it was absolutely impossible to impress upon any body whatever
a velocity of 12,000 yards per second; that even with such a
velocity a projectile of such a weight could not transcend the
limits of the earth's atmosphere. Further still, even regarding
the velocity to be acquired, and granting it to be sufficient,
the shell could not resist the pressure of the gas developed by
the ignition of 1,600,000 pounds of powder; and supposing it to
resist that pressure, it would be less able to support that
temperature; it would melt on quitting the Columbiad, and fall
back in a red-hot shower upon the heads of the imprudent spectators.

Barbicane continued his work without regarding these attacks.

Nicholl then took up the question in its other aspects. Without
touching upon its uselessness in all points of view, he regarded
the experiment as fraught with extreme danger, both to the
citizens, who might sanction by their presence so reprehensible
a spectacle, and also to the towns in the neighborhood of this
deplorable cannon. He also observed that if the projectile did
not succeed in reaching its destination (a result absolutely
impossible), it must inevitably fall back upon the earth, and
that the shock of such a mass, multiplied by the square of its
velocity, would seriously endanger every point of the globe.
Under the circumstances, therefore, and without interfering with
the rights of free citizens, it was a case for the intervention
of Government, which ought not to endanger the safety of all for
the pleasure of one individual.

In spite of all his arguments, however, Captain Nicholl
remained alone in his opinion. Nobody listened to him, and he