tag:blogger.com,1999:blog-2597697573688538165.post5803352901092322747..comments2023-04-16T19:07:11.314-07:00Comments on Space Hams: Manned sky platform?.http://www.blogger.com/profile/12127308959156527284noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2597697573688538165.post-56145663112823901992013-03-13T10:52:23.254-07:002013-03-13T10:52:23.254-07:00But how long would the helium in the balloons last...But how long would the helium in the balloons last?DC-14-3Chttps://www.blogger.com/profile/11824496021823082252noreply@blogger.comtag:blogger.com,1999:blog-2597697573688538165.post-75148740690319668412013-03-13T10:50:03.200-07:002013-03-13T10:50:03.200-07:00This comment has been removed by the author.DC-14-3Chttps://www.blogger.com/profile/11824496021823082252noreply@blogger.com