Phil Rosenkranz
phil.rosenkranz at co.yakima.wa.us
Tue Nov 10 13:57:47 CST 2009
I couldn’t find information on the weight of the proposed ribbon, and I’m sure as the technology grows, that the space elevator will happen. http://en.wikipedia.org/wiki/Specific_strength The newly discovered colossal carbon tube<http://en.wikipedia.org/wiki/Colossal_carbon_tube> is a variant of the carbon nanotube on a much larger scale. Its breaking length is 6066 km, sufficient to build a space elevator, and has been fabricated in larger sizes (on the scale of centimeters) than carbon nanotubes. Specific tensile strength of various materials Material<http://en.wikipedia.org/wiki/Material> [cid:image001.gif at 01CA61D3.10434C00] <http://en.wikipedia.org/wiki/Specific_strength> Strength (MPa<http://en.wikipedia.org/wiki/Megapascal>) [cid:image001.gif at 01CA61D3.10434C00] <http://en.wikipedia.org/wiki/Specific_strength> Density (g/cm³<http://en.wikipedia.org/wiki/Density>) [cid:image001.gif at 01CA61D3.10434C00] <http://en.wikipedia.org/wiki/Specific_strength> Specific Strength (kN·m/kg) [cid:image001.gif at 01CA61D3.10434C00] <http://en.wikipedia.org/wiki/Specific_strength> Breaking length (km<http://en.wikipedia.org/wiki/Kilometer>) [cid:image001.gif at 01CA61D3.10434C00] <http://en.wikipedia.org/wiki/Specific_strength> source [cid:image001.gif at 01CA61D3.10434C00] <http://en.wikipedia.org/wiki/Specific_strength> Carbon nanotube<http://en.wikipedia.org/wiki/Carbon_nanotube> 62,000 1.34 46,268 4,716 Colossal carbon tube<http://en.wikipedia.org/wiki/Colossal_carbon_tube> 6,900 .116 59,483 6,066 [12]<http://en.wikipedia.org/wiki/Specific_strength#cite_note-CCT-11> Another interesting article on how the space elevator might work. http://science.howstuffworks.com/space-elevator.htm PR Phil Rosenkranz | Program Coordinator/Applications Specialist | Yakima County Public Services Direct 509.574.2250 | Toll Free 800.572.7354 | Fax 509.574.2301 -----Original Message----- From: dba-tech-bounces at databaseadvisors.com [mailto:dba-tech-bounces at databaseadvisors.com] On Behalf Of Jim Lawrence Sent: Monday, November 09, 2009 9:57 PM To: 'Discussion of Hardware and Software issues' Subject: Re: [dba-Tech] Beam me up Scotty I wonder what the weight is per kilometer? Jim