BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//INFN-LNF - ECPv5.14.2.1//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:INFN-LNF
X-ORIGINAL-URL:https://w3.lnf.infn.it
X-WR-CALDESC:Eventi per INFN-LNF
BEGIN:VTIMEZONE
TZID:Europe/Rome
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20170326T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20171029T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Rome:20171108T110000
DTEND;TZID=Europe/Rome:20171108T133000
DTSTAMP:20260902T024917
CREATED:20170911T081701Z
LAST-MODIFIED:20171115T135533Z
UID:6454-1510138800-1510147800@w3.lnf.infn.it
SUMMARY:Measuring propagation speed of Coulomb fields
DESCRIPTION:In planetary systems\, the problem arises whether gravity attracting the planets towards the central star has an instantaneous action or propagates with finite velocity. Laplace noticed that\, if gravity propagated with finite velocity\, planets motion would become unstable due to a torque originating from time lag of the gravitational interactions. Given that equations describing gravitational interaction are formally the same describing electrostatic interactions\, we have performed an experiment meant to measure the time/space evolution of the electric field generated by a uniformly moving set of electrons. The results we obtain seem compatible with an electric field rigidly carried by the beam itself.
URL:/event/measuring-propagation-speed-of-coulomb-fields/
LOCATION:Auditorium B. Touschek\, Via Enrico Fermi\, 54\, Frascati\, Roma\, 00044\, Italia
CATEGORIES:Seminari generali
END:VEVENT
END:VCALENDAR