[ExI] extropy-chat Digest, Vol 90, Issue 29

Keith Henson hkeithhenson at gmail.com
Tue Mar 15 21:08:27 UTC 2011

On Tue, Mar 15, 2011 at 12:48 PM,  Stefano Vaj <stefano.vaj at gmail.com> wrote:

> On 13 March 2011 16:15, Keith Henson <hkeithhenson at gmail.com> wrote:
>> That takes raising the exhaust velocity to~ 9 km/sec and the only way
>> we know to do that is beamed energy.
> Why nuclear would not work?

Too heavy, though it was considered.
http://en.wikipedia.org/wiki/Nuclear_thermal_rocket  and search for

Plus there is the little problem of having one of them crash.


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