Part 7 (1/2)
CHAPTER IV.
A CHAPTER FOR THE CORNELL GIRLS.
No incident worth recording occurred during the night, if night indeed it could be called. In reality there was now no night or even day in the Projectile, or rather, strictly speaking, it was always _night_ on the upper end of the bullet, and always _day_ on the lower. Whenever, therefore, the words _night_ and _day_ occur in our story, the reader will readily understand them as referring to those s.p.a.ces of time that are so called in our Earthly almanacs, and were so measured by the travellers' chronometers.
The repose of our friends must indeed have been undisturbed, if absolute freedom from sound or jar of any kind could secure tranquillity. In spite of its immense velocity, the Projectile still seemed to be perfectly motionless. Not the slightest sign of movement could be detected. Change of locality, though ever so rapid, can never reveal itself to our senses when it takes place in a vacuum, or when the enveloping atmosphere travels at the same rate as the moving body.
Though we are incessantly whirled around the Sun at the rate of about seventy thousand miles an hour, which of us is conscious of the slightest motion? In such a case, as far as sensation is concerned, motion and repose are absolutely identical. Neither has any effect one way or another on a material body. Is such a body in motion? It remains in motion until some obstacle stops it. Is it at rest? It remains at rest until some superior force compels it to change its position. This indifference of bodies to motion or rest is what physicists call _inertia_.
Barbican and his companions, therefore, shut up in the Projectile, could readily imagine themselves to be completely motionless. Had they been outside, the effect would have been precisely the same. No rush of air, no jarring sensation would betray the slightest movement. But for the sight of the Moon gradually growing larger above them, and of the Earth gradually growing smaller beneath them, they could safely swear that they were fast anch.o.r.ed in an ocean of deathlike immobility.
Towards the morning of next day (December 3), they were awakened by a joyful, but quite unexpected sound.
”c.o.c.k-a-doodle! doo!” accompanied by a decided flapping of wings.
The Frenchman, on his feet in one instant and on the top of the ladder in another, attempted to shut the lid of a half open box, speaking in an angry but suppressed voice:
”Stop this hullabaloo, won't you? Do you want me to fail in my great combination!”
”h.e.l.lo?” cried Barbican and M'Nicholl, starting up and rubbing their eyes.
”What noise was that?” asked Barbican.
”Seems to me I heard the crowing of a c.o.c.k,” observed the Captain.
”I never thought your ears could be so easily deceived, Captain,” cried Ardan, quickly, ”Let us try it again,” and, flapping his ribs with his arms, he gave vent to a crow so loud and natural that the l.u.s.tiest chanticleer that ever saluted the orb of day might be proud of it.
The Captain roared right out, and even Barbican snickered, but as they saw that their companion evidently wanted to conceal something, they immediately a.s.sumed straight faces and pretended to think no more about the matter.
”Barbican,” said Ardan, coming down the ladder and evidently anxious to change the conversation, ”have you any idea of what I was thinking about all night?”
”Not the slightest.”
”I was thinking of the promptness of the reply you received last year from the authorities of Cambridge University, when you asked them about the feasibility of sending a bullet to the Moon. You know very well by this time what a perfect ignoramus I am in Mathematics. I own I have been often puzzled when thinking on what grounds they could form such a positive opinion, in a case where I am certain that the calculation must be an exceedingly delicate matter.”
”The feasibility, you mean to say,” replied Barbican, ”not exactly of sending a bullet to the Moon, but of sending it to the neutral point between the Earth and the Moon, which lies at about nine-tenths of the journey, where the two attractions counteract each other. Because that point once pa.s.sed, the Projectile would reach the Moon's surface by virtue of its own weight.”
”Well, reaching that neutral point be it;” replied Ardan, ”but, once more, I should like to know how they have been able to come at the necessary initial velocity of 12,000 yards a second?”
”Nothing simpler,” answered Barbican.
”Could you have done it yourself?” asked the Frenchman.
”Without the slightest difficulty. The Captain and myself could have readily solved the problem, only the reply from the University saved us the trouble.”
”Well, Barbican, dear boy,” observed Ardan, ”all I've got to say is, you might chop the head off my body, beginning with my feet, before you could make me go through such a calculation.”
”Simply because you don't understand Algebra,” replied Barbican, quietly.
”Oh! that's all very well!” cried Ardan, with an ironical smile. ”You great _x+y_ men think you settle everything by uttering the word _Algebra_!”