Galileo, Measurement of the Velocity of Light, and the Reaction Times

  title={Galileo, Measurement of the Velocity of Light, and the Reaction Times},
  author={Renato Foschi and Matteo Leone},
  pages={1251 - 1259}
According to the commonly accepted view, Galileo Galilei devised in 1638 an experiment that seemed able to show that the velocity of light is finite. An analysis of archival material shows that two decades later members of the Florence scientific society Accademia del Cimento followed Galileo guidelines by actually attempting to measure the velocity of light and suggesting improvements. This analysis also reveals a fundamental difference between Galileo's and Florence academy's methodologies… 

Figures from this paper

Galileo Perceptionist
The conclusions support an alternative interpretation which underscores the crucial role of phenomenology of perception in Galileo's epistemology and the criticism of naive realism, theoretical role of perceptual laws, and the distinction between different qualities of experience.
Specialty Grand Challenges in Optoelectronics
  • A. Abate
  • Physics
    Frontiers in Electronics
  • 2020
In 1638, the Italian astronomer Galileo Galilei designed one of the first experiments attempting to measure the speed of light (Foschi and Leone, 2009). Although the test was not conclusive, it
Ten years of Italian historiography of psychology: a field in progress.
A change that has occurred in the historiographical approach is mentioned, a transition from a historiography addressed prevalently to the "history of ideas" to one that, pursuing the approach of a new and critical "multifactorial" history, proves to be more attentive to the social and institutional history in correspondence with established international trends.
Determination of the speed of light from the longitudinal modes beat frequencies of an open-cavity helium-neon laser
We empirically determined the speed of light by measuring the variation in longitudinal mode frequencies, or the beat frequencies, of an adjustable-length, open-cavity helium-neon laser as a function
Per una lettura fenomenologico-sperimentale della "sensata esperienza"
Questo articolo esamina il significato della locuzione galileiana "sensata esperienza" da una prospettiva fenomenologico-sperimentale. Dopo aver considerato il dato filologico, sono discusse due
Drafting Agent-Based Modeling Into Basketball Analytics
A model of a basketball game, which considers most fundamentals of play, and indicates that an increased belief in a franchise player leads to increased scoring action, but a belief in the hot-hand a minor effect, demonstrates the utility of ABM to SA, thus opening a new research field.


Reconstruction of Galileo Galilei's experiment: the inclined plane
In the 'Third Day' of the Discourses and Mathematical Demonstrations Concerning Two New Sciences Galileo Galilei describes the famous experiment of the inclined plane and uses it to bring an
Helmholtz and the Psychophysiology of Time
  • C. Debru
  • Philosophy
    Science in Context
  • 2001
Experiments dealing with the velocity of propagation in nerves and the temporal aspects of perception were carried out occasionally for some fifteen years until their final publication in 1871, which reflects the continuity that holds between psychophysiological research and the Kantian philosophical background.
Galileo's Eye: A New Vision of the Senses in the Work of Galileo Galilei
Galileo's innovative conception of the relation between the senses and external reality contrasted with the classical tradition dominated by Aristotle; it paved the way for the modern understanding of sensory processing, culminating two centuries later in Johannes Müller's elaboration of the doctrine of specific nerve energies and in Helmholtz's general theory of perception.
Early Estimates of the Velocity of Light
HE astronomical methods by which OLE ROEMER and JAMES BRADLEY demonstrated the finite velocity of light are familiar portions of the scientific tradition. With respect to the early estimates of the
Roemer and the First Determination of the Velocity of Light
AT a time when it was generally believed that light was propagated instantaneously, Roemer's observations on the first satellite of Jupiter convinced most contemporary men of science that the
Physics, ballistics, and psychology: a history of the chronoscope in/as context, 1845-1890.
The author argues that the history of the chronoscope is the history not of an instrument but of an experimental setup, and the extensions and variations of chronoscope use within the contexts of ballistics, physiology, and psychology presented special challenges.
The Philosophical Significance of the One-Way Speed of Light
In the 5th century B.C., Zeno of Elea argued that motion is impossible. Although few philosophers have accepted Zeno's conclusion-the most notable exception being F. H. Bradley-it must be conceded, I
Galileo’s physical measurements
Galileo derived the pendulum law and law of fall from careful timings recorded in his working papers of 1604. His units made g’=π2/8 within 1/2 %, the ratio of distance fallen to length of pendulum
Reaction-Time Experiments in Wundt’s Institute and Beyond
Kurt Danziger (1980d) observed, “The reaction-time studies conducted during the first few years of Wundt’s laboratory constitute the first historical example of a coherent research program,