Cavallo tiberio (3 Ergebnisse)

Hardcover/Hardback. Zustand: Good. First Edition. With original experiments. 1777 First Edition. In 8vo. Pp. [1] f.e., xvi, viii, 412 [4], III folded plates. London. Edward and Charles Dilly. Contemporary light blue boards, with slight signs of wear. Uncut, very light foxing at limited leaves. Pp. 41-48 omitted in pagination, as customary. In excellent condition. First edition of the author's first substantial scientific publication, and one of the most important English-language treatises on electricity of the 18th century, when discoveries about electricity (linked to figures like Franklin and Volta, and to devices such as Leyden jars, lightning rods, and electrometers) were being organized into a clearer, teachable system.Published just two years before his election as Fellow of the Royal Society in 1779, the Treatise established his reputation as the foremost English-language systematizer of electrical knowledge, thanks to its disciplined arrangement of a rapidly expanding field: electricity becoming not only a subject of wonder, but a practical, illustrated, and increasingly standardized science. Ref. Wheeler Gift 463, p. 220; Mottelay, pp. 243-245. The treatise is divided into four parts, reflecting the author's conviction that the science could be presented with full rigor only by separating established fact from hypothesis, and both from practical instruction. Part I, "Fundamental Laws of Electricity," treats basic terminology, electrics and conductors, positive and negative electricity, methods of excitation, communicated electricity, the Leyden phial, atmospheric electricity, practical advantages, and a summary of principal properties. Part II, "Theory of Electricity," is expressly hypothetical, with the preface noting that this section relates "not to facts, but to opinions" and that the "great improbability of most of these hypotheses" kept it brief. Part III, "Practical Electricity," covers apparatus, machine design, components, experimental setup, attraction and repulsion, electric light, the Leyden phial, charged electrics, lightning conductors, the electrical battery, and further properties of the Leyden phial. Part IV, "New Experiments in Electricity," presents the author's contributions: the electrical kite and kite experiments, atmospheric and rain electrometers, the electrophorus, a machine for producing perpetual electricity, experiments on colors, and promiscuous experiments. The introduction traces the history from Theophrastus and amber through William Gilbert (hailed as the father of the science), Boyle, Otto von Guericke, Newton, Hawkesbee, and Stephen Gray, whose rediscovery marks the "true flourishing era." The three folding copperplates, engraved by John Lodge after drawings by T. Conde, depict machines, Leyden jars, electrometers, conductors, kite apparatus, and related instruments. The work went through three further editions in the author's lifetime, the second in 1782 and the third in three volumes between 1786 and 1795, each substantially enlarged, and remained a standard reference for both neophytes and advanced experimenters. Cavallo's treatise tames electricity's chaos into elegant order, complete with gleaming instruments and bold ideas: Enlightenment curiosity wired into a beautifully teachable form - for the first time. John Lodge (after T. Cond[e]) (illustrator). …

21,5 cm, rilegatura in mezza pelle con piatti marmorizzati, titoli e fregi in oro al dorso. P. XX, 511, (1), con 1 tabella ripiegata, e 3 tavole illustrate ripiegate fuori testo. L'opera di Tiberius Cavallo, fisico italiano attivo in Inghilterra, presenta una sistematizzazione delle conoscenze sull?elettricità nel tardo Settecento, illustrando strumenti, esperimenti e principi fisici. Qualche fioritura sparsa alle pagine, nel complesso esemplare assai ben conservato. Molto buono.…

Legatura coeva in piena pelle, titoli dorati su tassello e filetti dorati sul dorso liscio, in quarto cm 27 x 22, pp XII 835 (1) (8), 1 tabella e 3 tavole incise ripiegate (complessive 59 figure di strumenti e apparecchi per le sperimentazioni scientifiche portate avanti dall'autore). Segnatura: A4 a2 B-5O4 5P2. Bell'esemplare, completo e genuinamente conservato, lievi sparse bruniture. Indaffarato sperimentatore, socio delle Accademie di Londra e Napoli, dedito agli studi sull'elettricità e in corrispondenza epistolare con Volta, Tiberio Cavallo fu peculiare figura di dilettante evoluto nel panorama scientifico settecentesco. In questo trattato dedicato alle proprietà fisiche dei fluidi e all'influenza esercitata sulle stesse dalle condizioni chimiche e idrostatiche l'Autore esamina a fondo la letteratura scientifica del tempo, in particolare gli studi di Joseph Priestley, propone esperienze per determinare la composizione dell'atmosfera e le condizioni della sua infiammabilità, e si occupa fra l'altro dell'influenza della luce e dell'aria sulla vita delle piante. Edizione originale. Bell'esemplare, completo e genuinamente conservato, sbucciature e piccole mancanze sulla legatura, specialmente al dorso, e internamente lievi sparse bruniture.…