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Chapter 4 Reply from the Observatory of Cambridge

Word Count: 1526    |    Released on: 19/11/2017

e board-room of the Gun Club. There, after some discussion, it was agreed to consult the astronomers regarding the astronomical part of the enterprise.

celebrated for its astronomical staff. There are to be found assembled all the most eminent men of science. Here is to be seen at work that powerful telescope which enabled Bond to resolve the nebula of Andromeda, and Clarke to disco

ed in the fo

Cambridge Observat

n Club at

GE, Oct

ur favor of the 6th

ambridge in the name

our staff was immedi

d expedient to r

h have been propos

to transmit a proje

tance which separates the

sufficient initial velocity? and, consequently, at what moment ought it t

present herself in the most favorable p

the cannon to be aimed at which is i

upy in the heavens at the moment

"Is it possible to transmit

s a given distance the action is nine times less. Consequently, the weight of a shot will decrease, and will become reduced to zero at the instant that the attraction of the moon exactly counterpoises that of the earth; that is to say at 4752 of its passage. At that instant the proj

is the exact distance which separ

e earth; in astronomical language, it is at one time in apogee, at another in perigee. Now the difference between its greatest and its least distance is too considerable to be left out of consideration. In point of fact, in its apogee the moon is 247

third q

tial velocity will be continually decreasing, it will occupy 300,000 seconds, that is 83hrs. 20m. in reaching the point where the attraction of the earth and moon will be in equilibrio. From this

se moment will the moon present herself

be that the final passage remaining to be accomplished will be 214,976 miles. But although the moon passes her perigee every month, she does not reach the zenith always at exactly the same moment. She does not appear under these two conditions simultaneously, except at long intervals of time. It will be necessary, therefore, to wait for

what point in the heavens o

ss beyond the range of the terrestrial attraction. But, in order that the moon should reach the zenith of a given place, it is necessary that the place should not exceed in latitude the declination of the luminar

ill the moon occupy in the heavens at t

. But, inasmuch as it is equally necessary to take into account the deviation which the rotary motion of the earth will impart to the shot, and as the shot cannot reach the moon until after a deviation equal to 16 radii of the earth, which, calculated upon the moon's orbit, are equal to about eleven degrees, it becomes n

s proposed to the Observatory of Camb

sum

nted in a country situated betw

inted directly toward

propelled with an initial velo

t 10hrs. 46m. 40sec. of the 1st

charge, precisely at midnight on the 4th of Decemb

be prepared to set to work at the moment determined upon; for, if they should suffer this 4th of December to go by, they wil

eir disposal in respect of all questions of theoretical astronomy; and

stronomic

. BE

he Observator

img

Contents

From the Earth to the Moon
Chapter 1 The Gun Club
19/11/2017
From the Earth to the Moon
Chapter 2 President Barbicane's Communication
19/11/2017
From the Earth to the Moon
Chapter 3 Effect of the President's Communication
19/11/2017
From the Earth to the Moon
Chapter 4 Reply from the Observatory of Cambridge
19/11/2017
From the Earth to the Moon
Chapter 5 The Romance of the Moon
19/11/2017
From the Earth to the Moon
Chapter 6 Permissive Limits of Ignorance and Belief in the Un
19/11/2017
From the Earth to the Moon
Chapter 7 The Hymn of the Cannon-Ball
19/11/2017
From the Earth to the Moon
Chapter 8 History of the Cannon
19/11/2017
From the Earth to the Moon
Chapter 9 The Question of the Powders
19/11/2017
From the Earth to the Moon
Chapter 10 One Enemy v. Twenty-Five Millions of Friends
19/11/2017
From the Earth to the Moon
Chapter 11 Florida and Texas
19/11/2017
From the Earth to the Moon
Chapter 12 Urbi Et Orbi
19/11/2017
From the Earth to the Moon
Chapter 13 Stones Hill
19/11/2017
From the Earth to the Moon
Chapter 14 Pickaxe and Trowel
19/11/2017
From the Earth to the Moon
Chapter 15 The Fete of the Casting
19/11/2017
From the Earth to the Moon
Chapter 16 The Columbiad
19/11/2017
From the Earth to the Moon
Chapter 17 A Telegraphic Dispatch
19/11/2017
From the Earth to the Moon
Chapter 18 The Passenger of the Atlanta
19/11/2017
From the Earth to the Moon
Chapter 19 A Monster Meeting
19/11/2017
From the Earth to the Moon
Chapter 20 Attack and Riposte
19/11/2017
From the Earth to the Moon
Chapter 21 How a Frenchman Manages an Affair
19/11/2017
From the Earth to the Moon
Chapter 22 The New Citizen of the United States
19/11/2017
From the Earth to the Moon
Chapter 23 The Projectile-Vehicle
19/11/2017
From the Earth to the Moon
Chapter 24 The Telescope of the Rocky Mountains
19/11/2017
From the Earth to the Moon
Chapter 25 Final Details
19/11/2017
From the Earth to the Moon
Chapter 26 Fire!
19/11/2017
From the Earth to the Moon
Chapter 27 Foul Weather
19/11/2017
From the Earth to the Moon
Chapter 28 A New Star
19/11/2017
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