Horace Heffner wrote:
>
> Fred, I am so glad you are still around. You are one of the few remaining
> list members who seems to not be numerically challenged.
>
> At 5:29 PM 1/12/5, Frederick Sparber wrote:
>> I propose using very large cylinders of solid CO2 with the ends pointed
>>toward the sun
> >so that the 1.3 kilowatts/meter^2 solar insolation (at earth's distance)
> >can provide
>>the 200Kj/kg heat of sublimation, thus providing a "sublime" thrust as the
>>CO2 comes off.
>>
> >Heat from a Cold Fusion radiator can be used when the '"Outer Limits" of
> >solar energy
> >is attained.
>>
>>Helps alleviate the green-house gas problem too.
> list members who seems to not be numerically challenged.
>
> At 5:29 PM 1/12/5, Frederick Sparber wrote:
>> I propose using very large cylinders of solid CO2 with the ends pointed
>>toward the sun
> >so that the 1.3 kilowatts/meter^2 solar insolation (at earth's distance)
> >can provide
>>the 200Kj/kg heat of sublimation, thus providing a "sublime" thrust as the
>>CO2 comes off.
>>
> >Heat from a Cold Fusion radiator can be used when the '"Outer Limits" of
> >solar energy
> >is attained.
>>
>>Helps alleviate the green-house gas problem too.
>>
>
I'm not so sure about that numerically challenged part, Horace.
I come up with about 90 lbs thrust per square meter for CO2 sublimation, and
about 20 lbs per square meter for H2O ice sublimation thrust.
With "CO2 Smoke and Mirrors" you can fly a spacecraft toward the sun too. :-)
Frederick
