#accaddeoggi 18 settembre 1819: nasce Léon Foucault

Celebre scienziato francese

Jean Bernard Léon Foucault nacque a Parigi il 18 settembre 1819.

Dopo un primo interessamento per la medicina, Foucault sviluppò invece una forte passione per la fisica, concentrandosi in particolare sulla misurazione della luce e sullo studio della sua propagazione.

Nel 1951 riuscì a dimostrare la rotazione terrestre, allestendo il celebre esperimento del pendolo di Foucault all’interno del Pantheon di Parigi. Questa dimostrazione – insieme all’invenzione del giroscopio – gli valse quattro anni più tardi la medaglia Copley della Royal Society di Londra, prestigiosa associazione scientifica di cui divenne membro straniero qualche tempo dopo.

Léon Foucault morì nella sua città natale l’11 febbraio 1868.

Pendulum: Léon Foucault e il trionfo della scienza

redazione
parte di: Accadde oggi ...

18/09/2017

Powered by eZ Publish™ CMS Open Source Web Content Management. Copyright © 1999-2014 eZ Systems AS (except where otherwise noted). All rights reserved.

eZ debug

Clear cache:

Quick settings:

Timing: Mar 15 2026 02:22:15
Script start
Timing: Mar 15 2026 02:22:15
Module start 'layout'
Timing: Mar 15 2026 02:22:15
Module start 'content'
Timing: Mar 15 2026 02:22:16
Module end 'content'
Debug: ezpI18n::translateText Mar 15 2026 02:22:16
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'contentclassmanager'
Debug: ezpI18n::translateText Mar 15 2026 02:22:16
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'Apps'
Debug: ezpI18n::translateText Mar 15 2026 02:22:16
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'Amministrazione Trasparente'
Debug: ezpI18n::translateText Mar 15 2026 02:22:16
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'eZTags'
Error: eZTemplate @ extension/ocbootstrap/design/ocbootstrap/templates/canonical_link.tpl:1[0] Mar 15 2026 02:22:16
Unknown template variable 'pagedata' in namespace ''
Error: eZTemplate @ extension/ocbootstrap/design/ocbootstrap/templates/canonical_link.tpl:1[0] Mar 15 2026 02:22:16
Unknown template variable 'pagedata' in namespace ''
Timing: Mar 15 2026 02:22:16
Script end

Main resources:

Total runtime0.8547 sec
Peak memory usage27,904.0000 KB
Database Queries112

Timing points:

CheckpointStart (sec)Duration (sec)Memory at start (KB)Memory used (KB)
Script start 0.00000.0697 4,819.34381,696.0078
Module start 'layout' 0.06970.0214 6,515.3516677.4531
Module start 'content' 0.09110.6699 7,192.804717,660.8516
Module end 'content' 0.76100.0935 24,853.65631,421.3203
Script end 0.8545  26,274.9766 

Time accumulators:

 Accumulator Duration (sec) Duration (%) Count Average (sec)
Ini load
Load cache0.03203.7393350.0009
Check MTime0.00430.4995350.0001
PostgreSQL Cluster
DB queries0.02843.3184160.0018
Postgresql Total
Database connection0.00380.449510.0038
Postgresql queries0.224226.23021120.0020
Looping result0.00000.000000.0000
MySQL Cluster
DFS operations0.00040.043810.0004
TS translator
TS init0.00911.059370.0013
TS cache load0.00640.752170.0009
TS context load0.00480.561070.0007
Template Total0.731985.630.2440
Template load0.157118.384030.0524
String conversion in template resource0.00070.0778240.0000
Template parser: create text elements0.01962.2894240.0008
Template parser: remove whitespace0.00330.3917240.0001
Template parser: construct tree0.156918.3534240.0065
Template load and register function0.04345.0722100.0043
Template processing0.574767.239430.1916
states
state_id_array0.00210.247820.0011
state_identifier_array0.00310.363030.0010
Override
Cache load0.08269.6686310.0027
Sytem overhead
Fetch class attribute can translate value0.00410.481410.0041
Fetch class attribute name0.00380.441750.0008
XML
Image XML parsing0.02272.651410.0227
class_abstraction
Instantiating content class attribute0.00010.007550.0000
OCoembed
http://www.cbt.biblioteche.provincia.tn.it/oseegenius/resource?uri=5825947&v=l&dcnr=40.00020.018010.0002
General
String conversion0.00020.0258260.0000
Note: percentages do not add up to 100% because some accumulators overlap

CSS/JS files loaded with "ezjscPacker" during request:

CacheTypePacklevelSourceFiles
CSS0design/base/stylesheets/core.css
JS0extension/ocmaps/design/standard/javascript/leaflet.js
extension/ocbootstrap/design/ocbootstrap/javascript/insertmedia.js

Templates used to render the page:

UsageRequested templateTemplateTemplate loadedEditOverride
1node/view/full.tplfull/article.tplextension/oc_tcu/design/tcu/override/templates/full/article.tplEdit templateOverride template
1parts/opengraph_set_persistent.tpl<No override>extension/ngopengraph/design/standard/templates/parts/opengraph_set_persistent.tplEdit templateOverride template
2content/datatype/view/ezxmltext.tpl<No override>extension/ocembed/design/standard/templates/content/datatype/view/ezxmltext.tplEdit templateOverride template
5content/datatype/view/ezxmltags/paragraph.tpl<No override>extension/ocbootstrap/design/ocbootstrap/templates/content/datatype/view/ezxmltags/paragraph.tplEdit templateOverride template
1atoms/image.tpl<No override>extension/oc_tcu/design/tcu/templates/atoms/image.tplEdit templateOverride template
1content/datatype/view/ezimage.tpl<No override>extension/oc_tcu/design/tcu/templates/content/datatype/view/ezimage.tplEdit templateOverride template
1content/datatype/view/ezxmltags/emphasize.tpl<No override>extension/ocbootstrap/design/ocbootstrap/templates/content/datatype/view/ezxmltags/emphasize.tplEdit templateOverride template
1content/datatype/view/ezxmltags/link.tpl<No override>extension/ocbootstrap/design/ocbootstrap/templates/content/datatype/view/ezxmltags/link.tplEdit templateOverride template
1content/datatype/view/ezstring.tpl<No override>design/standard/templates/content/datatype/view/ezstring.tplEdit templateOverride template
1content/datatype/view/ezobjectrelationlist.tpl<No override>extension/oc_tcu/design/tcu/templates/content/datatype/view/ezobjectrelationlist.tplEdit templateOverride template
1content/view/embed.tpl<No override>extension/ocbootstrap/design/ocbootstrap/templates/content/view/embed.tplEdit templateOverride template
1parts/social_buttons.tpl<No override>extension/oc_tcu/design/tcu/templates/parts/social_buttons.tplEdit templateOverride template
1atoms/meta.tpl<No override>extension/oc_tcu/design/tcu/templates/atoms/meta.tplEdit templateOverride template
1print_pagelayout.tpl<No override>design/standard/templates/print_pagelayout.tplEdit templateOverride template
1page_head.tpl<No override>extension/oc_tcu/design/tcu/templates/page_head.tplEdit templateOverride template
1parts/opengraph_persistent.tpl<No override>extension/ngopengraph/design/standard/templates/parts/opengraph_persistent.tplEdit templateOverride template
1canonical_link.tpl<No override>extension/ocbootstrap/design/ocbootstrap/templates/canonical_link.tplEdit templateOverride template
1link.tpl<No override>extension/oc_tcu/design/tcu/templates/link.tplEdit templateOverride template
1page_mainarea.tpl<No override>design/standard/templates/page_mainarea.tplEdit templateOverride template
1page_warning.tpl<No override>design/standard/templates/page_warning.tplEdit templateOverride template
1page_copyright.tpl<No override>design/standard/templates/page_copyright.tplEdit templateOverride template
1setup/debug_toolbar.tpl<No override>design/standard/templates/setup/debug_toolbar.tplEdit templateOverride template
1setup/clear_cache.tpl<No override>design/standard/templates/setup/clear_cache.tplEdit templateOverride template
1setup/quick_settings.tpl<No override>design/standard/templates/setup/quick_settings.tplEdit templateOverride template
 Number of times templates used: 29
 Number of unique templates used: 24

Time used to render debug report: 0.0009 secs

DEV 192.168.105.41