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Medientyp:
E-Artikel
Titel:
Attempts by Descartes and Roberval to Evaluate the Centre of Oscillation of Compound Pendulums
Beteiligte:
Capecchi, Danilo
Erschienen:
Brill, 2014
Erschienen in:
Early Science in Medicine, 19 (2014) 3, Seite 211-235
Sprache:
Nicht zu entscheiden
DOI:
10.1163/15733823-00193p01
ISSN:
1383-7427;
1573-3823
Entstehung:
Anmerkungen:
Beschreibung:
This paper re-examines the first documented attempts to establish the quantitative law of motion for a body oscillating about a fixed axis (a compound pendulum). This is quite a complex problem as weight and motion are not concentrated in a point, but are spread over a volume. Original documents by René Descartes and Gilles Personne de Roberval, who made the first contributions to solving the problem, are discussed. The two scientists had important insights into the problem which, although they were incomplete, nevertheless somehow complemented each other – at least when seen from the viewpoint of modern mechanics. Descartes was right in considering only the absolute value of the inertia forces, Roberval was right in assuming that the force of gravity should also be taken into account.