Konstantin Tsiolkovsky

Record year1903–1914

summaryOrganizes quantitative theory applying reactive flight to space travel into a continuously revised, publicly testable textual chain.

M rationaleM6.2 is assessed for quantitative theory, the scope of interstellar application, and a reusable design foundation. This packet has not checked priority formula by formula, so shares for prior work and unresolved attribution are high; M is not mechanically lowered for not reading every page, nor is later success assigned to the individual.

attribution rationaleTsiolkovsky .52, earlier work in rocket mechanics .20, original publication .08, scientific exchange .05, later editing .05, unresolved .10.

overlap boundaryReactive flight, velocity–mass relations, and interstellar-flight theory in the 1903 Exploration of Cosmic Space by Means of Reaction Devices and its 1911–12 and 1914 supplements. Excludes actual rockets, Soviet programs, crewed spaceflight, and all later engineering.

Evidence gapsDifferences between the original 1903 journal version and later selected editions, and contemporaneous priority for each formula, remain unresolved; the direct transmission chain from texts to subsequent engineering adoption has not been demonstrated item by item.

Record yearEarly 20th century

summaryOrganizes propulsion, cabins, airlocks, and life support into system-level design imagination for long-duration space activity.

M rationaleM5.4 is assessed for a clear design framework of multiple interdependent subsystems, above scattered notions but below built engineering; M is not duplicated item by item for multistaging, airlocks, and space stations.

attribution rationaleTsiolkovsky .48, Fedorov .08, earlier systems concepts .18, original publication .08, later editing and translation .06, unresolved .12.

overlap boundaryInterconnected space-system concepts in early 20th-century texts, including multistage liquid propulsion, controllable engines, space stations, airlocks, and closed life support. Excludes any built rockets, space stations, life-support equipment, and later national programs. Already-accounted-for dynamics relations are inputs only and do not repeat their theoretical magnitude in the space-systems point.

Evidence gapsThe original texts, first years, and contemporaneous parallel proposals for each concept have not been checked item by item; there is no physical engineering or performance validation, so it cannot be valued as actual space infrastructure.

Record year1897–1900

summaryDelivered an operable wind tunnel in a resource-limited setting and developed specific measuring methods and experimental texts.

M rationaleM5.2 is assessed for an actual apparatus, experimental methods, and delivery supported by continued funding; it is not a notion score inferred only from a catalogue, nor a claim that it was the world’s first wind tunnel.

attribution rationaleTsiolkovsky .45, earlier experimental work .22, fabrication assistance .10, Academy funding .08, publication team .05, unresolved .10.

overlap boundaryThe self-built 1897 wind tunnel, its description, and experimental aerodynamic work following 1900 funding. Excludes general aircraft concepts, later TsAGI, actual flight tests, and all wind-tunnel history.

Evidence gapsExperimental data, apparatus dimensions, and comparison with contemporaneous wind tunnels have not been systematically verified; specific fabrication assistants and funding-use records are unresolved.

Record year1892–1931

summaryProposed a specific scheme using corrugated metal shells and variable volume to organize airship buoyancy and structure, yielding a design argument open to scrutiny.

M rationaleM4.7 is provisionally assessed for plan texts with specific structural and control explanations. Not being built does not mean there is no design-knowledge value, nor is it measured as a successful transport system; feasibility and safety claims lack experimental support, limiting the value of the same outcome.

attribution rationaleTsiolkovsky .45, earlier experimental work .22, fabrication assistance .10, Academy funding .08, publication team .05, unresolved .10.

overlap boundaryA chain of design texts from 1892 to 1931 concerning variable-volume corrugated metal hulls, attitude, and buoyancy adjustment. It assesses the public schemes and arguments and does not assert that a full-scale airship was built, flown, or operated; model photographs are clues to design history and do not value unverified model performance.

Evidence gapsThe 1892 original journal, models, and complete drawings have not been compared page by page; material durability, gas tightness, heating control, and economic viability lack support from actual operating data.