A unicycle has only a single wheel and its rider sits above that wheel, pedaling furiously to stay upright. When shshe is traveling straight forward at a steady pace, she can maintain stability by always doing what?

To maintain stability while riding a unicycle, the rider needs to constantly adjust their balance by making small corrections. One way to achieve this is by maintaining a forward pedaling motion.

Explanation:
1. Maintaining forward pedaling motion: When the rider pedals forward, it creates a gyroscopic effect, which helps to stabilize the unicycle. This effect is a result of the rotating wheel's angular momentum, which adds stability by resisting changes in direction. The rider needs to keep pedaling to maintain this stabilizing effect.

2. Making small corrections: Riding a unicycle requires constant adjustments to maintain balance. The rider needs to shift their body weight subtly and make slight steering movements to counteract any shifts in the unicycle's position. By doing this, the rider can keep the unicycle upright and prevent it from tipping over.

It is important to note that riding a unicycle requires practice, as it involves a combination of balance, coordination, and continuous adjustment of body movements to stay upright.