{"id":8152,"date":"2014-06-21T19:28:30","date_gmt":"2014-06-21T23:28:30","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=8152"},"modified":"2014-06-21T19:28:30","modified_gmt":"2014-06-21T23:28:30","slug":"gravity-in-orbit-is-never-zero","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=8152","title":{"rendered":"Gravity in orbit is never zero"},"content":{"rendered":"<p>An explanation of why the term &#8220;zero gravity&#8221; is misleading:\u00a0<a style=\"font-size: 14px;\" href=\"http:\/\/www.science20.com\/jeffrey_bennett\/zero_gravity_it_may_not_be_what_you_think-139015\" target=\"_d\">Zero Gravity: It May Not Be What You Think<\/a>.<\/p>\n<p>A couple of videos explaining the same thing starting with a short one:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1600\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/YxRCyokN3g8?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>And then a longer one:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"1600\" height=\"900\" src=\"https:\/\/www.youtube.com\/embed\/NO5ppSpQQwc?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>An explanation of why the term &#8220;zero gravity&#8221; is misleading:\u00a0Zero Gravity: It May Not Be What You Think. A couple of videos explaining the same thing starting with a short one: And then a longer one:<\/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_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[95,9],"tags":[],"class_list":["post-8152","post","type-post","status-publish","format-standard","hentry","category-micro-g-rd","category-science-and-technology"],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-27u","jetpack-related-posts":[{"id":3431,"url":"https:\/\/hobbyspace.com\/Blog\/?p=3431","url_meta":{"origin":8152,"position":0},"title":"Video: Drinking coffee in zero-gravity","author":"TopSpacer","date":"July 15, 2013","format":false,"excerpt":"The latest NASA ScienceCasts video deals with\u00a0 The Zero Gravity Coffee Cup: http:\/\/youtu.be\/nZYsOG60dKQ See also The zero gravity coffee cup - Science@NASA\/Phys.org. And there is the older video from 2008 with astronaut Don Pettit demonstrating the fluid actions in weightlessness and how the zero-g coffee cup works: http:\/\/youtu.be\/pk7LcugO3zg","rel":"","context":"In &quot;Living in Space&quot;","block_context":{"text":"Living in Space","link":"https:\/\/hobbyspace.com\/Blog\/?cat=17"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/nZYsOG60dKQ\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":14226,"url":"https:\/\/hobbyspace.com\/Blog\/?p=14226","url_meta":{"origin":8152,"position":1},"title":"ZERO-G provide weightlessness for university research projects","author":"TopSpacer","date":"April 17, 2017","format":false,"excerpt":"ZERO-G sends the\u00a0 message below about university research projects flown on the companies Boeing 727 that provides periods of weightlessness by flying parabolic trajectories. ZERO-G Research Flights Advance Technology for Future Deep-Space Missions As Part of NASA\u2019s Flight Opportunities Program, Research Groups Tested Systems in Zero Gravity Crucial to Long-Term\u2026","rel":"","context":"In &quot;Education&quot;","block_context":{"text":"Education","link":"https:\/\/hobbyspace.com\/Blog\/?cat=22"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/IGtZASJ_Yj4\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":14867,"url":"https:\/\/hobbyspace.com\/Blog\/?p=14867","url_meta":{"origin":8152,"position":2},"title":"Videos: &#8220;Star Craft&#8221; with Loren Grush of The Verge","author":"TopSpacer","date":"September 5, 2017","format":false,"excerpt":"Loren Grush, who reports on spaceflight at The Verge, has started a video series called Star Craft. Here are the first set of shows: ** \"In the season premiere of our new show Space Craft, Loren Grush tries on innovative Mars and Moon space suits at the University of North\u2026","rel":"","context":"In &quot;Living in Space&quot;","block_context":{"text":"Living in Space","link":"https:\/\/hobbyspace.com\/Blog\/?cat=17"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/R3O9TgZwMuE\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":5012,"url":"https:\/\/hobbyspace.com\/Blog\/?p=5012","url_meta":{"origin":8152,"position":3},"title":"Gravity Untethered: Presented by Yuri&#8217;s Night","author":"TopSpacer","date":"October 22, 2013","format":false,"excerpt":"The\u00a0Yuri's Night - Google+\u00a0site is hosting\u00a0Gravity Untethered The first in a series of one-of-a-kind hangouts hosted by Yuri's Night. We'll be talking with some amazing experts in zero-gravity about the movie \"Gravity\" that came out a few weeks ago. Joining us will be Astronaut\u00a0+Ron Garan, Astronaut\u00a0+Cady Coleman\u00a0 JSC Physiologist+Liz Warren\u00a0,\u2026","rel":"","context":"In &quot;Activism&quot;","block_context":{"text":"Activism","link":"https:\/\/hobbyspace.com\/Blog\/?cat=3"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":5070,"url":"https:\/\/hobbyspace.com\/Blog\/?p=5070","url_meta":{"origin":8152,"position":4},"title":"&#8220;Gravity&#8221; film: Getting the biology right + Commercial option missed + Google Hangout with astronauts et al","author":"TopSpacer","date":"October 25, 2013","format":false,"excerpt":"The very popular movie Gravity doesn't get the orbital mechanics right but Joel Achenbach thinks they did fine with the human part of the story :\u00a0\u201cGravity\u201d better on biology than orbital dynamics [spoilers] - Washington Post. === With the Space Shuttles now retired, the movie could have shown the astronauts\u2026","rel":"","context":"In &quot;Living in Space&quot;","block_context":{"text":"Living in Space","link":"https:\/\/hobbyspace.com\/Blog\/?cat=17"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/6bCIuzokTQU\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":10126,"url":"https:\/\/hobbyspace.com\/Blog\/?p=10126","url_meta":{"origin":8152,"position":5},"title":"The Zero Gravity Cocktail Glass Project","author":"TopSpacer","date":"March 14, 2015","format":false,"excerpt":"The Cosmic Lifestyle Corp, founded by long-time space advocate Samuel Coniglio and others, has opened a crowd-funding campaign for the Zero Gravity Cocktail Project on Kickstarter, which aims to\u00a0design and manufacture\u00a0a stylish container to hold a drink in weightlessness: Award Winning Robotics Engineer Launches Cocktail Glass for Space What happens\u2026","rel":"","context":"In &quot;DIY space&quot;","block_context":{"text":"DIY space","link":"https:\/\/hobbyspace.com\/Blog\/?cat=35"},"img":{"alt_text":"af_original","src":"https:\/\/i0.wp.com\/hobbyspace.com\/Blog\/wp-content\/uploads\/2015\/03\/af_original.png?resize=350%2C200","width":350,"height":200},"classes":[]}],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/8152","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8152"}],"version-history":[{"count":1,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/8152\/revisions"}],"predecessor-version":[{"id":8153,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/8152\/revisions\/8153"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8152"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8152"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8152"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}