#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: Debug output Debug redirection Template debug Inline template debug List of used templates SQL debug output
Timing:	Jun 07 2025 10:26:21
Script start
Timing:	Jun 07 2025 10:26:21
Module start 'content'
Timing:	Jun 07 2025 10:26:22
Module end 'content'
Debug: ezpI18n::translateText	Jun 07 2025 10:26:22
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'contentclassmanager'
Debug: ezpI18n::translateText	Jun 07 2025 10:26:22
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'Apps'
Debug: ezpI18n::translateText	Jun 07 2025 10:26:22
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'Amministrazione Trasparente'
Debug: ezpI18n::translateText	Jun 07 2025 10:26:22
Missing translation for message in context: 'kernel/navigationpart' with comment: 'Navigation part'. The untranslated message is: 'eZTags'
Timing:	Jun 07 2025 10:26:23
Script end

Main resources:

Total runtime	1.8006 sec
Peak memory usage	30,720.0000 KB
Database Queries	272

Timing points:

Checkpoint	Start (sec)	Duration (sec)	Memory at start (KB)	Memory used (KB)
Script start	0.0000	0.1248	4,816.2500	2,019.5313
Module start 'content'	0.1248	1.0743	6,835.7813	17,900.0859
Module end 'content'	1.1991	0.6014	24,735.8672	4,290.4375
Script end	1.8004		29,026.3047

Time accumulators:

Accumulator	Duration (sec)	Duration (%)	Count	Average (sec)
Ini load
Load cache	0.1418	7.8752	59	0.0024
Check MTime	0.0101	0.5586	59	0.0002
PostgreSQL Cluster
DB queries	0.0412	2.2875	14	0.0029
Postgresql Total
Database connection	0.0051	0.2811	1	0.0051
Postgresql queries	1.8777	104.2806	272	0.0069
Looping result	0.0000	0.0000	0	0.0000
MySQL Cluster
DFS operations	0.0009	0.0504	1	0.0009
TS translator
TS init	0.0114	0.6357	9	0.0013
TS cache load	0.0087	0.4837	9	0.0010
TS context load	0.0069	0.3833	9	0.0008
Template Total	1.5018	83.4	3	0.5006
Template load	0.1711	9.5006	3	0.0570
String conversion in template resource	0.0010	0.0551	35	0.0000
Template parser: create text elements	0.0262	1.4552	35	0.0007
Template parser: remove whitespace	0.0044	0.2425	35	0.0001
Template parser: construct tree	0.1879	10.4333	35	0.0054
Template load and register function	0.0125	0.6958	11	0.0011
Template processing	1.3306	73.8968	3	0.4435
states
state_id_array	0.1252	6.9527	7	0.0179
state_identifier_array	0.0074	0.4133	8	0.0009
Override
Cache load	0.0722	4.0085	48	0.0015
Sytem overhead
Fetch class attribute can translate value	0.0047	0.2612	1	0.0047
Fetch class attribute name	0.0406	2.2545	5	0.0081
XML
Image XML parsing	0.0330	1.8340	1	0.0330
class_abstraction
Instantiating content class attribute	0.0001	0.0051	5	0.0000
OCoembed
http://www.cbt.biblioteche.provincia.tn.it/oseegenius/resource?uri=6411492&v=l&dcnr=4	0.0001	0.0062	1	0.0001
General
String conversion	0.0003	0.0186	41	0.0000
Note: percentages do not add up to 100% because some accumulators overlap

TCU Pagelayout Tool:

canonical_url	false
current_node_id	581976
is_browse	false
is_edit	false
is_homepage	false
is_login_page	false
is_register_page	false
is_search_page	false
is_subsite	false
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_node	2
show_breadcrumb	true
show_path	true
subsite_id	0
subsite_identifier	false
subsite_logo	false
subsite_name	false
subsite_url	false
ui_context	"navigation"
uri_prefix	"\/"

Subsites

Object	Node	Class	Name
573947	573092	subsite	Forte Cadine
577586	576964	subsite	Soprintendenza per i beni culturali
593894	594092	subsite	Luciano Chailly

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

Cache	Type	Packlevel	SourceFiles
	CSS	0	extension/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
	JS	0	extension/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:

Usage	Requested template	Template	Template loaded
1	node/view/full.tpl	full/article.tpl	extension/oc_tcu/design/tcu/override/templates/full/article.tpl
1	parts/opengraph_set_persistent.tpl	<No override>	extension/ngopengraph/design/standard/templates/parts/opengraph_set_persistent.tpl
2	content/datatype/view/ezxmltext.tpl	<No override>	extension/ocembed/design/standard/templates/content/datatype/view/ezxmltext.tpl
4	content/datatype/view/ezxmltags/paragraph.tpl	<No override>	extension/ocbootstrap/design/ocbootstrap/templates/content/datatype/view/ezxmltags/paragraph.tpl
1	atoms/image.tpl	<No override>	extension/oc_tcu/design/tcu/templates/atoms/image.tpl
1	content/datatype/view/ezimage.tpl	<No override>	extension/oc_tcu/design/tcu/templates/content/datatype/view/ezimage.tpl
1	content/datatype/view/ezxmltags/emphasize.tpl	<No override>	extension/ocbootstrap/design/ocbootstrap/templates/content/datatype/view/ezxmltags/emphasize.tpl
1	content/datatype/view/ezxmltags/link.tpl	<No override>	extension/ocbootstrap/design/ocbootstrap/templates/content/datatype/view/ezxmltags/link.tpl
1	content/datatype/view/ezstring.tpl	<No override>	design/standard/templates/content/datatype/view/ezstring.tpl
1	content/datatype/view/ezobjectrelationlist.tpl	<No override>	extension/oc_tcu/design/tcu/templates/content/datatype/view/ezobjectrelationlist.tpl
1	content/view/embed.tpl	<No override>	extension/ocbootstrap/design/ocbootstrap/templates/content/view/embed.tpl
1	parts/social_buttons.tpl	<No override>	extension/oc_tcu/design/tcu/templates/parts/social_buttons.tpl
1	atoms/meta.tpl	<No override>	extension/oc_tcu/design/tcu/templates/atoms/meta.tpl
1	pagelayout.tpl	<No override>	extension/oc_tcu/design/tcu/templates/pagelayout.tpl
1	page_head.tpl	<No override>	extension/oc_tcu/design/tcu/templates/page_head.tpl
1	parts/opengraph_persistent.tpl	<No override>	extension/ngopengraph/design/standard/templates/parts/opengraph_persistent.tpl
1	canonical_link.tpl	<No override>	extension/ocbootstrap/design/ocbootstrap/templates/canonical_link.tpl
1	link.tpl	<No override>	extension/oc_tcu/design/tcu/templates/link.tpl
1	page_head_style.tpl	<No override>	extension/ocbootstrap/design/ocbootstrap/templates/page_head_style.tpl
1	page_head_script.tpl	<No override>	extension/oc_tcu/design/tcu/templates/page_head_script.tpl
1	page_header.tpl	<No override>	extension/oc_tcu/design/tcu/templates/page_header.tpl
1	page_header_languages.tpl	<No override>	extension/oc_tcu/design/tcu/templates/page_header_languages.tpl
1	page_header_searchbox.tpl	<No override>	extension/oc_tcu/design/tcu/templates/page_header_searchbox.tpl
1	nav/nav-tools.tpl	<No override>	extension/oc_tcu/design/tcu/templates/nav/nav-tools.tpl
1	nav/nav-main.tpl	<No override>	extension/oc_tcu/design/tcu/templates/nav/nav-main.tpl
1	node/view/nav-main_item.tpl	<No override>	extension/oc_tcu/design/tcu/templates/node/view/nav-main_item.tpl
1	breadcrumb.tpl	<No override>	extension/oc_tcu/design/tcu/templates/breadcrumb.tpl
1	page_wrapper.tpl	<No override>	extension/oc_tcu/design/tcu/templates/page_wrapper.tpl
1	page_footer.tpl	<No override>	extension/oc_tcu/design/tcu/templates/page_footer.tpl
1	page_footer_script.tpl	<No override>	extension/oc_tcu/design/tcu/templates/page_footer_script.tpl
1	parts/ga.tpl	<No override>	extension/oc_tcu/design/tcu/templates/parts/ga.tpl
1	page_extra.tpl	<No override>	extension/ocbootstrap/design/ocbootstrap/templates/page_extra.tpl
1	setup/debug_toolbar.tpl	<No override>	design/standard/templates/setup/debug_toolbar.tpl
1	setup/clear_cache.tpl	<No override>	design/standard/templates/setup/clear_cache.tpl
1	setup/quick_settings.tpl	<No override>	design/standard/templates/setup/quick_settings.tpl
Number of times templates used: 39 Number of unique templates used: 35

Time used to render debug report: 0.0010 secs