Space Travel; the Reality and the Dream
Space travel, what does this term conjure up? For me, the first thing I
think of is “Beam me up Scotty”. Little did Gene Roddenberry realize
the connotations he would implant into a whole generation’s thought
patterns and beyond. The idea of space travel, in so many individuals’
minds, brings up concepts of warp speed, starships and Klingons (alien
races). Of course, for me, Flash Gordon is always in my mind also. And so
goes part of the dream.
From the dawn of civilization, mankind has looked toward the stars
and wondered. The idea of travel beyond one’s own limited boundary
is a concept as old as, well to use an old cliché, as old as time itself.
Have you not thought yourself a time or two or many, what it would
be like to travel through space? I personally believe that almost
everyone on the planet has had this thought at least one. And the
dream will remain, as long as mankind can produce rational thought.
With the concept of space travel being perpetuated throughout
literature and more recently TV and movies, what separates the dream
from reality? A lot of brain power, hard work and money. Yes, lots of
money. And unless one can determine how to spirit oneself through
space by thought processes alone, the “how to” of space travel had to
be worked out by someone. Do you think you could have done this?
The Theory
When trying to determine how to design and build a spacecraft, many
factors have to be understood. For instance how big should the craft
be, how heavy can it be, how fast it will have to go and how much fuel
will be needed. To get some idea of answers to these questions, you
need a theory of how objects move in space and how to make the
calculations. Amazingly most of the foundation of space flight theory
was derived by three brilliant men over a period of nearly three
centuries - from 1600 to 1900.
A German mathematician, Johannes Kepler, in 1609, figured out the
equations for orbiting planets & satellites. In particular, he determined
that the planets move in ellipses (flattened circles) rather than true
circles. These equations later became known as Kepler’s laws of
planetary motion.
In 1687, Sir Isaac Newton, wrote what is probably, considered by
most, the single greatest intellectual achievement of all time (Just a
tad greater than Albert Einstein’s great achievements). In a single
book he established the basic laws of force (remember F=ma from
those tough Physics days?), motion, and gravitation and invented a
new branch of mathematics in the process (calculus). He did all this to
show how the force of gravity is the underlying reason why a planet’s
orbit will follow Kepler’s laws.
A Russian schoolteacher, Konstantin Tsiolkovsky, was the first to
figure out all the basic equations for rocketry - in 1903 (just as the
Wright brothers were getting off the ground)! And this was done
without ever launching a single rocket himself. From his very broad
and extensive reading, including Jules Verne’s "From the Earth to the
Moon", he concluded that space travel was a possibility, that it was in
fact man’s destiny, and that rockets would be the way to pull it off. I
guess the concept of Warp speed starships hadn’t crossed his mind!
He anticipated and solved many of the problems that were yet to come
up for rocket powered space travel and drew up several basic rocket designs.
He also determined that liquid fuel would be needed to power these
rockets to space, and that the rockets would need to be built in stages
(he called them "rocket trains"). He concluded that oxygen and
hydrogen would be the most powerful fuels to use and predicted how,
65 years later, the Saturn V rocket would operate for the first landing
of men on the moon.
The Reality
So as space flight theory got its foundation, other visionaries such as
Robert Goddard,
Wernher Von Braun
and
Hermann Oberth
set the wheels in motion for the designing, building and launching of spacecraft as we know them today. The 20th century has brought about amazing advancements in the development of rockets and space flight. More on the history of rockets can be found in the menu to the left. With the coming of the jet age and later the organization of the National Aeronautics and Space Administration (NASA), our small planet forever changed.
Rockets and spacecraft became everyday concepts that will constantly remain with us. Here is one great place to keep up on events and news of the day about
space travel.
As I discover more sites, I will add them to my useful links page at the left. So keep coming back to this site to check for the latest news.
The Dream
Will there be space travel from star to star in the near future? No, that kind of ability is many years and quite possibly a century or two away. But we can always dream and build and challenge our way in that direction. Outer Space (put link to tier 3 page here), for many of us, is only a thought process or a Hollywood movie away. As long as we can think and dream and enjoy, the vision will remain alive.
And as we begin the 21st century, we enter a new arena of space travel. That of commercial space flight enterprise. The era of government control and big budge efforts, where only a select few can fly into space, is coming to an end. Private companies are throwing their hats into the ring to design and manufacture smaller and cheaper spaceships that can take you and I, the common man, on a sub orbital or even orbital flight for a fraction of the cost of governmental control. Stay tuned to web pages dedicated to the “Commercial Space Flight Industry”.
To help keep the dream alive, there is a lot of amazing information and other space and rocket related merchandise at
amazon.com
. And I can’t believe some of the projects that can keep your imagination soaring for hours or days,
available here
.
Bookmark this site and come back often. And feel free to sign up for
my free ezine, “Intrepid Journey” in the form below. This will be a
month to month continuation of what is happening in the world of
space travel & rockets. Cruise my site and enjoy. Can’t find something you
would like to know about? Hit my contact me (put link to contact me
page here) page in the menu at the left and let me know.
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