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Cake day: July 3rd, 2023

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  • LonelyWendigo@lemmy.worldtoScience Memes@mander.xyzthe internet
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    7 months ago

    someone’s self awareness of the limitations of their own knowledge and willingness to defer to experts.

    This is a cornerstone of ethics in engineering and many other discipline that I feel is being shouted down daily by a crowd that clearly never took a philosophy or ethics class. Even among engineers it seems to be an increasingly unpopular attitude. It seems to have become popular to praise the braggart and shun the ethical self aware.





  • Clyde Butcher is one of the greatest American landscape photographers since Ansel Adams and a true hero of modern naturalism. Not only does he hike out into the swamp under conditions that would make most here wilt like cotton candy in the rain (see other comments), he often does it with camera equipment that is ancient, heavy, and bulky by today’s standards.

    The biggest danger in the Everglades isn’t leeches (not at all common), brain eating amoebas (just keep your head above water), snakes (most would rather just slither away), snapping turtles (only aggressive when trapped), or gators (generally slow, predictable, dumb, and avoidable); it’s ignorance. The swamp isn’t a place into which you’d want to be dropped off unprepared and unequipped, but neither is LA of New York City. Clive Butcher walks the line between tough man and sensitive artist, cottage-core and goblin-core, Lorax and Crocodile Dundee.

    Clive Butcher also did a landscape photography series of Salvador Dali’s home town that really opened my eyes about the scenes and settings in many of Dali’s paintings. It becomes clear that although surreal, many of the landscapes in Dali’s paintings are actually surprisingly real places painted literally but adorned with surreal characters and objects.





  • I sick of seeing Google Drive recommended as an alternative to dropbox. (Because I am looking for an alternative to dropbox and so far nothing has feature parity with it and the features I value.) If an app forces me to be logged in to a graphical environment locally on Linux then it has already failed to understand why people use *nix. Google Drive doesn’t keep offline copies and it doesn’t work on CLI. So basically useless on my server. If the files aren’t natively and transparently accesible as a local filesystem while they are synced to the cloud, it’s not a viable Linux Dropbox alternative. I want my files on my machine and a copy on the cloud, not the other way round.


  • Yes, I thought I was very clear that I was explaining my rationalization for why Fahrenheit is my preferred arbitrary system for a specific use case. Fahrenheit is arbitrary and centered around human existence. Celsius is also arbitrary and centered around the phase changes of water. I made no mention of season because again, that is totally arbitrary, not universal, and depends wholly on geography. The only temperature scale that even gets close to trying to not be arbitrary is Kelvin, but I don’t see you bullying for it’s everyday use.


  • Because of its scale, Fahrenheit works better for describing the temperature as it relates to people and how comfortable or dangerous it is. Celsius obviously works better for science and engineering. Both systems are arbitrary and either will work once your used to them obviously. Fahrenheit is anthrocentric. Celsius is centered around the phase changes of water at a standard (arbitrary) pressure. The only temperature scale that approaches universality and attempts to not be arbitrary is the Kelvin.

    Fahrenheit is my preferred scale when dealing with weather and heating/cooling my home because with Fahrenheit, you can describe almost the entire range of normal human experience from freezing to death to burning to death with (almost always) only two digits and no sign change. If you see an extra digit or a negative sign on the Fahrenheit scale you know shit just got real. And as for the numbers in between 0-100, you can conceptualize them as a simple decimal range like we do for lots of other statistical things like movie ratings, school/exam grading brackets, political polls on TV, percentages, etc.


  • Stacks of particulate stuff like sand and grain tend to act a like a fluid when stacked or piled in containers like a silo. You don’t feel the pressure in the deep bottom of a pool only from the top, you feel it from every direction as pressure. The mass of grain in a silo pushes against the sides almost as much as down. Think about what would happen to the grain if the silo were magically removed in an instant. It would spread out into a larger diameter pile. This is how we can store things in a silo without absolutely crushing the stuff at the bottom into dust. The science and math behind why it happens is complicated and beyond my ability to better explain this early in the morning, but I’d guess that balloons in a silo would behave similarly. The pressure on the ballons experiencing the most forces would be coming from all sides, like the pressure differential you feel when diving in deep water. That pressure would tend to decrease the volume of the ballons, possibly making them less likely to pop. At a certain point you’d just have big celled foam made of latex rubber and you’d be crushing that.





  • It’s not as if the Schwartzchild radius is a physical boundary though; it’s just the event horizon, a mathematical definition. If you were free falling into a black hole you might not even notice when you passed through it. The black hole is still a singularity and speaking about it’s density this way is absurd. (I mean absurd in the way it makes no sense, not as an insult to you personally.) These concepts of density at the local physical level and cosmic level are very different.