Re: ballistic subterranean trains

From: John Smart (
Date: Thu Sep 27 2001 - 17:29:11 MDT

Hi Damien,

The best transplanetary proposal I've seen to date is the following:

Salter, Robert, "Trans-Planetary Subway Systems: A Burgeoning Capability,"
RAND Study, P-6092, 1978.
Worth the $10. A breathtaking, incredibly energy efficient proposal. IIRC,
at 2 G accel/decel, the NY to LA nonstop takes 18 minutes. The system
recycles most of its energy in the braking. Superconductivity would be nice,
but isn't necessary. Chunnels can connect all the major continents,
including Australia. But will it arrive before the singularity? ;-)

META Question to List Veterans: I'm scanning this list by thread every so
often using (Are there other interfaces
besides this "Black Page"?) Wanting to reply to a particular subject, I
copied the "Re: ..." title in one of the responses and then created a new
message using the "Mail" button on that page. Does this insert it in its
proper place? As a digest only subscriber, I see *no other way to reply* to
a particular email (am I missing one?) Are there more efficient ways to scan
the list and reply to threads? Please cc me any tips at, as I may miss it in the digest.


John Smart
Understanding Accelerating Change

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