China isn't the only country that could do it. Germany though the EU could do it. Because Skylon is a big part of the way to make power satellites economical, the EU has a big lead over the US. How about a joint EU China project? That gets the investment down to $30 B each, about the class of Three Gorges dam and the chunnel. Of course, once a propulsion laser exists, US demands wouldn't mean much. There are geometry/geography considerations because the launch sites need to be near the equator and over water. A three way split with the US involved would be even better, for reasons involving Pacific vs Atlantic weather and the need to prime the system with 12 GW for a few months. Keith On Wed, Oct 23, 2013 at 2:02 AM, Uwe Klein <uwe@xxxxxxxxxxxxxxxxxxx> wrote: > Keith Henson wrote: >> >> On Tue, Oct 22, 2013 at 12:42 AM, Uwe Klein <uwe@xxxxxxxxxxxxxxxxxxx> >> wrote: >> >>> John Stoffel wrote: >>> >>>> Laser sounds neat, but I always wonder what happens when it loses lock >>>> and illuminates something else by accident... >>>> >>> >>> What happens when the accident is intention >>> is what will keep this on paper imho. >>> >>> An orbital laser is a potential weapon >>> and for once I would actually take "second use" >>> as a real threat. >> >> >> >> It's a real problem. Lots of people are thinking about it, including >> one who says that the US would destroy any Chinese propulsion laser. >> When I asked if the US would destroy a joint Chinese/Indian laser they >> were not so certain. But if the Chinese were really upfront about >> keeping it from being used as a weapon and asked the US for help >> securing it . . . . >> > The US is infatuated with limiting/regulating others > applying rules and making demands > that they never would follow themselves. > > A bully at work. > > No nation that has other options will submit. > > uwe > > -- > > Uwe Klein [mailto:uwe@xxxxxxxxxxxxxxxxxxx] > Habertwedt 1 > D-24376 Groedersby b. Kappeln, GERMANY > phone: +49 4642 920 123 FAX: +49 4642 920 125 >