• 0 Posts
  • 20 Comments
Joined 1 year ago
cake
Cake day: June 30th, 2023

help-circle





  • Women are not really relevant to what the actives are trying to do so they are obviously not bringing them up at convention or not this video helped me understand why an elementary schooler might actual know what we find a new leak in our ceiling and we also need to secure a cat sitter to the firehose of content that a massive social media platform brings.



  • According to the story I heard as to the origin of the “no liquids over X amount” rule, years ago there was a terrorist that tried to smuggle hydrogen peroxide and acetone - which can be used to rather easily synthesize triacetone triperoxide (TATP, a highly sensitive explosive) - onto a plane in plastic toiletry bottles. They got caught and foiled somehow, and then the TSA started restricting liquids on planes. This was in the immediate aftermath of 9/11, if I recall correctly.

    And I happen to know, from a reliable source, of someone who accidentally made TATP in a rotary evaporator in an academic lab. So it seems plausible.

    Not that the rule is actually effective prevention against similar attacks, nor that the TSA even knows what the reason is behind what they do at this point, haha. I just thought it was an interesting story.





  • I have an Astell & Kern SR25 MKII DAP (digital audio player) and I use it quite frequently. The sound quality far surpasses what my phone can produce when connected to any of my speakers or headphones.

    It plays FLAC files and any other audio file type you can think of. And it acts as an offline music library when needed (64 GB of memory plus a 1TB microSD).

    The better the headphones/speakers I use, the more it outshines anything coming out of my other electronic devices. I use it almost every day.



  • If a ‘Wheel of Time diehard’ includes someone in the middle of their 6th reread, then I guess I contradict your assumption. I thoroughly enjoyed the 1st season, even with its minor flaws, and predict the 2nd season will be even better. I generally enjoyed the plot deviations and saw them as improvements.

    If anything, a WoT fan that is honest with themselves should a) be able to overlook minor flaws, since the books have plenty, especially book 1 and b) realize that plot deviations are a must because an at most 8 season series cannot follow all of Jordan’s arcs and details faithfully - combine, rearrange, and cut is absolutely required.

    To me, the heart of the story is there, the characters are well-acted, and the music is great. Sets and writing were good in season 1 with some room for improvement, IMO.

    I am actually pleased that you think the world-building “borrowed bits and pieces of different Earth cultures and threw them in a blender.” That’s completely intentional and follows from the metaphysics and history (e.g., the Age of Legends and subsequent breaking of the world) in the books. It might not be everyone’s cup of tea though, sure.

    Finally, with a small sample size of friends and family I am having a much easier time getting them into WoT than I did GoT (the last fantasy show I really got into). Reasons (I am paraphrasing their words) include:

    More accessible color pallette and atmosphere

    Less gratuitous violence (especially towards women)

    More magic and “fantasy” feel

    Refreshingly not a standard medieval setting

    Being able to share it with more people in my circle has obviously enhanced my enjoyment. They are all super pumped after seeing the season 2 trailer.


  • You are saying that sucralose (or a metabolite thereof) could alkylate DNA - and theoretically proteins too - correct? Like what sulfur mustard gas does?

    I did a quick search and couldn’t find any papers demonstrating a mechanism of action for that, although I skimmed a few that postulated that a dichlorinated hydrolysis product might be the true carcinogenic agent. Do you know of any studies that demonstrate that the alkylation can happen, either in vitro or (ideally) in vivo? Or maybe some better search terms to use, that could be my issue…

    I am truly curious about this, I never knew the chemical structure of sucralose until I read your comment and subsequently looked it up.


  • Nickel or iron would be a lot cheaper and could get the job done with some tweaking, good suggestion. I’ve done aromatizations of cyclohexene derivatives with sulfur in the past that have been pretty high yielding too (which is why I mentioned it), and bubbled the hydrogen sulfide gas through bleach and other aqueous oxidants to prevent stench. Sulfur is dirt cheap, but it was used stoichiometrically.

    As you say though, the biggest step forward was already done by this group - switching feedstock to biomass. I hope to see more and more of this type of research to deliver on the promise of ‘green chemistry’, which in my past experience has been used as a label somewhat dubiously just to make a journal submission stand out.



  • Very interesting articles - both the phys.org one and journal submission it describes. I appreciate the research group’s use of solvent-free and one-pot reactions wherever possible, it really shows their commitment to finding the most sustainable overall process.

    The aromatization steps using palladium (0) are of course standard processes used by the oil refining industry, but I wonder if there are other methods (maybe using sulfur?) that don’t involve the use of rare metals…probably wouldn’t have the same atom economy as using catalytic Pd though, I am just curious rather than criticizing their choice.