Three mechanisms explain sword spark straightness: axial field
concentration at the leader tip, directional thermal pre-conditioning
of gas ahead, and cold-air confinement restricting lateral breakout.
Connects to the "too long ramp" regime where forward bias disappears
and branching returns. Prompted by external reviewer question.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Catalogs what is known (radial expansion, buoyancy, electron/ion drift,
ion wind) vs unknown (net axial flow under AC drive, tip gas dynamics,
acoustic signatures). Prompted by external reviewer question.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Steve Conner's "short bursts outperform long bursts" finding was
presented adjacent to QCW's lower epsilon without clarifying these
are different comparisons. Now explicitly scoped: peak power advantage
is within-mode (burst vs burst, threshold effect), while QCW's lower
epsilon is cross-mode (leader vs streamer plasma type).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
These were matplotlib-generated images from the course build,
not part of the expert knowledge base.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>