A pilot pouring Red Bull mid-flight demonstrates Newton’s laws in action. At constant speed, the liquid flows smoothly, showing Newton’s First Law—inertia keeps it in motion until acted on by an external force. When the plane accelerates or slows down, the liquid shifts due to inertia. Gravity pulls the liquid downward while the glass pushes back, illustrating Newton’s Third Law. Even during turbulence, the liquid’s movement reveals the balance of forces at play. (Video: ©luke.czepiela) Follow @