A teaching tape for ME-03, system-boundary energy ledger with cited energy-source cards
the 1906 box
Teaching tape demonstrating that assigning mass m = E/c^2 to the light pulse preserves center-of-mass immobility in the 1906 box thought experiment.
Open ME-03 with these settings
Where it starts
| Setting | Value |
|---|---|
| Box mass M (boxMass) | 1 |
| Box length ell (boxLength) | 1 |
| Pulse energy E (pulseEnergy) | 1 |
| Assign inertia to radiation (assignLightMass) | 1 |
| Displacement magnification (magnification) | 100000000000000000 |
What it changes, and what to expect
Set Pulse energy E (pulseEnergy) to 0.5 changes what the run starts from
Set Pulse energy E (pulseEnergy) to 1 changes what the run starts from
Exact zero center-of-mass shift
Assigning mass m = E/c^2 to the pulse preserves exact rational zero center-of-mass shift.
What the author recorded that a reader should see here. Quantity Expected Under center of mass shift 0 m modern-si-2019
These are the values the tape's author recorded, not a result this page computed. Nothing here runs the instrument. Open ME-03 with these settings: the link opens it with them already in place. Compare what it gives you with what is recorded here. The settings travel in the link and the laboratory reads them as it loads, so without JavaScript it opens at its worked example instead.