A single line of seismic recording, giving one vertical slice through the subsurface.
Closely spaced lines yielding a full image volume rather than isolated slices.
The most common analog output signal range for process control instrumentation. The milliamp signal represents a physical process measurement such as pressure, level, etc.
Engage, explore, explain, elaborate, evaluate — a sequence for inquiry-based teaching.
The classic deep induction array — six coils, focused, on a 40-inch nominal spacing.
A framework breaking inclusion into components that can be worked on separately.
