Time perception of a meteorite fall - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue WGN, Journal of the International Meteor Organization Année : 2018

Time perception of a meteorite fall

Résumé

A study of the ability of human beings to correctly estimate and count the time in case of a meteorite fall is performed. Three videos showing a simulation of a bolide are shown to more than 500 people, who are asked to guess the duration of the phenomenon. The people take each test twice: first without knowing what to see nor what will be asked of them, and second knowing they have to estimate the duration of the event. The experiment is repeated for different populations, durations, and with or without fragmentation. The results obtained were overall analyzed by statistical tests to investigate the effects of these parameters on the accuracy of the time estimates. An illustration of the effective percentage of individuals able to either accurately count and guess the duration of the phenomenon for each simulation is also presented. We show that in the case of a long (duration at least 4 s) and fragmenting fireball, a small number of visual observations would likely lead to a significant underestimate of the phenomenon duration, especially when the witnesses are not expecting such an event.
Fichier non déposé

Dates et versions

hal-02319196 , version 1 (17-10-2019)

Identifiants

Citer

A. Egal, K. Veljkovic, J. Vaubaillon, M.-K. Kwon, V. Perlerin, et al.. Time perception of a meteorite fall. WGN, Journal of the International Meteor Organization, 2018. ⟨hal-02319196⟩
26 Consultations
0 Téléchargements

Partager

Gmail Mastodon Facebook X LinkedIn More