[PW] Tallest and most impossible building question

[Reed C Bowman]

Sea Wasp wrote:

>FERGUSON Timothy wrote:
>  
>
>>NASA has done some developmental work on space elevators, which are tall
>>projected structures.  They can't make them yet, but they are past the
>>science fiction stage in terms of their development. They are
>>more...speculative engineering?
>>
>>    
>>
>
>	There is at least one company (Liftport) which is working on making 
>them a reality.
>  
>
Also Tethers Unlimited, the late Robert Forward's nonfiction company.

RCB