Hi, I've been learning about gyroscopic precession recently and I feel like I get it. I understand that when the flywheel of a gyroscope is spinning its angular moment plus the angular moment created by the torque from the force of gravity makes it turn. But I were thinking about the forces in a gyroscope and couldn't figure out what force is keeping the flywheel up. I know of the force of gravity and the normal force on the pivot connected to the rod connecting to the flywheel but to me that doesn't seem to be enough to keep the flywheel in the air. What's the other forces? And bonus question, my physics book showed me that dθ = dL / L. I can understand this in a trigonometric way with tanθ = opposite / adjacent = dL / L. I can't make the connection between my knowledge in trigonometry and dθ = dL / L. The tanθ != dθ is what's bothering me.