- Brown and Pooley(as the developers of the dynamical approach to relativity)
- Two philosophers (David Wallace and Oliver Pooley) who developed a specific theory about how relativity works by focusing on the physical behavior of measuring instruments rather than abstract mathematical properties.
- Dynamical approach(as a method for understanding relativity)
- A way of explaining something by looking at the actual physical forces and laws that make it behave the way it does, rather than treating it as a basic, unchangeable feature of reality.
- Lorentz-covariant dynamical laws(as the type of laws that explain how rods and clocks behave)
- Physical laws (like those in Einstein's relativity theory) that work the same way for all observers moving at different speeds—they have a special mathematical property called Lorentz covariance.
- Rods and clocks(as the tools used to measure spacetime in relativity)
- The imaginary (or real) measuring instruments that physicists use to measure distance and time—rods measure space, clocks measure time.
- Spacetime geometry(example of a mathematical structure)
- The mathematical description of how space and time are shaped and connected—for example, Einstein's theory says gravity actually curves spacetime like a rubber sheet.
- Trackers(as the role rods and clocks play in relativity)
- Things that reliably indicate or measure something else; in this case, rods and clocks that successfully measure the shape of spacetime.
- comportment(Used by black American republican thinkers to highlight the role of character in sustaining race-based domination)
- The bearing, attitudes, and character exhibited by members of a dominant group, here white Americans, as a constitutive element of racial domination