#accaddeoggi 3 aprile 1973: la prima telefonata da un cellulare

Martin Cooper telefona al collega e rivale John Engel

Se la Bell System fu la prima azienda ad investire nel settore, la Motorola ebbe il merito di puntare a realizzare uno strumento portatile di comunicazione destinato ad un’ampia fascia di popolazione.

Il progetto, affidato all'ingegnere Martin Cooper, portò alla nascita di un dispositivo dai costi, tuttavia, esorbitanti.

Il 3 aprile del 1973 fu il giorno della verità: Cooper scese in strada con il proprio apparecchio e, per togliersi una grande soddisfazione, si recò nei pressi della sede della Bell. Qui si mise in contatto con l’azienda concorrente, nello specifico con il collega John Engel, a cui comunicò con orgoglio di trovarsi in strada e di stare utilizzando un telefono senza fili.

Questa chiamata, goliardica nella sostanza, portò all’inizio di una nuova epoca, quella della comunicazione a distanza.

Certo, sarebbero dovuti passare altri dieci anni perché la Motorola procedesse alla vera commercializzazione di un proprio modello, ma questo piccolo passo diede il via a quella rivoluzione mobile che si è protratta fino ai nostri giorni.

Sempre in contatto: storia sociale del telefono cellulare

redazione
parte di: Accadde oggi ...

03/04/2017

eZ debug

Clear cache:

Quick settings:

Timing: Jan 31 2025 22:49:38
Script start
Timing: Jan 31 2025 22:49:38
Module start 'content'
Timing: Jan 31 2025 22:49:38
Module end 'content'
Debug: ezpI18n::translateText Jan 31 2025 22:49:38
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'contentclassmanager'
Debug: ezpI18n::translateText Jan 31 2025 22:49:38
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'Apps'
Debug: ezpI18n::translateText Jan 31 2025 22:49:38
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'Amministrazione Trasparente'
Debug: ezpI18n::translateText Jan 31 2025 22:49:38
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'eZTags'
Timing: Jan 31 2025 22:49:39
Script end

Main resources:

Total runtime1.1232 sec
Peak memory usage30,976.0000 KB
Database Queries272

Timing points:

CheckpointStart (sec)Duration (sec)Memory at start (KB)Memory used (KB)
Script start 0.00000.0499 4,815.87502,019.4141
Module start 'content' 0.04990.5885 6,835.289117,899.3516
Module end 'content' 0.63840.4846 24,734.64064,289.4609
Script end 1.1230  29,024.1016 

Time accumulators:

 Accumulator Duration (sec) Duration (%) Count Average (sec)
Ini load
Load cache0.08397.4695590.0014
Check MTime0.01070.9522590.0002
PostgreSQL Cluster
DB queries0.01621.4444140.0012
Postgresql Total
Database connection0.00420.377610.0042
Postgresql queries0.712563.43562720.0026
Looping result0.00000.000000.0000
MySQL Cluster
DFS operations0.00030.028810.0003
TS translator
TS init0.01131.008190.0013
TS cache load0.00860.768090.0010
TS context load0.00680.603790.0008
Template Total0.987087.930.3290
Template load0.177715.825530.0592
String conversion in template resource0.00100.0927350.0000
Template parser: create text elements0.02902.5844350.0008
Template parser: remove whitespace0.00470.4144350.0001
Template parser: construct tree0.126311.2422350.0036
Template load and register function0.01421.2649110.0013
Template processing0.809172.039730.2697
states
state_id_array0.00570.510470.0008
state_identifier_array0.00800.710780.0010
Override
Cache load0.113310.0905480.0024
Sytem overhead
Fetch class attribute can translate value0.00400.358710.0040
Fetch class attribute name0.00420.377050.0008
XML
Image XML parsing0.00770.686310.0077
class_abstraction
Instantiating content class attribute0.00010.005950.0000
OCoembed
http://www.cbt.biblioteche.provincia.tn.it/oseegenius/resource?uri=6411492&v=l&dcnr=40.00010.011110.0001
General
String conversion0.00030.0307410.0000
Note: percentages do not add up to 100% because some accumulators overlap

TCU Pagelayout Tool:

canonical_urlfalse
current_node_id581976
is_browsefalse
is_editfalse
is_homepagefalse
is_login_pagefalse
is_register_pagefalse
is_search_pagefalse
is_subsitefalse
meta_description"Martin Cooper telefona al collega e rivale John Engel"
opengraph{"og:site_name":"Trentino Cultura","og:url":"http:\/\/tcu.opencontent.it\/Biblio\/Approfondimenti\/accaddeoggi-3-aprile-1973-la-prima-telefonata-da-un-cellulare","fb:app_id":"287710204681096","og:country-name":"Italy","og:type":"article","og:title":"#accaddeoggi 3 aprile 1973: la prima telefonata da un cellulare","og:description":" Martin Cooper telefona al collega e rivale John Engel","og:image":["http:\/\/tcu.opencontent.it\/var\/001\/storage\/images\/media\/images\/cell\/22303244-1-ita-IT\/Cell_opengraph.png"]}
path_array[{"text":"Home","url":"\/content\/view\/full\/2","url_alias":"","node_id":"2"},{"text":"Biblio","url":"\/content\/view\/full\/504689","url_alias":"Biblio","node_id":"504689"},{"text":"Approfondimenti","url":"\/content\/view\/full\/504690","url_alias":"Biblio\/Approfondimenti","node_id":"504690"},{"text":"#accaddeoggi 3 aprile 1973: la prima telefonata da un cellulare ","url":false,"url_alias":false,"node_id":"581976"}]
reverse_path_id_array["581976","504690","504689","2"]
root_node2
show_breadcrumbtrue
show_pathtrue
subsite_id0
subsite_identifierfalse
subsite_logofalse
subsite_namefalse
subsite_urlfalse
ui_context"navigation"
uri_prefix"\/"

Subsites

ObjectNodeClassName
573947573092subsiteForte Cadine
577586576964subsiteSoprintendenza per i beni culturali
593894594092subsiteLuciano Chailly

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

CacheTypePacklevelSourceFiles
CSS0extension/oc_tcu/design/tcu/stylesheets/app.css
design/standard/stylesheets/debug.css
extension/ezwt/design/standard/stylesheets/websitetoolbar.css
extension/ezfind/design/standard/stylesheets/ezfind.css
extension/ocbootstrap/design/ocbootstrap/stylesheets/ezajax_autocomplete.css
extension/cjw_newsletter/design/standard/stylesheets/cjw_newsletter.css
JS0extension/ezjscore/design/standard/javascript/jquery-1.10.2.min.js
extension/oc_tcu/design/tcu/javascript/bootstrap.min.js
extension/oc_tcu/design/tcu/javascript/main.js
extension/oc_tcu/design/tcu/javascript/wow.min.js
extension/oc_tcu/design/tcu/javascript/jquery.infinitescroll.min.js
extension/oc_tcu/design/tcu/javascript/jquery.isotope.min.js
extension/oc_tcu/design/tcu/javascript/jquery.masonry.min.js
extension/oc_tcu/design/tcu/javascript/readmore.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
4content/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
1pagelayout.tpl<No override>extension/oc_tcu/design/tcu/templates/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_head_style.tpl<No override>extension/ocbootstrap/design/ocbootstrap/templates/page_head_style.tplEdit templateOverride template
1page_head_script.tpl<No override>extension/oc_tcu/design/tcu/templates/page_head_script.tplEdit templateOverride template
1page_header.tpl<No override>extension/oc_tcu/design/tcu/templates/page_header.tplEdit templateOverride template
1page_header_languages.tpl<No override>extension/oc_tcu/design/tcu/templates/page_header_languages.tplEdit templateOverride template
1page_header_searchbox.tpl<No override>extension/oc_tcu/design/tcu/templates/page_header_searchbox.tplEdit templateOverride template
1nav/nav-tools.tpl<No override>extension/oc_tcu/design/tcu/templates/nav/nav-tools.tplEdit templateOverride template
1nav/nav-main.tpl<No override>extension/oc_tcu/design/tcu/templates/nav/nav-main.tplEdit templateOverride template
1node/view/nav-main_item.tpl<No override>extension/oc_tcu/design/tcu/templates/node/view/nav-main_item.tplEdit templateOverride template
1breadcrumb.tpl<No override>extension/oc_tcu/design/tcu/templates/breadcrumb.tplEdit templateOverride template
1page_wrapper.tpl<No override>extension/oc_tcu/design/tcu/templates/page_wrapper.tplEdit templateOverride template
1page_footer.tpl<No override>extension/oc_tcu/design/tcu/templates/page_footer.tplEdit templateOverride template
1page_footer_script.tpl<No override>extension/oc_tcu/design/tcu/templates/page_footer_script.tplEdit templateOverride template
1parts/ga.tpl<No override>extension/oc_tcu/design/tcu/templates/parts/ga.tplEdit templateOverride template
1page_extra.tpl<No override>extension/ocbootstrap/design/ocbootstrap/templates/page_extra.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: 39
 Number of unique templates used: 35

Time used to render debug report: 0.0010 secs

DEV 192.168.105.41