Difference between revisions of "Talk:2520: Symbols"
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Why are partial derivatives considered graduate-level? They're typically covered in first level undergraduate science courses, along with gradients and such. [[User:FPSCanarussia|FPSCanarussia]] ([[User talk:FPSCanarussia|talk]]) 03:34, 25 September 2021 (UTC) | Why are partial derivatives considered graduate-level? They're typically covered in first level undergraduate science courses, along with gradients and such. [[User:FPSCanarussia|FPSCanarussia]] ([[User talk:FPSCanarussia|talk]]) 03:34, 25 September 2021 (UTC) | ||
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+ | The reference to "micrometer" links to the Wikipedia page for the measuring device, but it should link to the page for the unit of length: https://en.wikipedia.org/wiki/Micrometre [[User:Professor Frink|Professor Frink]] ([[User talk:Professor Frink|talk]]) 15:58, 25 September 2021 (UTC) |
Revision as of 15:58, 25 September 2021
Great work by whomever did this, but is it possible R_e is something else? I agree that the numerical aspect makes it seem like a fluid mechanics problem, but I've never seen the Reynolds number with a subscripted e... only a regular size e, such that it is Re, not R_e. 108.162.237.93 20:36, 24 September 2021 (UTC)
- R sub e (not Re) is Effective Reproduction Number. This is related to infection rates. I'm pretty sure it's R sub e, not Re given that infection rates are very much on his mind right now.
- It would be out of place relative to all the other entries, though, which are all physics related. IMO it's more likely this was an error.
- Earth's radius is abbreviated "R sub e" 162.158.107.4 21:30, 24 September 2021 (UTC)
- Could be the remainder of a series (i.e. the error when using the first terms of the series as an approximation). Determining upper bounds on this error is usually very tedious.
- R sub e is tire effective rolling radius (or effective radius)--a radius based on the distance traveled by one rotation of a pneumatic tire. Re is similar to the unloaded radius (for radial tires) and normally larger than the loaded radius (distance from axle to ground).
T to the fourth power looks like blackbody radiation, any ideas what specifically that formula represents? 162.158.203.22 20:40, 24 September 2021 (UTC)
- There's an equation for what reflects off a spherical object that is a quartic equation (although I'd expect concave reflectors, not convex ones, to risk skin-burn. Or, more likely something to do with UV (non-)absorbtion or generation, but I imagine someone knows exactly what it is, without someone like me just guessing wildly. ;) 141.101.99.82 21:05, 24 September 2021 (UTC)
This wiki does not seem to have a consistent formatting structure for lists
The NA could also soon become NAN (not a number) thus being only a step away from the dangerous arthmeric error. --162.158.88.43 21:38, 24 September 2021 (UTC)
Bold Title
- Content starting with a tab
- Bold title content continues on same line
- Regular title
Content on a new line, but not starting with a tab
As well as tables and mixes of these formats. Maybe someone should pick one and apply it to all the explanations. I just noticed it because of the inconsistencies as people are quickly throwing something together for this new comic. 162.158.107.4 21:02, 24 September 2021 (UTC)
I read the penultimate line as "Mg" and was trying to imagine a meaning for "megagrams per kilogram". Sloppy Greek letter there, Randall. Nitpicking (talk) 03:17, 25 September 2021 (UTC)
Why are partial derivatives considered graduate-level? They're typically covered in first level undergraduate science courses, along with gradients and such. FPSCanarussia (talk) 03:34, 25 September 2021 (UTC)
The reference to "micrometer" links to the Wikipedia page for the measuring device, but it should link to the page for the unit of length: https://en.wikipedia.org/wiki/Micrometre Professor Frink (talk) 15:58, 25 September 2021 (UTC)