08 — Exotic vertical physics

Concrete physics for two vertical applications: wildlife (through-foliage) and maritime (through-bulkhead). Other verticals (R14 empathic, R16 healthcare, R17 industrial, R18 disaster, R19 livestock, R20 quantum) are vision/spec only — only R10 and R11 have computable physics demos.

Scripts

Script	Thread	Vertical	Headline
r10_foliage_attenuation.py	R10	Wildlife sensing through foliage	ITU-R P.833-9 attenuation. ESP32 sparse-foliage range: ~100 m at 2.4 GHz (later corrected to ~70 m by R6's Fresnel-clearance consideration). Per-species gait taxonomy (8 species).
r11_maritime_propagation.py	R11	Maritime / ship-cabin sensing	Steel skin depth 3.25 µm at 2.4 GHz → through-bulkhead impossible. But slot diffraction works: cabin door with 2 mm gasket gap = +31 dB SNR margin. Through-seam, not through-bulkhead.

What R10 (wildlife) enables

• Solar-powered ESP32 nodes at forest edges
• Through-foliage detection at ~70-100 m range
• Per-species gait classification:

Species	Stride frequency
Bear / sloth / wild boar	0.5-1.5 Hz
Human walking	1.2-2.5 Hz
Deer / fox	1.8-4.5 Hz
Squirrel / mouse / songbird	4.0-15.0 Hz

The gait taxonomy directly extends to R19 livestock (cattle 0.6-1.2 Hz, pig 1.0-2.0 Hz, etc.).

What R11 (maritime) enables

• Man-overboard surface detection at ~200 m
• Through-seam crew vitals (lone-watch monitoring)
• Container tamper detection via 30 mm vent slots
• Hatch-seal integrity audit (predictive maintenance)

What R11 rules out:

• Through-hull submarine sensing (steel impassable)
• Underwater sensing at WiFi bands (saltwater 853 dB/m)

Composition with privacy + federation chain

Both R10 and R11 use:

• cog-wildlife or cog-maritime-watch packaging (ADR-100)
• Cross-installation federation (ADR-107 + ADR-108 PQC)
• Per-installation embedding spaces (R3 + R14 privacy framework)

For wildlife the privacy framework is largely moot (animals don't consent); for maritime the crew-consent framework applies.

See also

• Research notes: docs/research/sota-2026-05-22/R10-*.md, R11-*.md, plus R16-R20 verticals (vision-only)
• Composes with: 01-physics-floor/ (forward model), 06-structure-detection/ (PABS for predator-detection / container-tamper)