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

3,721 documents 34 sections 43,623 citations 34,854 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.

2,448 results for "Ur dragon" — page 97 of 123

ZA_2_02 Physics & Quantum

ZA_2_02 — Gravity, Gravitational Waves, and Anomalous Gravitational Claims

Gravity — the weakest of the four fundamental forces yet the dominant force at cosmic scales — remains the most mysterious force in physics. Newton's law of universal gravitation (1687) described gravitational attraction

gravity gravitational waves LIGO Virgo general relativity Newton
ZA_2_03 Physics & Quantum

ZA_2_03 — General and Special Relativity — Einstein's Revolution

Albert Einstein's two theories of relativity — special (1905) and general (1915) — fundamentally reshaped the understanding of space, time, mass, energy, and gravity. Special relativity, built on Lorentz invariance and t

special relativity general relativity Einstein Lorentz invariance E=mc² time dilation
ZA_2_12 Physics & Quantum

ZA_2_12 — The Black Hole Information Paradox

The black hole information paradox — first articulated by Stephen Hawking in 1976 — is arguably the most profound puzzle connecting quantum mechanics, general relativity, and information theory. When a black hole forms a

information paradox black hole information Hawking radiation unitarity black hole evaporation information loss
ZA_1_17 Verified Physics & Quantum

ZA_1_17 — Alternative Quantum Interpretations: Bohm, Many-Worlds, and Beyond Copenhagen

The interpretation of quantum mechanics — the question of what the mathematical formalism of quantum theory tells us about the nature of reality — remains one of the most profound and contested problems in the philosophy

quantum interpretation Bohmian mechanics many-worlds Copenhagen pilot wave decoherence
ZA_1_12 Verified Physics & Quantum

ZA_1_12 — Quantum Optics: Light at the Photon Level

Quantum optics — the study of light and its interaction with matter at the level of individual photons — explores phenomena that cannot be explained by classical electromagnetic theory and lies at the heart of quantum in

quantum optics photon laser squeezed light single photon source Hong-Ou-Mandel
ZA_1_04 Physics & Quantum

ZA_1_04 — Electroweak Unification: The Weak Nuclear Force

The electroweak theory, developed by Glashow (1961), Weinberg (1967), and Salam (1968), unifies electromagnetism and the weak nuclear force into a single gauge framework — SU(2)L × U(1)Y. The weak force, responsible for

electroweak theory weak force weak interaction W boson Z boson beta decay
ZA_1_16 Verified Physics & Quantum

ZA_1_16 — Sonoluminescence: Light from Sound and the Mystery of Collapsing Bubbles

Sonoluminescence is the emission of short bursts of light from gas bubbles in a liquid when excited by ultrasonic sound waves. First observed by H. Frenzel and H. Schultes at the University of Cologne in 1934 (multi-bubb

sonoluminescence cavitation bubble collapse acoustic cavitation single-bubble sonoluminescence SBSL
ZA_1_03 Physics & Quantum

ZA_1_03 — Quantum Chromodynamics: The Strong Nuclear Force

Quantum chromodynamics (QCD) is the theory of the strong nuclear force — the interaction that binds quarks into protons and neutrons and holds atomic nuclei together. Unlike electromagnetism, the strong force is mediated

quantum chromodynamics QCD strong force strong interaction color charge gluon
ZA_1_10 Verified Physics & Quantum

ZA_1_10 — Feynman Diagrams: The Visual Language of Quantum Field Theory

Feynman diagrams — the pictorial representations of mathematical expressions describing the behavior of subatomic particles — are among the most powerful and iconic tools in theoretical physics, invented by Richard Feynm

Feynman diagram quantum field theory perturbation theory propagator vertex scattering amplitude
ZA_5_03 Credible Physics & Quantum

ZA_5_03 — Infrasound — Physics, Biological Effects, and Anomalous Phenomena

Infrasound — sound below the conventional human hearing threshold of ~20 Hz — is a pervasive physical phenomenon generated by natural sources (wind, ocean waves, volcanic eruptions, earthquakes, thunderstorms, animal voc

infrasound low-frequency sound sub-bass 18.98 Hz Vic Tandy standing wave
ZA_5_06 Credible Physics & Quantum

ZA_5_06 — Quantum Thermodynamics: Heat, Work, and Entropy at the Quantum Scale

Quantum thermodynamics — the study of heat, work, entropy, and thermodynamic processes in systems where quantum-mechanical effects (superposition, entanglement, coherence, discreteness of energy levels) are significant —

quantum thermodynamics quantum heat engine Landauer principle Maxwell demon fluctuation theorem quantum coherence
ZA_5_05 Verified Physics & Quantum

ZA_5_05 — Quantum Error Correction: Protecting Quantum Information from Decoherence

Quantum error correction (QEC) — the encoding of quantum information across multiple physical qubits to protect it from decoherence and operational errors — is widely regarded as the critical enabling technology for larg

quantum error correction QEC qubit decoherence surface code logical qubit
ZA_5_22 Verified Physics & Quantum

ZA_5_22 — Ionizing Radiation: Physics, Biological Effects, and Applications

Ionizing radiation — electromagnetic waves or particles with sufficient energy (>10 eV) to remove electrons from atoms — was discovered in the final years of the 19th century through a rapid sequence of breakthroughs: Wi

ionizing radiation radioactivity alpha particles gamma rays X-rays DNA damage
ZA_5_11 Verified Physics & Quantum

ZA_5_11 — Quantum Chaos: Where Classical Chaos Meets Quantum Mechanics

Quantum chaos investigates the quantum-mechanical signatures of systems whose classical counterparts exhibit chaotic behavior — addressing the profound question of how quantum mechanics, which is fundamentally linear, en

quantum chaos random matrix theory level statistics quantum scars stadium billiard Berry conjecture
ZA_5_20 Verified Physics & Quantum

ZA_5_20 — Squeezed States and Optomechanics

Squeezed states of light and cavity optomechanics represent two of the most important frontiers in applied quantum physics — technologies that exploit quantum mechanical effects to surpass classical measurement limits an

squeezed states optomechanics quantum noise LIGO gravitational wave radiation pressure
ZA_5_02 Verified Physics & Quantum

ZA_5_02 — Quantum Computing and Qubit Technologies

Quantum computing exploits the principles of quantum mechanics — superposition (a qubit can exist in a combination of 0 and 1 simultaneously), entanglement (qubits can share correlations impossible in classical systems),

quantum computing qubit superposition entanglement quantum gate quantum circuit
ZA_4_06 Physics & Quantum

ZA_4_06 — Phase Transitions and Symmetry Breaking in Physics

Phase transitions — transformations between distinct states of matter or vacuum configurations — are among the most fundamental phenomena in physics, uniting condensed matter, particle physics, and cosmology under a comm

phase transitions symmetry breaking spontaneous symmetry breaking Higgs mechanism Landau theory order parameter
ZA_4_23 Verified Physics & Quantum

ZA_4_23 — Topological Insulators and Quantum Materials

Topological insulators (TIs) are a revolutionary class of quantum materials that behave as electrical insulators in their bulk but conduct electricity on their surfaces through topologically protected metallic states. Di

topological insulator topological order quantum spin Hall Dirac cone surface states Kane-Mele
ZA_4_10 Verified Physics & Quantum

ZA_4_10 — Topological Phases of Matter

The discovery of topological phases of matter — states of matter that cannot be described by Landau's conventional symmetry-breaking paradigm but are instead characterized by topological invariants (mathematical quantiti

topological insulator topological phase quantum Hall effect integer quantum Hall fractional quantum Hall topological order
ZA_4_05 Physics & Quantum

ZA_4_05 — Superconductivity and Superfluidity: Quantum Effects at Macro Scale

Superconductivity and superfluidity are macroscopic quantum phenomena in which matter exhibits zero electrical resistance or zero viscosity, respectively. BCS theory (1957) explains conventional superconductivity through

superconductivity superfluidity BCS theory Cooper pairs Meissner effect type I superconductor