Anybody willing to lend a hand?

AllForOne

AllForOne

Illustrious
I am not expecting anybody to respond to this, but with how dead the OBD is right now, I feel like its worth a try to ask to see if somebody is willing to take this on.

Basically, I'm pretty ignorant, and I want to try to learn how to read mathematical equations so that I can try my hand at some specific calculations. But to do this, I will need somebody who can break it down to me step by step as well as answer my questions.

If anybody helps me (no matter how much or how little) I will be extremely grateful. If not, it doesn't matter. I just figured this would be preferable to going back and taking long algebra courses. (I was always ass at math)

In short, just looking for somebody who wants something to do and has the time to spare some wisdom.
 
Goth Boy

Goth Boy

King of the losers
V.I.P. Member
Pronouns
She/Her
I used to be good at math untill High School where improvisation became the most important part of it, I would always use the wrong method to solve a part and then have to do everything all over again.

Like damn, I went from 100/100 on math tests to 80/100 so quickly
 
AllForOne

AllForOne

Illustrious
Goth Boy said:
I used to be good at math untill High School where improvisation became the most important part of it, I would always use the wrong method to solve a part and then have to do everything all over again.

Like damn, I went from 100/100 on math tests to 80/100 so quickly
Click to expand...
American education, amirite?

Irradiance said:
Like battleboarding calculations?
Click to expand...
Yes. It's always seemed so cool to me.
 
Irradiance

Irradiance

Slightly Above Average
You mean how to calculate luminosity-based feats? Like lighting up the galaxy or stuff like that?
Way to start with the one thing I don't know that well lol Ages since I did one of those.

Gonna orientate myself on this. If you want an easier time ya can really simply use that calculator.
Anyway
Step 1: Pick the appropriate apparent magnitude value from here. I.e. pick the value corresponding to the object that is as bright as what ya wanna calc. So, if something makes things as bright as day, then the apparent magnitude is as bright as the Sun when seen from Earth, which is −26.832.
Step 2: Figure out how far your light source is away. So, if it is lighting up a galaxy that might be the galaxies radius. Let's take the Milky Way's for that: 13400 parsec. If the unit you find isn't in parsec already, convert it to such.
Step 3: Plug the values into this formula 10^(( apparent magnitude + 5 - 5*log10 ( 13400 ))/-2.5) * 3.0128 * 10^28
So in our example 10^(( -26.832 + 5 - 5*log10 ( 13400 ))/-2.5) * 3.0128 * 10^28 = 2.9240170414457745e45 Watt
(I can recommend this calculator btw.; log10 means the logarithm base 10)

Your result is in Watt i.e. Joules per second. We usually just use 1 second worth of the energy as AP, I think, so that would be 2.9240170414457745e45 J

To get the result in Tons of TNT divide the joules value by 4.184*10^9:
2.9240170414457745e45 / (4.184*10^9) = 6.9885684546983138145e35 Tons of TNT
To get the result on FOE divide it by 10^44 instead:
2.9240170414457745e45 / 10^44 = 29.240170414457745 FOE
Solar System level
 
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