Am 17.02.2018 um 14:50 schrieb Henry Vanderbilt:
On 2/17/2018 1:37 AM, Uwe Klein wrote:That is the "chocolate-covered manhole cover" story, right :-)
Am 17.02.2018 um 06:23 schrieb David Summers:
Of course, if you follow this line of thought too far you see that what
we need to develop is a 100 lb orbital spacecraft. That way the
development funding becomes easy!
External energy source mini Orion propulsion?
Heh. GMTA! https://en.wikipedia.org/wiki/Operation_Plumbbob
scroll down to "Propulsion of steel plate cap"