RESEARCH BASE

Search 3,721 documents across 34 fields — every claim tier-rated by evidence

3,721 Documents 34 Sections 43,625 Citations 34,852 Keywords Indexed 4 Evidence Tiers

3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.

26 results for "passive sonar" — page 2 of 2

ZE_5_10 Verified Ethics & Applied Philosophy

ZE_5_10 — Ethics of Silence and Complicity: Bystander Problem and Moral Inaction

Moral inaction — the failure to intervene, speak, or resist in the face of injustice — is one of the most pervasive and consequential forms of ethical failure. The bystander effect, famously studied after the murder of K

silence complicity bystander effect moral inaction omission Kitty Genovese

R_4_08 Verified Biology & Evolution

R_4_08 — Echolocation and the Evolution of Sensory Systems

The evolution of sensory systems represents some of the most striking convergent solutions to ecological challenges across the animal kingdom. Echolocation — the ability to emit sound pulses and interpret returning echoe

echolocation biosonar bat dolphin toothed whale convergent evolution

S_3_10 Verified Future Technology

S_3_10 — Ocean Technology and Deep-Sea Exploration

The deep ocean remains Earth's most underexplored frontier — less than 25% of the ocean floor has been mapped at high resolution (>100 m), and only a tiny fraction has been directly observed or sampled. Human-occupied ve

ocean technology deep-sea exploration submersible ROV AUV oceanography

I_2_14 Speculative UAP Disclosure

I_2_14 — Historical USO and Naval Encounters with Unidentified Submersible Objects

Unidentified Submersible Objects (USOs) — anomalous objects observed entering, exiting, or operating beneath water — constitute a persistent but poorly documented subset of unidentified aerial phenomena (UAP). Reports sp

uso unidentified-submersible-object naval-encounters transmedium undersea-anomaly sonar-contact

I_3_20 Speculative UAP Disclosure

I_3_20 — USO Underwater Base Claims & Evidence

Unidentified Submerged Objects (USOs) — anomalous craft or phenomena observed entering, exiting, or operating beneath bodies of water — represent a distinct subcategory of UAP reports that gained significant official att

USO unidentified submerged object transmedium underwater UFO ocean submarine

I_4_03 Credible UAP Disclosure

I_4_03 — USO Hotspots and Underwater Anomaly Zones

Unidentified Submerged Objects (USOs) — anomalous phenomena observed in or entering/exiting bodies of water — have been reported from specific geographic zones with particular concentration since the 1940s. The Catalina

USO unidentified submerged objects trans-medium travel Catalina Channel Puerto Rico Trench Lake Baikal

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BROWSE BY SECTION — 3,721 documents across 34 fields

A Foundations 112 Docs B Beings & Entities 114 Docs C Global Traditions 116 Docs D Sites & Artifacts 116 Docs E Cataclysms & Chronology 109 Docs F Lost Connections 111 Docs G Modern Frameworks 99 Docs H Suppression & Thesis 95 Docs I UAP Disclosure 87 Docs J Ancient Technology 103 Docs K Consciousness 105 Docs L Genetics & Origins 92 Docs M Forbidden Archaeology 103 Docs N Secret Societies 87 Docs O Earth Anomalies 108 Docs P Philosophy & Meaning 104 Docs Q Cosmology & Physics 100 Docs R Biology & Evolution 95 Docs S Future Technology 100 Docs T Psychology & Social 112 Docs U Art, Music & Culture 122 Docs V Mathematics & Information 87 Docs W World Civilizations 140 Docs X Medicine & Healing 126 Docs Y Altered States 108 Docs Z Molecular Biology 112 Docs ZA Physics & Quantum 117 Docs ZB Ecology & Biology 117 Docs ZC Social Science 111 Docs ZD Information & Computation 96 Docs ZE Ethics & Applied Philosophy 99 Docs ZF Oceanography 105 Docs ZG Linguistics & Communication 110 Docs ZH Archaeoastronomy 114 Docs