln for scale.

#mushrooms #fungi #amanita