Fundamental Equations for Each Field

[Silavite]

If you had to pick one equation as fundamental for a given field, which would you pick and why? For example, I think that it would be reasonable to say that F = ma is the fundamental equation for dynamics and ΣF = 0 is the fundamental equation for statics.

The field can be as broad or as specific as is desired. Families of equations (such as the Navier-Stokes equations for fluid mechanics) are acceptable but discouraged.

[StrandedonEarth]

V=IR

[JoeSchmuckatelli]

Two Wrongs Don't Make a "Right"?

 

(Sorry, PoliSci/Law background)

 

[StrandedonEarth]

9 minutes ago, JoeSchmuckatelli said:

Two Wrongs Don't Make a "Right"?

 

(Sorry, PoliSci/Law background)

 

But three rights make a left! (Sorry, amateur navigator background)

[NFUN]

∇•E=ρ/ε

G=8πGT/c⁴

∇xE + ∇xB = εμ∂E/∂t - ∂B/∂t

 

dunno QFT or QED so can't give good equations for particle fields or anything

[kerbiloid]

17 minutes ago, NFUN said:

G=8πGT/c⁴

1=8πT/c⁴

T=c⁴/(8π) 

 

[KSK]

Tillage + seed + irrigation + time = food.

Depending on your field of course.

[Nuke]

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Edited March 16, 2022 by Nuke