Interstellar Propulsion idea using an Asteroid and a few comets!
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## Interstellar Propulsion idea using an Asteroid and a few comets!

#1
August 13th 04, 05:36 PM
 Andrew Nowicki external usenet poster Posts: n/a
Interstellar Propulsion idea using an Asteroid and a few comets!

Comets and asteroids can provide the mass that
is needed to generate thrust. In addition to
the reaction mass you need source of energy -- most
likely nuclear fission energy. The rocket equation
determines final velocity of your spacecraft:

V = (exhaust_gas_velocity) natural_logarithm (total_mass / dry_cargo_mass)

The total_mass includes everything: rocket engine,
structural parts, propellant, and cargo. The
dry_cargo_mass is the mass of the rocket engine,
structural parts and cargo. The ratio of total_mass
to dry_cargo_mass is called mass ratio (MR).

You have not invented anything of substance.
Interstellar travel is unlikely because it is
dangerous, expensive, and takes too much time.

Wild interstellar travel ideas:
http://www.lerc.nasa.gov/WWW/PAO/html/warp/bibliog.htm
#2
August 14th 04, 03:09 PM
 Sander Vesik external usenet poster Posts: n/a

In sci.space.policy Andrew Nowicki wrote:
Comets and asteroids can provide the mass that
is needed to generate thrust. In addition to
the reaction mass you need source of energy -- most
likely nuclear fission energy. The rocket equation
determines final velocity of your spacecraft:

V = (exhaust_gas_velocity) natural_logarithm (total_mass / dry_cargo_mass)

The total_mass includes everything: rocket engine,
structural parts, propellant, and cargo. The
dry_cargo_mass is the mass of the rocket engine,
structural parts and cargo. The ratio of total_mass
to dry_cargo_mass is called mass ratio (MR).

You have not invented anything of substance.
Interstellar travel is unlikely because it is
dangerous, expensive, and takes too much time.

Expensive and timeconsuming, sure, but where is teh extra danger?

Wild interstellar travel ideas:
http://www.lerc.nasa.gov/WWW/PAO/html/warp/bibliog.htm

--
Sander

+++ Out of cheese error +++

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