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this post was submitted on 28 Feb 2025
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I don't understand what it shows. Instead of forcing me to make up some crazy shit, could someone explain it to me?
I think its just a circular logarithmic representation of the universe starting at Sol
I've recently learned Americans don't do log tables in high school.
Log is the opposite of exponent, so log2 is the opposite of squared, log 3 the opposite of cubed. log4 opposite of x^4 etc
instead of making things relatively bigger, you're going the other way and making things smaller, in the diagram this means that if the sun's size is 1 unit, under log2 it would have to be twice as big as the sun to be represented as the same size as the sun, the closer you get to the edge the bigger it has to be to be represented as the same size as the sun
Not sure what Americans? It was absolutely part of our curriculum.
ah apologies. I take it back, then. Someone told me wrongly, obviously.
Log was absolutely a part of my American high school math curriculum, and while it may not make its way to everyone, many if not most Americans were exposed to it in school. But people have terrible memories when it comes to what they leaned in school, doubly so regarding math, quadruply so regarding higher-level math. Regardless of their level of educational exposure to math concepts, I certainly don't expect the average American adult to be able to reliably do any math they learned outside of elementary school, myself included, because after a few decades of not practicing, not even thinking about those concepts, that knowledge is almost certainly gone or at least covered in a very heavy mat of mental cobwebs.
The further you look in the sky, the further back in time you are looking as well -- there is no way to see what far way looks like "right now". This image shows the visible universe as it appears from our perspective in spacetime, which necessarily smears together the "where", "what", and "when" of it all, but also shows the evolution through time of some of the larger structures.
The tendril things that converge into single celestial objects are clouds of gas condensing to form galaxies and clusters over billions of years.