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Re: starship-design: Re: Perihelion Maneuver

KellySt@aol.com wrote:
>>With a wavelength of 1mm, that requires
>>an aperture around 30,000km wide.  Don't tell me you're going to
>>make a microwave laser that big.

>As I mentioned a phased array maser cluseer of 2 AU recently (for fuel sail),
>and we have done extensive conversations of it a year ago, I'ld think we'ld
>already covered that to death?  Hell they're even talking optical telescope
>clusters on that scale.

But it doesn't work.  You can get better resolution using a telescope
with VLBI, but you can _not_ use phased array to acheive better power

As you should know, VLBI increases resolution, but not sensitivity
(compared to a single telescope of the same total aperture area).

Think about what that means in reverse.  That means that a VLBI array
of emitters will decrease illuminated spot size, but not illuminated
spot brightness (compared to a single emitter of the same total aperture

Alternatively, and more convincingly, do some math using the formulas
for EM radiation.  Since they're linear, all you have to do is add.
    _____     Isaac Kuo kuo@bit.csc.lsu.edu http://www.csc.lsu.edu/~kuo
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