{"id":4705,"date":"2020-04-03T07:00:00","date_gmt":"2020-04-03T11:00:00","guid":{"rendered":"https:\/\/langa.com\/?p=4705"},"modified":"2020-04-08T11:14:25","modified_gmt":"2020-04-08T15:14:25","slug":"47-years-ago-today","status":"publish","type":"post","link":"https:\/\/langa.com\/index.php\/2020\/04\/03\/47-years-ago-today\/","title":{"rendered":"47 years ago today…"},"content":{"rendered":"\n

The world’s first cell phone call took place 47 years ago today, using a prototype Motorola DynaTAC 8000X — the first fully-portable, commercial cell phone.<\/p>\n\n\n\n

\"\"\/
Motorola DynaTAC 8000X<\/figcaption><\/figure><\/div>\n\n\n\n

A full charge took roughly 10 hours and yielded 30 minutes of talk time (no data, of course). When it went on sale, it cost $3,995; equivalent to almost $10,000 today. (More info<\/a>.)<\/p>\n\n\n\n

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The world’s first cell phone call took place 47 years ago today, using a prototype Motorola DynaTAC 8000X — the first fully-portable, commercial cell phone. A full charge took roughly 10 hours and yielded 30 minutes of talk time (no data, of course). When it went on sale, it cost $3,995; equivalent to almost $10,000…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[30,10],"tags":[],"class_list":["post-4705","post","type-post","status-publish","format-standard","hentry","category-hardware","category-science-and-tech"],"aioseo_notices":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paaiox-1dT","jetpack-related-posts":[{"id":2519,"url":"https:\/\/langa.com\/index.php\/2019\/04\/03\/40-years-ago-today-worlds-1st-cell-phone-call\/","url_meta":{"origin":4705,"position":0},"title":"40 Years Ago Today: World’s 1st Cell Phone Call","author":"Fred Langa","date":"2019-04-03","format":false,"excerpt":"Forty years ago, a test call was made using a prototype of the first fully-portable commercial cell phone: A Motorola DynaTAC 8000X . Motorola DynaTAC 8000X A full charge took roughly 10 hours and yielded 30 minutes of talk time (no data, of course). When it went on sale, it\u2026","rel":"","context":"In "Misc"","block_context":{"text":"Misc","link":"https:\/\/langa.com\/index.php\/category\/misc\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3759,"url":"https:\/\/langa.com\/index.php\/2019\/11\/19\/what-is-the-best-way-to-store-a-2000mah-cell-phone-battery-for-1-to-2-years-charged-or-as-it-is-packed\/","url_meta":{"origin":4705,"position":1},"title":"“What is the best way to store a 2000mAh cell phone battery for 1 to 2 years, charged or as it is packed?”","author":"Fred Langa","date":"2019-11-19","format":false,"excerpt":"(Answer requested by Md-Abdur-Rahim) Store it the same way it probably arrived from the factory: with about a 30%-40% charge, which is the \"sweet-spot\" for long-term storage with minimal self-discharge for LI-ion batteries. Once charged to around 40%, carefully pack the battery in nonconductive material (e.g. a cardboard box), and\u2026","rel":"","context":"In "A reader asks..."","block_context":{"text":"A reader asks...","link":"https:\/\/langa.com\/index.php\/category\/a-reader-asks\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":596,"url":"https:\/\/langa.com\/index.php\/2018\/10\/03\/another-day-at-the-npr-pledge-phone-bank\/","url_meta":{"origin":4705,"position":2},"title":"Another day at the NPR Pledge phone bank","author":"Fred Langa","date":"2018-10-03","format":false,"excerpt":"I did another shift volunteering on the phones to help WBUR's Fall fund drive today. Most pledges are modest; any amount helps. The average pledge I've taken probably works out to something around a buck or two a week. But today's jaw-drop moment: I took one pledge for $1,000; all-at-once,\u2026","rel":"","context":"In "Around Boston..."","block_context":{"text":"Around Boston...","link":"https:\/\/langa.com\/index.php\/category\/around-boston\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2018\/10\/20181003_083952edit.jpg?fit=1200%2C1054&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2018\/10\/20181003_083952edit.jpg?fit=1200%2C1054&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2018\/10\/20181003_083952edit.jpg?fit=1200%2C1054&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2018\/10\/20181003_083952edit.jpg?fit=1200%2C1054&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2018\/10\/20181003_083952edit.jpg?fit=1200%2C1054&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":232,"url":"https:\/\/langa.com\/index.php\/2018\/09\/03\/a-reader-asks-what-e-bike-do-you-have\/","url_meta":{"origin":4705,"position":3},"title":"A reader asks: \u201cWhat e-bike do you have?\u201d","author":"Fred Langa","date":"2018-09-03","format":false,"excerpt":"Reader John Negley asks: \u201cFred, What e-bike do you have? \"I know of your love of bike riding, I've seen your videos. I am also like you, approaching geezer age. So I'm thinking of getting a bike too. Just curious, what type of bike to you have? I plan on\u2026","rel":"","context":"In "A reader asks..."","block_context":{"text":"A reader asks...","link":"https:\/\/langa.com\/index.php\/category\/a-reader-asks\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2018\/08\/bikedeerisland.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2018\/08\/bikedeerisland.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2018\/08\/bikedeerisland.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":3563,"url":"https:\/\/langa.com\/index.php\/2019\/10\/11\/why-dont-restaurants-provide-power-outlets-so-customers-can-recharge-cell-phones-or-computers\/","url_meta":{"origin":4705,"position":4},"title":"“Why don’t restaurants provide power outlets so customers can recharge cell phones or computers?”","author":"Fred Langa","date":"2019-10-11","format":false,"excerpt":"(Answer requested by Jonathan Morrone) There can be myriad reasons, but here are two very important ones: Many restaurants (and airport terminals, hotels, public building, etc.) were designed and built before everyone started carrying power-hungry smartphones! It\u2019s expensive to re-do electrical systems (especially where liquids will be handled, served, and\u2026","rel":"","context":"In "A reader asks..."","block_context":{"text":"A reader asks...","link":"https:\/\/langa.com\/index.php\/category\/a-reader-asks\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4405,"url":"https:\/\/langa.com\/index.php\/2020\/03\/12\/new-zealand-on-to-lake-taupo\/","url_meta":{"origin":4705,"position":5},"title":"New Zealand: On to Lake Taupo","author":"Fred Langa","date":"2020-03-12","format":false,"excerpt":"Taupo (the town and eponymous lake) was our next stop (see previous New Zealand posts); a 2-night stay that would allow the group to scatter for planned or ad hoc activities. But before I get to that, let me jump ahead a bit with this silliness: On the afternoon when\u2026","rel":"","context":"In "Misc"","block_context":{"text":"Misc","link":"https:\/\/langa.com\/index.php\/category\/misc\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/langa.com\/wp-content\/uploads\/2020\/03\/bungy.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"jetpack_likes_enabled":false,"_links":{"self":[{"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/posts\/4705","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/comments?post=4705"}],"version-history":[{"count":2,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/posts\/4705\/revisions"}],"predecessor-version":[{"id":4707,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/posts\/4705\/revisions\/4707"}],"wp:attachment":[{"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/media?parent=4705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/categories?post=4705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/langa.com\/index.php\/wp-json\/wp\/v2\/tags?post=4705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}