Thus the Victoria found herself balanced, and her ascensional force insufficient to raise her. [Please select]
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But, as the Spider climbs, the float becomes shorter in proportion; and the time comes when a balance is struck between the ascensional force of the thread and the weight carried. [Please select]
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But the management of two balloons would, necessarily, be very difficult, in view of the problem how to keep them both at an equal ascensional force. [Please select]
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