Comments on: Steam balloons http://www.foresight.org/nanodot/?p=3716 examining transformative technology Wed, 03 Apr 2013 18:23:47 +0000 hourly 1 http://wordpress.org/?v=3.0.4 By: J. Storrs Hall http://www.foresight.org/nanodot/?p=3716#comment-866337 J. Storrs Hall Mon, 01 Feb 2010 12:40:47 +0000 http://www.foresight.org/nanodot/?p=3716#comment-866337 Helium's fairly rare and if it were used in significant quantities its price would go up. I imagine nanotech could handle hydrogen quite safely, though, so it is probably what would be used it anyone were doing serious ballooning. It's just fun to realize that steam would work, given the ability to insulate. Helium’s fairly rare and if it were used in significant quantities its price would go up. I imagine nanotech could handle hydrogen quite safely, though, so it is probably what would be used it anyone were doing serious ballooning. It’s just fun to realize that steam would work, given the ability to insulate.

]]> By: Anne McGinley http://www.foresight.org/nanodot/?p=3716#comment-866311 Anne McGinley Sun, 31 Jan 2010 14:18:09 +0000 http://www.foresight.org/nanodot/?p=3716#comment-866311 Why not just use helium like the atmospheric balloons? Why not just use helium like the atmospheric balloons?

]]> By: Tim Tyler http://www.foresight.org/nanodot/?p=3716#comment-866309 Tim Tyler Sun, 31 Jan 2010 13:48:27 +0000 http://www.foresight.org/nanodot/?p=3716#comment-866309 Photos: http://www.flyingkettle.com/ [Thanks for the link! There's a great paper there with some theory and history. As they're clearly aware, the condensation issue is the key technical challenge. -jsh] Photos: http://www.flyingkettle.com/

[Thanks for the link! There's a great paper there with some theory and history. As they're clearly aware, the condensation issue is the key technical challenge. -jsh]

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