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Joined 1 year ago
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Cake day: July 19th, 2023

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  • octoperson@sh.itjust.workstoMildly Infuriating@lemmy.worldThis Captcha
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    1 year ago

    Most pictures lack snow. You’d expect the interior of a room to lack snow. Lack of snow alone does not communicate anything unless it’s in a context where you’d normally expect there to be snow.

    If I was a visual designer, and I was tasked with providing a picture to represent warmth, I might choose, I don’t know; hands in mittens clutching steaming mugs of cocoa, a cat snoozing in front of a roaring fire, or what else? Welcoming light shining from the windows of a house in a snowy landscape! If I submitted a nondescript photo off of a real estate listing, and said “look bro! No snow”, I’d be looking for a new job.


  • Only number 3 conveys the concept of warmth to me. A wintry scene contrasted with orange tinged light visible through house windows is a classic trope to evoke warmth and cosiness. The interiors are undoubtedly a physically higher temperature at the location of the photographer, but that is not being communicated visually by the picture.

    What “of one type” means, I have no clue.
















  • The cat is moving in a circle, so it has a centripetal acceleration and a centripetal force. At the apex of the loop, that force is the sum of gravity, and resistance from the track. The track force is greater than or equal to zero, so acceleration due to gravity is less than or equal to the total centripetal acceleration.

    g ≤ v²/r
    So,
    r ≤ v²/g

    Taking top speed of a cat as 8.278m/s (from Wolfram Alpha), and g on earth as 9.81m/s², this gives us r ≤ 6.99m. So long as the cat can maintain its top speed all around the loop, it can successfully do a loop of up to 14 meters diameter. This is a lot bigger than I expected, to the extent that I suspect some flaw in my reasoning.