Galileo's Experimental Confirmation of Horizontal Inertia: Unpublished Manuscripts (Galileo Gleanings XXII)

Drake, Stillman

doi:10.1086/351124

Cited by 91 publications

(11 citation statements)

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“…For the first This drawing is discussed in the theorem 1 of the fourth day of the two new sciences first published in 1638 [2]. Complementary information can be found in [3]. (Online version in colour.…”

Section: Introductionmentioning

confidence: 99%

The aerodynamic wall

et al. 2014

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We study the trajectory of dense projectiles subjected to gravity and drag at large Reynolds number. We show that two types of trajectories can be observed: if the initial velocity is smaller than the terminal velocity of free fall, we observe the classical Galilean parabola: if it is larger, the projectile decelerates with an asymmetric trajectory first drawn by Tartaglia, which ends with a nearly vertical fall, as if a wall impeded the movement. This regime is often observed in sports, fireworks, watering, etc. and we study its main characteristics.

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Section: Introductionmentioning

confidence: 99%

The aerodynamic wall

et al. 2014

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“…Those who have closely examined the data and reproduced the experiment claim a very good fit between calculated and experimental results, but they disagree about what Galileo intended to test: the principle of horizontal inertia (Drake, 1973(Drake, , 1975a, the times-squared law (Naylor, 1974), or the proportionality v: s (Costabel, 1975). For example, in the case of folio 116v, we find evidence of an experiment carried out by dropping an object from different vertical heights (or possibly rolling it down inclined planes of different heights) and then deflected along a horizontal.…”

Section: The Methods Of the Mathematicians: Old Essays And The Begimentioning

confidence: 99%

New Perspectives on Galileo

Butts¹,

Pitt²

1978

141

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“…116v. This manuscript was first published by Drake (1973a) and has since been the object of numerous controversies; for a critical review, see Hill 1988. Most interpretations relate the experiment documented by this manuscript not to a technical result of Galileo's theory of projectile motion, as is suggested here, but , , g to more fundamental insights he supposedly achieved by this experiment.…”

Section: The Size Of the Trajectory For Horizontal Projectionmentioning

confidence: 99%