{"id":2117,"date":"2015-06-26T18:52:35","date_gmt":"2015-06-26T23:52:35","guid":{"rendered":"http:\/\/www.hephaestusproject.com\/blog\/?p=2117"},"modified":"2015-06-26T18:52:35","modified_gmt":"2015-06-26T23:52:35","slug":"mass-proximity-indicator","status":"publish","type":"post","link":"https:\/\/www.hephaestusproject.com\/blog\/2015\/06\/26\/mass-proximity-indicator\/","title":{"rendered":"Mass Proximity Indicator"},"content":{"rendered":"<p><a href=\"http:\/\/www.hephaestusproject.com\/blog\/wp-content\/uploads\/2015\/06\/90350_web.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"2118\" data-permalink=\"https:\/\/www.hephaestusproject.com\/blog\/2015\/06\/26\/mass-proximity-indicator\/90350_web\/\" data-orig-file=\"https:\/\/www.hephaestusproject.com\/blog\/wp-content\/uploads\/2015\/06\/90350_web.jpg\" data-orig-size=\"1440,933\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"90350_web\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.hephaestusproject.com\/blog\/wp-content\/uploads\/2015\/06\/90350_web-1024x663.jpg\" class=\"alignleft size-full wp-image-2118\" alt=\"90350_web\" src=\"http:\/\/www.hephaestusproject.com\/blog\/wp-content\/uploads\/2015\/06\/90350_web.jpg\" width=\"1440\" height=\"933\" srcset=\"https:\/\/www.hephaestusproject.com\/blog\/wp-content\/uploads\/2015\/06\/90350_web.jpg 1440w, https:\/\/www.hephaestusproject.com\/blog\/wp-content\/uploads\/2015\/06\/90350_web-300x194.jpg 300w, https:\/\/www.hephaestusproject.com\/blog\/wp-content\/uploads\/2015\/06\/90350_web-1024x663.jpg 1024w\" sizes=\"auto, (max-width: 1440px) 100vw, 1440px\" \/><\/a><\/p>\n<p>Years back one of my favorite sci fi authors was A.\u00a0Bertram Chandler. In his books there was a mythical device called a mass proximity indicator (MPI). As its name implies it can detect mass, and until recently this was not even close to a possibility. Recently the\u00a0<a href=\"http:\/\/www.eurekalert.org\/pub_releases\/2015-04\/nios-gba042015.php\">National Institute of Standards and Technology (NIST) created a clock so accurate that it will\u00a0neither gain nor lose one second in some 15 billion years*&#8211;roughly the age of the universe.<\/a><\/p>\n<p>It occurred to me that creating an array of these in MEMS (Micro-Electronic Mechanical System) format, might make an MPI a possibility, as each one would have a slightly different clock speed depending on the location of various masses near it.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Years back one of my favorite sci fi authors was A.\u00a0Bertram Chandler. In his books there was a mythical device called a mass proximity indicator (MPI). As its name implies it can detect mass, and until recently this was not even close to a possibility. Recently the\u00a0National Institute of Standards and Technology (NIST) created a [&hellip;]<!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_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":""},"categories":[1],"tags":[],"class_list":["post-2117","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p29Kla-y9","_links":{"self":[{"href":"https:\/\/www.hephaestusproject.com\/blog\/wp-json\/wp\/v2\/posts\/2117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hephaestusproject.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hephaestusproject.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hephaestusproject.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hephaestusproject.com\/blog\/wp-json\/wp\/v2\/comments?post=2117"}],"version-history":[{"count":3,"href":"https:\/\/www.hephaestusproject.com\/blog\/wp-json\/wp\/v2\/posts\/2117\/revisions"}],"predecessor-version":[{"id":2121,"href":"https:\/\/www.hephaestusproject.com\/blog\/wp-json\/wp\/v2\/posts\/2117\/revisions\/2121"}],"wp:attachment":[{"href":"https:\/\/www.hephaestusproject.com\/blog\/wp-json\/wp\/v2\/media?parent=2117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hephaestusproject.com\/blog\/wp-json\/wp\/v2\/categories?post=2117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hephaestusproject.com\/blog\/wp-json\/wp\/v2\/tags?post=2117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}