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Joined 2 years ago
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Cake day: March 5th, 2024

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  • From my perspective this “pinnacle of human ingenuity” is actually a farse, because it relies on a monoculture and is therefore unsustainable in the long term.

    Don’t get me wrong, the engineering is cool and I understand how important the mass production of food has been up to this point in human history, but there is another side of the story. The advent of machinery like this is part of why modern farmers use so many pesticides, herbicides, and fertilizers - a monoculture depletes the soil of its nutrients and decreases natural pest control, necessitating the use of chemicals. The use of those chemicals has in turn driven huge ecosystem changes that we are only just beginning to understand the impact of (such as mass pollinator die-offs, changes to soil microbiology, pollution of fresh water sources, pollution of cropland soil, and more) as well as impacting humans in ways we don’t understand since some of those chemicals make their way into our bodies.


  • Plaidboy@sh.itjust.workstoScience Memes@mander.xyzpHun
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    7 months ago

    If the buffer says 7.5 and it makes up 6 when mixed, either far too little of the buffer was used/there was already something else buffering the solution or the buffer was prepared incorrectly.

    By selecting the correct buffer and the correct ratio of salt to acid (such as acetic acid and sodium acetate) an exact pH within a certain range can be reached.









  • Maybe RFK really is just meaning vaccines when he says “environmental contaminant,” but couldn’t he mean microplastics or PFAS or PCBs or any of the other extremely common, poorly understood (in terms of health effects) actual environmental contaminants?

    This article takes a very narrow view of the topic in my opinion. The point is well taken that the recent increase in reported numbers does not represent a sudden spike, but there is a serious conversation to be had about the potential link between pollution and autism. From the article:

    Zoe Gross, director of advocacy at the Autistic Self Advocacy Network, said some initial studies have suggested an association between autism and environmental factors such as pollution, but she was unaware of studies “demonstrating a causal link between the two.”

    Demonstrating a causal link takes a lot of effort! Just because there isn’t a clear causal link doesn’t mean there isn’t an important association. And because some pollutants (like PFAS) are so widely distributed that they are in rainwater pretty much worldwide, you can’t find an “unpolluted” control group, so proving that they are causing health impacts is doubly difficult. The way RFK talks about it is dumb but the topic itself is worthy imo.