<p>SAN FRANCISCO By day, Steve Jurvetson is a marquee name in Silicon Valley, a partner with prominent venture capital firm Draper Fisher Jurvetson, an early backer of pioneering tech companies like Hotmail, Skype and Tesla Motors.</p><p>But after dozens of meetings every weekday, in between deciding whether to invest millions of dollars in entrepreneurs' ideas, Jurvetson on nights and weekends becomes a self-professed "geek dad."</p><p>Sure enough, as he went through a series of slides at a recent technology conference in Half Moon Bay, Calif., there he was launching small rockets made by 3D printers at NASA's Ames Research Center, in the heart of the Valley.</p><p>On the next slide, there was Jurvetson in Black Rock Desert, Nev., home to the famous Burning Man Festival, with his kids and a rocket "that reached Mach 2.5," or more than twice the speed of sound.</p><p><a href="http://www.usatoday.com/story/tech/2013/07/01/steve-jurvetson-spacex-elon-musk-tesla-motors/2479583/">Keep reading...</a></p>