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Re:VertiGo – A Wall-Climbing Robot including Ground-Wall Tra... by drewkett on Saturday January 02, 2016 @12:08PM (#10826781)
Not necessarily. The weight of the vehicle is offset by the friction of the wheels on the wall.

Imagine an ant. It doesn't have an external force such as a propeller. It can climb up walls but it can't fly in any capacity.

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