Re: ZLOPPS Zero loss of propellant propulsion system

In article <Oe6dnQAOm6RTwQ7VnZ2dnUVZ_jmdnZ2d@xxxxxxxxxxx>, Spaceman says...

[snip]

It blasts air internally into a (partial vacuum) in pulses
when it can and uses solar power to run the compressers
to compress the air again when needed.
Did you look at it at all?

That's hard to do; the hard part is getting past the inevitable snickering fit
that overtakes the reader after readying "to compres the ari again when
needed";)

It basically shows that.

Won't work. Conservation of momentum. But you already
knew that, right?

No Greg,
I actually know the thing will work, and I guess you just
don't know how to find out that the momentum is conserved.

Well, of course it is conserved. And that is exactly why it won't work.

It is a simple conversion of momentum into linear motion.

The snickering fit from reading this is almost as bad, but I did recover
quicker;)

Linear motion IS momentum already -- unless, of course, you are ignoring the
mass of the thing in motion. But why do that?

It is funny that I knew you would say that though.
It is more funny you actually said it probably without
even doing any of the calculations that would be involved
with the device.

No extensive calculations are necessary. It is too well known that to achieve
propulsion in a vacuum, Newton's Third Law tells us we need to toss some
momentum in one direction to achieve forward momentum in the other.

I suppose it might make a good exercise for someone to prove the same result
using d'Alembert's principle instead of N's 3rd Law.

.

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