Comments on: Space Elevator Still At Ground Floor http://blogs.discovermagazine.com/sciencenotfiction/2008/10/21/space-elevator-still-at-ground-floor/ The science of futurist technologies—and an excuse to soak in sci-fi TV shows, books, movies, toys, and video games. Fri, 20 Nov 2009 21:57:34 -0600 http://wordpress.org/?v=2.8.4 hourly 1 By: Lee Cordochorea http://blogs.discovermagazine.com/sciencenotfiction/2008/10/21/space-elevator-still-at-ground-floor/comment-page-1/#comment-2340 Lee Cordochorea Sat, 06 Dec 2008 20:49:06 +0000 http://blogs.discovermagazine.com/sciencenotfiction/2008/10/21/space-elevator-still-at-ground-floor/#comment-2340 "Kg/cm2" is not a valid measurement. I suspect the author intended "Kgf/cm2." 56000 Kgf/cm2 = 5.5GPa (approx). "33 percent stronger than steel" is ambiguous since the strength of steel varies by orders of magnitude depending on composition and heat treatment. “Kg/cm2″ is not a valid measurement. I suspect the author intended “Kgf/cm2.” 56000 Kgf/cm2 = 5.5GPa (approx).

“33 percent stronger than steel” is ambiguous since the strength of steel varies by orders of magnitude depending on composition and heat treatment.

]]> By: Tom Sybert http://blogs.discovermagazine.com/sciencenotfiction/2008/10/21/space-elevator-still-at-ground-floor/comment-page-1/#comment-1558 Tom Sybert Sun, 26 Oct 2008 12:48:04 +0000 http://blogs.discovermagazine.com/sciencenotfiction/2008/10/21/space-elevator-still-at-ground-floor/#comment-1558 Here's another take on the Space Elevator from a Geek like me. http://www.geeknewscentral.com/archives/007945.htm Here’s another take on the Space Elevator from a Geek like me.

http://www.geeknewscentral.com/archives/007945.htm

]]> By: space » Blog Archive » Space Elevator Still At Ground Floor http://blogs.discovermagazine.com/sciencenotfiction/2008/10/21/space-elevator-still-at-ground-floor/comment-page-1/#comment-1400 space » Blog Archive » Space Elevator Still At Ground Floor Wed, 22 Oct 2008 02:57:27 +0000 http://blogs.discovermagazine.com/sciencenotfiction/2008/10/21/space-elevator-still-at-ground-floor/#comment-1400 [...] Stereogum . Excerpt: My colleague Eliza Strickland over on 80 Beats has a post about … [...] [...] Stereogum . Excerpt: My colleague Eliza Strickland over on 80 Beats has a post about … [...]

]]> By: Stephen Ogley http://blogs.discovermagazine.com/sciencenotfiction/2008/10/21/space-elevator-still-at-ground-floor/comment-page-1/#comment-1390 Stephen Ogley Tue, 21 Oct 2008 22:33:48 +0000 http://blogs.discovermagazine.com/sciencenotfiction/2008/10/21/space-elevator-still-at-ground-floor/#comment-1390 I understand that the kg/cm2 unit is now deprecated and that tensile strength is more commonly quoted in GPa (giga pascals) but how many kg/cm2 is equal to a GPa? And what is this IM7 standard? I understand that the kg/cm2 unit is now deprecated and that tensile strength is more commonly quoted in GPa (giga pascals) but how many kg/cm2 is equal to a GPa? And what is this IM7 standard?

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