Ninety-seven years
ago, on January 13, 1920 (accompanied by the headline “A Severe Strain on
Credulity”), the editorial page of the New
York Times published a now famous scoffing at the notion that Robert Goddard’s rocket experiments might one day
yield a trip to the moon.
Forty-nine
years later on July 17, 1969, the day after Apollo 11 blasted off, the paper
stated:
“...On Jan. 13, 1920,
Topics of the Times, an editorial-page feature of the New York Times, dismissed
the notion that a rocket could function in a vacuum and commented on the ideas
of Robert H. Goddard, the rocket pioneer, as follows: "That Professor
Goddard, with his 'chair' in Clark College and the countenancing of the
Smithsonian Institution, does not know the relation of action to reaction, and
of the need to have something better than a vacuum against which to react -- to
say that would be absurd. Of course he only seems to lack the knowledge ladled
out daily in high schools."
“Further investigation and experimentation
have confirmed the findings of Isaac Newton, and it is now definitely
established that a rocket can function in a vacuum as well as in an atmosphere.
The Times regrets the error.”
Undaunted
by the Times scoffing ten years
earlier, Dr. Goddard pursued manned rocketry in an article “Rocketing to the
Moon.” It was published in the January 1930 issue of Modern Mechanix.
Rocketing to the
Moon
GUEST BLOG--by Prof. R. H.
GODDARD, B.Sc., A.M., Ph.D.
as
told to William Robertson:
Robertson: For years scientists have been forced to study the moon
through its reflection in the observatory mirror. Since the moon refused to
come closer to the earth than 220,000 miles, however, man may find it possible
to exercise the alternative of Mahomet and go to the moon, in the opinion of a
distinguished man of science. He is Dr. Robert Hutchings Goddard, for six years
professor of physics at Princeton University, director of research for the V.
S. signal corps at Worcester Polytechnic Institute and Mt. Wilson (California)
Observatory during the world war, fellow of the American Geographical Society,
member of the American Physical Society, American Meteorological Society and
the American Institute of Social Sciences, and for the past ten years professor
of physics and director of the physical laboratories of Clark University, at
Worcester. Mass.
Goddard: It is possible to
transport a human being to the moon? To answer that question in the affirmative
is to bring smiles to the faces of skeptics without number. And in fact had
this suggestion been made before I began the extensive researches upon the
rocket method of reaching extreme altitudes, to which I have devoted many years
of labor, I must confess that I should have dismissed the thought of reaching
the moon as merely another figment of the mind of Jules Verne. Now, however, I
am of the firm opinion that it is possible with the use of a rocket of the type
I first patented in 1914 and which I have been improving ever since, to reach
the moon’s surface. And what may be of particular interest to anyone who might
contemplate making a journey thither in this new form of conveyance, I believe
it would be possible for him to return to the earth in safety and report to the
world the results of the first journey to one of our celestial neighbors.
Contrary to popular impression, I am not at present engaged in an attempt to perfect a rocket which will carry a human being to the moon. That will come later, but it should be understood that what I am now developing is a comparatively small affair and is not intended for reaching heights much greater than just outside the atmospheric envelope of the earth. There are two reasons for this: First, the expense and time for the development are much reduced if the work is carried out on a small scale.
Second,
the uses of such a rocket, even in exploring the atmosphere, are so important
that the development seems to stand a good chance of being continued. And
furthermore, if anything is designed for the purpose of passing through the
earth’s atmosphere, it is well to have a knowledge of the earth’s atmosphere
first.
Although
I have been engaged in rocket work since 1914 when I was granted my first
patents, the public evinced no particular curiosity regarding the possibilities
my investigations might open up and the recent interest displayed came in the
nature of a surprise.
At
this moment I am engaged in the highly important problem of stabilization, and
feel that it would be premature to give out data upon the results before this
matter has been settled, and the work may be called complete. Nevertheless, the
tests I have made, including that of July 17th when my experimental rocket was
fired several thousand feet, have demonstrated clearly that the method of
propelling it is operative and practical.
This
new method involves the use of liquid propellants and makes possible a rocket
with most of its weight consisting of propellant material of high energy value.
This is the new feature. And it is one that is quite vital if a rocket is to be
used for reaching extreme heights. Although all of the basic principles
involved in the high altitude rockets were patented by me in 1914, a few of the
ideas I advanced at that time have been used abroad but only with black powder
rockets.
The
liquid propellant I am using is as far ahead of black powder as the automobile
is ahead of the horse and buggy. Yet with the use of three black powder rockets,
Fritz von Opel, a German, recently succeeded in launching an airplane 75 feet
in the air and circling half of a German airport at a high speed before he lost
control of the machine.
But
the rockets I have been testing for the past nine years, are, so far as I know,
the only ones actually constructed that have embodied any considerable number
of my original principles.
The
first use of the rocket will be to send up instruments which will permit the
study of the atmosphere at great heights. Another practical step beyond that,
in all probability, will be to send a camera round, and close to, the moon,
having it guided throughout the journey by photo electric cells. With the
knowledge thus obtained, a trip to the moon may well be planned.
The
idea of such a history-making trip appeals most vividly to the imagination and
is one to which I have given consider able study.
To
the layman, undoubtedly the first thought is: “Who is going to make that first
solo flight into the unknown?”
Much
risk is to be involved, undoubtedly, but not nearly so much as would seem at
first blush were I free to make public the result of my investigations to date.
When the time comes to attempt a flight into space the dangers ahead will be
proportionately less grave in the light of scientific knowledge than those
which seemed apparent when Columbus started west with his caravels over the
uncharted seas only to find that the troubles predicted for him were largely
imaginary.
And
many with the hardihood and the scientific knowledge necessary for this, the
most thrilling of all adventures in human experience, will be willing and eager
to shove off into the vast unknown.
The
great rocket, with a compartment large enough to hold a passenger comfortably
with all of the equipment necessary for his task, will not need to carry
propellants for the return trip. The chemical elements necessary for refueling
exist on the moon to the most careful astronomical observations, and it will be
possible for the passenger to take off without any outside assistance for the
return journey.
That
of itself removes one of the greatest difficulties by restricting the weight of
the space cruiser. Successive explosions are necessary to propel the rocket and
the speed will be governed according to their frequency. This may be regulated
automatically or by the passenger himself, from a control board within his
cabin.
“Is
it possible to acquire the amazing speed necessary for the purpose in mind?”
has been asked.
To
answer that I will point to the experiment I made last summer with the rocket I
am shown holding in my hand in the accompanying photograph.
The
gases shot from that small rocket at a speed of 8,000 feet (more than 1-1/2
miles) per second.
That
is more than 90 miles per minute— enough to send the gases away from the moon
forever if fired straight up from her surface. The earth, however, has four
times the gravitation force of the moon, and the velocity of the rocket
launched into space from our world will have to be four times that great, or
360 miles a minute. That speed may be easily attained by a larger rocket. And
thus it can be readily seen that the time required to leave the earth and
penetrate into space will be brief indeed.
But
how will it be possible for one to live inside this projectile?
First,
I have demonstrated that the rocket can be started without a jar sufficient to
endanger life within it. Neither need there be any when the rocket lands. For
it will be so equipped that it may be guided to earth as easily and safely as
an airplane.
Of
course, the passenger must breathe. The simplest plan of supplying oxygen is by
evaporating a supply of liquid oxygen carried along. The cold of space would
make the transportation of liquid oxygen a comparatively easy matter.
Insulation from the cold of space would be by the ordinary “thermos bottle”
principle which we know works well down to a temperature nearly that of outer
space.
The
danger developing from friction would be nil, as no noticeable heat would be
generated because the speed through the dense part of the atmosphere would not
exceed 2,000 feet per second and the great increase in speed necessary to leave
the earth would occur from 20 to 700 miles above terra firma.
According
to my calculations, the trip to the moon can be made in 48 hours or an average
speed of 4,750 m.p.h., an astonishing rate when compared with the swiftest
methods of present-day transportation.
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