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Cake day: June 14th, 2023

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  • I torrented and seeded many torrents (its still seeding right now) and it can do at least 2 (havent tried more) jellyfin streams at once as long as I disable server side transcoding to reserve resources. I had the full arr suite of apps running along with ombi (gonna move to jellyseer, but imo ombi used too much ram on my 4GB laptop to be something I kept running). Is it perfect? No, it has quirks that will come up now and again but can I really complain when getting now 16 years of use out of a laptop I never thought I’d touch again once I built my desktop?

    Edit: oh be aware, if you’re using old hardware, DO NOT use the newest versions of things like Linux mint, it possibly won’t have drivers that works for really old hardware (like wifi card, Lan card, etc.) and it won’t be easily apparent sometimes. I solved this with a friend who had the same laptop as me but couldn’t get internet once installing mint. It turns out he used a newer version of mint that did not have a way to support his wifi card and installing and older version solved it



  • You would use materials that perform completely fine at those temps. This could be anything from high nickel alloy steel, to Inconel, to an HEA (high entropy alloy). You can even do high heat resistant metals with ceramic coatings on the inside for protection if creating a passivation layer is too difficult for the application or the exposure environment does not allow for one to form.

    There is an entire subsection of engineering studies focused on purely coaxing specific properties out of a material or developing materials to custom suit extreme applications, known as material science. They generally work very closely with chemical engineers (my background) and metallurgists in order to manufacture the designed product in either batch form, or in continuous fashion.

    I work in a steel mill and we have Inconel furnace rolls that hang out in 1600 F heat 24/7 and are rated (iirc) to ~2300F max operation temp. For reference medium carbon steel melts between 2600 and 2800F, and loses a lot of its mechanical strength well before 2300F (I am trying to find a stress strain curve for carbon steel over multiple temperatures for reference. I will update if I find one)

    Edit: Okay so I found one that does show what I am trying to convey. As you can see, the higher the temperature of the sample material, the lower the yield strength. Example: the 100C sample was strained to >25% before failure, while the 700C sample began to plastically deform (fail) before 10% strain. Take note of the second link, all the test temperatures are MUCH higher than any of the carbon steel samples

    Carbon Steel Curve: https://www.researchgate.net/figure/Stress-strain-curves-at-different-temperatures-for-steel-4509-2_fig11_236341600

    Inconel Curve: https://www.researchgate.net/figure/Stress-strain-curves-of-Inconel-625-alloy_fig11_338984803


  • Yeah, very sadly the chemical industry (and then by extension, manufacturing/maintenance as a whole) is rife with this shit. I hope and pray that young and aspiring chemists/chemical engineers/regulators/safety engineers/etc. will make changes in time that we take harder approaches to shit like this. We put the environment and people first, the “progress” of industry in a close second.

    Regarding what you said about the old guys doing it how they used to. I see that all the time in my steel mill. Lots of older guys (and some younger ones who put off the too cool for school vibe) dont wear earplugs all the time. They havent for the last 20 years, so what is me telling them they will lose their hearing gonna do? They have done it this way, and will continue to do it this way. Luckily, we have had success in general improving our safety culture, but getting people to care about the unseen threats (particulate matter, hearing loss, exposure, etc.) can be very hard


  • To be exact, it is a wt% of the feedstock they are changing. Not the fuel itself. (I am not commenting on the fact that they likely would be exposed to combustion products/uncombusted products).

    From a chemical perspective, it also chemically needs to be similiar to the original feedstock, or else you would not be producing the fuel you want in the correct ratios. These systems are a very complex system of multiple primary reactions + side chain reactions. They are not trying to reinvent the wheel here, they would want the system to behave as close to the same as possible so that they can just apply this in their existing plants.

    IF (BIG IF) they can prove that the waste plastic feedstock does not change the output products of the combusted fuel (included non combusted products, or products of incomplete combustion), this could be a big win for making use of waste plastics, otherwise I have a very sick feeling that this is trending towards the next tetra-ethyl lead event


  • So I wanted to provide a bit of unique perspective here on the topic. I now work as a process engineer in a steel mill, but 2 of my previous positions were in product safety and regulatory compliance. I worked in US, CA, & MX regulatory law, as well as global compliance with countries outside of the Americas. In my position I had to deal with regulatory compliance with chemical lists (TSCA, ECHA, DSL/NDSL, ISHL, etc.) and I was responsible for creating and verifying the information we use to create our SDS sheets.

    So a large part of people are stuck on the fact that there is a lot of redacted information in the paper, this could be for multiple reasons outside of protecting trade secrets. As I stated above, there are regulatory chemical lists. In many countries, it is entirely ILLEGAL to sell or use in manufacturing, any chemicals which do not appear on the list for the country in question. When a company wants to create a new chemical (which is happening all the time, this also can be a “mix” and not a defined exact molecule, ill speak more on this later) its is a very slow and long process of classifying the chemical, getting a CAS number assigned, and then getting this chemical listed on the regulatory lists of the locations you intend to use it/sell it. To get listed on these lists is a process in itself that includes providing absolutely as much information on the chemical as reasonably achievable. From my experience, ECHA (EU) has stricter rules than TSCA (U.S) for example, and not all lists are made equal, governed equally, or even list the same chemicals. So circling back, the feedstock listed in the paper is likely very early in this process or is in the middle of the process, meaning there is not an “official” name or means of identifying what is being spoken about, anything referred to in the paper would just be internal monikers/code names or possibly a nickname to describe it.

    On the topic I said I would speak more about, “mixes” or “chemicals” without a defined chemistry. So there are feedstocks/chemicals/mixes of oils/paraffin materials/alkanes/etc. that are very hard to control the creation of, so they are created as an inseparable bulk mixture. Some Examples:

    -Cas #: 85535-86-0 [C18-28 Chloroalkanes (20-50 %Cl)]

    -Cas #: 97553-43-0 [Paraffins (petroleum), normal C > 10, chloro]

    The “mixtures” are classified based on their properties and what is actually making up that mix defined within the certain Cas #. This is likely how all of the feedstocks in the paper would be classified. Based on certain plastics that are recycled you could expect X, Y, Z, defined blends.

    Finally, regarding the safety aspect. Having been thrown into the world of chemical regulation (I am a chemical engineer by education, we covered the existence of TSCA in like one section of our safety course), I got to see first hand how almost “fly by the seat of your pants” it is. I cannot suggest a “better” way to more safely regulate these chemicals, other than to take an outright strict approach (which I am in favor of btw). Eu for example is much stricter (both health and environmental hazard wise) compared to the U.S. They have a higher burden of proof that the chemical is not harmful and an approach of “okay if it shows signs it could be a problem, classify it as such”, while it sure feels like the EPA takes the approach of “okay, lets see if you guys can keep this from becoming a problem.” Which companies have proved repeatedly, they cannot.