"
"I always admired your candor, Barbican," said Ardan; "it's a noble
quality, a grand quality!"
"Don't mention it," replied Barbican, turning towards M'Nicholl, still
in the dark, and addressing him exclusively; "You see, my dear Captain,
the period at which the Moon's invisible side receives at once its light
and heat is exactly the period of her _conjunction_, that is to say,
when she is lying between the Earth and the Sun. In comparison therefore
with the place which she had occupied at her _opposition_, or when her
visible side was fully illuminated, she is nearer to the Sun by double
her distance from the Earth, or nearly 480 thousand miles. Therefore, my
dear Captain, you can see how when the invisible side of the Moon is
turned towards the Sun, she is nearly half a million of miles nearer to
him than she had been before. Therefore, her heat should be so much the
greater."
"I see it at a glance," said the Captain.
"Whereas--" continued Barbican.
"One moment!" cried Ardan.
"Another interruption!" exclaimed Barbican; "What is the meaning of it,
Sir?"
"I ask my honorable friend the privilege of the floor for one moment,"
cried Ardan.
"What for?"
"To continue the explanation.
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