{"id":7904,"date":"2014-05-24T11:47:17","date_gmt":"2014-05-24T15:47:17","guid":{"rendered":"http:\/\/hobbyspace.com\/Blog\/?p=7904"},"modified":"2014-05-25T01:33:42","modified_gmt":"2014-05-25T05:33:42","slug":"sunday-webinar-on-artificial-gravity-via-rotation-with-tethers","status":"publish","type":"post","link":"https:\/\/hobbyspace.com\/Blog\/?p=7904","title":{"rendered":"Sunday webinar on artificial gravity via rotation with tethers"},"content":{"rendered":"<p>On Sunday May 25th, \u00a0<a href=\"http:\/\/www.TheSpaceShow.com\" target=\"_blank\">The Space Show<\/a> will present a<a href=\"http:\/\/thespaceshow.com\/newsletterfinal.htm\" target=\"_blank\"> special video webinar program<\/a> on the topic of using rotation to provide artificial gravity. <a href=\"http:\/\/newspace2011.spacefrontier.org\/speakers\/158\/\" target=\"_blank\">Joe Carroll<\/a> will discuss his ideas on using tethers for such rotating systems.<\/p>\n<p style=\"padding-left: 30px;\"><em>WEBINAR: The Sunday, May 25, 2014 program from 1-3 PM PDT, (4-6 PM EDT, 3-5 PM CDT): This is our first WEBINAR for 2014. Our guest of honor is Joe Carroll and I will be assisted on the panel with Dr. John Jurist and Dr. Jim Logan. Joe is updating us on his partial gravity work which was the topic of an earlier webinar in May 2011. You can listen to the audio only for this show as you would any Space Show program. If you want to see the live webinar, go to our private UStream Space Show channel, <a href=\"http:\/\/www.ustream.tv\/channel\/the-space-show\" target=\"_blank\">www.ustream.tv\/channel\/the-space-show<\/a>. Note that this show will archive audio and video simultaneously. The video of our webinar will be on our private Space Show Vimeo channel. Watch for details.<\/em><\/p>\n<p style=\"padding-left: 30px;\"><em>Joe Carroll has worked since 1981 on advanced space transportation, mostly involving long tethers. He led the development of the Small Expendable Deployment System (SEDS), which demonstrated controlled deorbit without rockets in 1993 and also flew successfully on SEDS-2 in 1994, and TiPS in 1996. He also developed the deployer and wire for the Plasma Motor Generator (PMG), which demonstrated electrodynamic thrust in orbit.\u00a0 He has also worked on unmanned and manned reentry vehicle concepts for NASA and several startups. His main current work is on electrodynamic tethers.<\/em><\/p>\n<p>Here is a paper by Carroll :\u00a0<a href=\"http:\/\/spaceshowclassroom.files.wordpress.com\/2011\/05\/designconceptsforamannedartificialgravityresearchfacilityforiac2010sept14.pdf\" target=\"_blank\">Design Concepts for a Manned Artificial Gravity Research Facility, by\u00a0Joseph A Carroll,\u00a0Tether Applications, Inc., USA (pdf)<\/a>.<\/p>\n<p>[ <strong>Update<\/strong>: Some additional material has been made available for the show:<\/p>\n<ul>\n<li><a href=\"http:\/\/thespaceshow.wordpress.com\/2014\/05\/24\/space-show-webinar-sunday-5-25-14\/\" target=\"_d\">Space Show Webinar, Sunday, 5-25-14 &#8211;\u00a0Thespaceshow&#8217;s Blog<\/a><\/li>\n<li><a href=\"http:\/\/thespaceshow.files.wordpress.com\/2014\/05\/partial-gravity-iac2010-presentation-revised-2014may22.pdf\">Partial Gravity IAC2010 Presentation revised 2014May22 (pdf)<\/a><\/li>\n<li><a href=\"http:\/\/thespaceshow.files.wordpress.com\/2014\/05\/designconceptsforamannedartificialgravityresearchfacilityforiac2010sept14-rev-2014may22.pdf\">DesignConceptsForAMannedArtificialGravityResearchFacilityForIAC2010Sept14 rev 2014May22 (pdf)<\/a><\/li>\n<\/ul>\n<p>]<\/p>\n<p>Here are articles\u00a0from Robert Walker who examines\u00a0Carroll&#8217;s tether concept. Walker\u00a0includes\u00a0several animations showing how a crew capsule and its spent\u00a0upper stage could be tethered together to provide a spin gravity system at low cost:<\/p>\n<ul>\n<li><a href=\"http:\/\/www.science20.com\/robert_inventor\/joseph_carrolls_ingenious_artificial_gravity_experiment_soyuz_in_tether_spin_almost_no_extra_fuel-136686\" target=\"_d\">Joseph Carroll&#8217;s Ingenious Artificial Gravity Experiment &#8211; Soyuz In Tether Spin &#8211; Almost No Extra Fuel<\/a><\/li>\n<li><a href=\"http:\/\/www.science20.com\/robert_inventor\/crew_tether_spin_for_artificial_gravity_on_way_to_iss_stunning_new_videos_space_show_webinar_on_sunday-137070\" target=\"_d\">Crew Tether Spin For Artificial Gravity On Way To ISS &#8211; Stunning New Videos &#8211; Space Show Webinar On Sunday<\/a><\/li>\n<li><a href=\"http:\/\/www.science20.com\/robert_inventor\/blog\/ingenious_idea_soyuz_crew_in_tether_spin_on_way_to_iss_for_artificial_gravity_almost_no_extra_fuel-131278\" target=\"_d\">Ingenious Idea: Soyuz Crew in Tether Spin On Way to ISS &#8211; For Artificial Gravity &#8211; Almost No Extra Fuel<\/a><\/li>\n<\/ul>\n<p>Here, for example, is an animation of a Soyuz spacecraft that is tethered to its upper stage.<\/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\/NLtdm7iWBfY?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>For lunar gravity level:<\/p>\n<p style=\"padding-left: 30px;\"><em>Joe Caroll suggests a 600 meter tether. The final stage weighs a third of the weight of the Soyuz. This puts the centre of gravity of the assembly 150 meters away from the Soyuz, and 450 meters away from the final stage.\u00a0<\/em><\/p>\n<p><em>This lets you generate artificial lunar gravity with spin rate of 1 rpm.<\/em><\/p>\n<p><em>At that rotation rate the Soyuz has delta v of 15.6 m\/sec, the final stage travels at three times that speed, and the speed of the Soyuz relative to the final stage is four times that, 62.4 m\/sec.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>On Sunday May 25th, \u00a0The Space Show will present a special video webinar program on the topic of using rotation to provide artificial gravity. Joe Carroll will discuss his ideas on using tethers for such rotating systems. WEBINAR: The Sunday, May 25, 2014 program from 1-3 PM PDT, (4-6 PM EDT, 3-5 PM CDT): This &hellip; <a href=\"https:\/\/hobbyspace.com\/Blog\/?p=7904\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Sunday webinar on artificial gravity via rotation with tethers<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"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":""},"categories":[15,17,26],"tags":[],"class_list":["post-7904","post","type-post","status-publish","format-standard","hentry","category-in-space-infrastructure","category-living-in-space","category-space-systems"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p34aWK-23u","jetpack-related-posts":[{"id":7842,"url":"https:\/\/hobbyspace.com\/Blog\/?p=7842","url_meta":{"origin":7904,"position":0},"title":"The Space Show this week","author":"TopSpacer","date":"May 19, 2014","format":false,"excerpt":"The guests and topics for The Space Show this week: 1. Monday, May 19, 2014, 2-3:30 PM PDT(5-6:30 PM EDT, 4-5:30 PM CDT): This is the day & show set aside to honor The Space Show on its 13th birthday. Callers and emails are welcome but I will take time\u2026","rel":"","context":"In &quot;General&quot;","block_context":{"text":"General","link":"https:\/\/hobbyspace.com\/Blog\/?cat=2"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":6418,"url":"https:\/\/hobbyspace.com\/Blog\/?p=6418","url_meta":{"origin":7904,"position":1},"title":"The Space Show this week","author":"TopSpacer","date":"February 10, 2014","format":false,"excerpt":"The guests and topics for The Space Show this week: 1. Monday, Feb. 10, 2014, 2-3:30 PM PST (5-6:30 PM EST, 4-5:30 PM CST): We welcome back Dr. Armen Papazian to further discuss his innovative space financing and banking ideas. 2. Tuesday, Feb. 4, 2014:, 7-8:30 PM PST (10-11:30 PM\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":11690,"url":"https:\/\/hobbyspace.com\/Blog\/?p=11690","url_meta":{"origin":7904,"position":2},"title":"The Space Show this week &#8211; Nov.2.2015","author":"TopSpacer","date":"November 2, 2015","format":false,"excerpt":"The guests and topics of discussion on The Space Show this week: 1. Monday, Nov. 2. 2015: 2-3:30 PM PST (5-6:30 PM EST; 4-5:30 PM CST): We welcome back JOE CARROLL on artificial gravity. Check The Space Show blog prior to this program for Joe's presentation material. 2. Tuesday, Nov.\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":10421,"url":"https:\/\/hobbyspace.com\/Blog\/?p=10421","url_meta":{"origin":7904,"position":3},"title":"The Space Show this week &#8211; Apr.20.2015","author":"TopSpacer","date":"April 20, 2015","format":false,"excerpt":"The guests and topics of discusion on The Space Show this week: 1. Monday, April 20, 2015: 2-3:30 PM PDT (5-6:30 PM EDT; 4-5:30 PM CDT): We welcome DR. DONALD RAPP to discuss the use of indigenous resources on Mars to reduce the cost of a human mission to Mars\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":3247,"url":"https:\/\/hobbyspace.com\/Blog\/?p=3247","url_meta":{"origin":7904,"position":4},"title":"The Space Show this week","author":"TopSpacer","date":"July 8, 2013","format":false,"excerpt":"Here's a listing of the programs on The Space Show this week: 1. Monday, July 8, 2013, 2-3:30 PM PDT (5-6:30 PM EDT, 4-5:30 PM CDT): We welcome back STEVE WOLFE regarding his new book, The Obligation ( http:\/\/theobligationbook.com). 2. Tuesday, July 9, 2013, 7-8:30 PM PDT (10-11:30 PM EDT,\u2026","rel":"","context":"In &quot;Activism&quot;","block_context":{"text":"Activism","link":"https:\/\/hobbyspace.com\/Blog\/?cat=3"},"img":{"alt_text":"","src":"http:\/\/ir-na.amazon-adsystem.com\/e\/ir?t=hobbyspace&l=as2&o=1&a=B00AO5R02C","width":350,"height":200},"classes":[]},{"id":12264,"url":"https:\/\/hobbyspace.com\/Blog\/?p=12264","url_meta":{"origin":7904,"position":5},"title":"The Space Show this week &#8211; Feb.29.16","author":"TopSpacer","date":"February 29, 2016","format":false,"excerpt":"The guests and topics of discussion on The Space Show this week: 1. Monday, Feb. 29, 2016: 2-3:30 PM PST KIM HOLDER of www.moonwards.com to the show. 2. Tuesday, March 1, 2016: 7-8:30 PM PST (10-11:30 PM EST, 9-10:30 PM CST): We welcome back DR. MICHAEL SCHMIDT and DR. THOMAS\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":[]}],"_links":{"self":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/7904","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=7904"}],"version-history":[{"count":3,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/7904\/revisions"}],"predecessor-version":[{"id":7919,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=\/wp\/v2\/posts\/7904\/revisions\/7919"}],"wp:attachment":[{"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7904"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hobbyspace.com\/Blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}