"DSK" wrote in message
...
Steel= 1.2
Carbon= 63
More is better!

http://en.wikipedia.org/wiki/Carbon_nanotubes#Strength


"Carbon nanotubes are one of the strongest materials known to man, both in
terms of tensile strength and elastic modulus. This strength results from
the covalent sp2 bonds formed between the individual carbon atoms. In
2000, an MWNT was tested to have a tensile strength of 63 GPa [2]. In
comparison, high-carbon steel has a tensile strength of approximately 1.2
GPa."

Thank you, Buckminster Fuller! Now all we need to do is bring back the
Dymaxion Car!

Do you live in a geodesic dome?

Max