Going to leave this gem here:<p><a href="https://www.vttoth.com/CMS/physics-notes/311-hawking-radiation-calculator" rel="nofollow">https://www.vttoth.com/CMS/physics-notes/311-hawking-radiati...</a><p>Black holes are weird because they are <i>essentially</i> macroscopic particles with only one variable, mass (ignoring angular momentum, charge and other details for the moment). But they scale very strangely.<p>For instance, its interesting to see what a black hole is like that emits precisely 100W of radiation. Or that is as big as a apple, or weighs as much as a apple. Or one that lives exactly 100 years, or that is as dense as water (as black holes have the odd property of getting less 'dense' as their mass grows). Its very unintuitive, and just punching values into the calculator illustrates it perfectly.<p>I bring this up because the illustration (a town sized black hole sitting over New York) is a very specific configuration, and it doesn't really illustrate how oddly these objects scale.
In Sweden, they actually have a permanent model of the solar system in the scale of 1 to 20 millions. The sun is the size of the Globen arena in Sweden capital Stockholm. Models of the outer planets are somewhere in the north of Sweden!<p><a href="https://en.wikivoyage.org/wiki/Sweden_Solar_System" rel="nofollow">https://en.wikivoyage.org/wiki/Sweden_Solar_System</a>
For some reason, I think this video will show up in my recommendations.<p>Not gonna click the link to see what happens. I'll come back here later to tell
This video is informative but so strangely "ugly" somehow, like it looks like 1997 Stargate SGI cg or something, I can't put my finger on it. Was this all created by one person or a whole company?