Space elevator
- Current Events (16 Oct, 2007)
NASA Starts 2007 Competition to Build Space Elevator 
The Spaceward Foundation launched a 2007 Beam Power Challenge competition where the teams could compete to build a Space Elevator. ...
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aimee- Technology (08 Jun, 2009)
Inflatable Tower to Help Tourists Reach Space without Rocket 
In their work, entitled Acta Astronautica, Brendan Quine, Raj Seth and George Zhu at York University in Toronto, Canada, write about a giant inflatable tower that people could use to climb up to the edge of space. ...
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- Environment (08 Jul, 2009)
Futuristic Tornado Tower Uses Wind Power 
Tornado Tower brings green tech to a whole new level with its rotating facade that produces power from high-altitude winds. ...
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