Operate the argument
Instruments
Each answers one question: you set the conditions, it computes, and it says where its number came from. Each is a model, labelled as one, never a recording of nature.
Light quanta
Whether light gives up its energy in whole pieces, and what the wave description keeps when it does.
Continuous waves explain purely optical phenomena.- Give every resonator its share, and the total never stops growing.
Where Wien's law holds, and where it stops.- A spectrum has an entropy. Compressing it costs the same way a gas does.
Independent configurations and the gas analogy- The radiation entropy law matches the gas entropy law.
Stokes's rule and the single-quantum energy budget
Brighter light, more electrons. Higher frequency, faster ones.
Threshold frequency sets the bound. Absorbed energy counts the ions.
Brownian motion
Whether a visible speck in still water is being shoved by molecules, and how far it should travel if it is.
Special relativity
What it takes to set two distant clocks, and what follows once you say precisely what that means.
- How do distant clocks agree on a time?
- The same relative motion, two accounts of one current.
Simultaneity is relative; moving bodies contract.- Build the map, don't receive it.
A moving clock loses time.
Speeds do not simply add.- The field equations keep their form.
Fields transform together, not as separate realities.
Frequency and direction transform together.
A packet of light does not transform like a rigid material body.
Moving mirror reflection, Doppler shift, and radiation pressure energy balance.
Charge density is frame-dependent, while total charge is invariant.
Force conventions and dynamics of the slowly accelerated electron.
Before the coordinate map: optical model comparisons
Compare arm times, moving-water drag and wave equations. These explanatory previews use modern calibration; reviewed historical datasets and strict 1904 modes remain in preparation.
Mass and energy
What survives when one body's energy is written down twice and subtracted.
Across more than one paper
These reach across the papers rather than serving one argument, so a reader arriving from any of them is in the right place.
In preparation
Still being finished, and listed so the gap between what the edition plans and what it has finished stays visible:
- Three routes toward a molecular number. (a preview page exists)