The SpillNot~? is an ingenious and effective device that aims to solve the everyday problem of transporting an open cup of hot beverage like tea or coffee without spilling. It not only avoids spills under the normal conditions in which a drink is usually carried, but also remains effective in extreme conditions such as giving full turns in a vertical or a horizontal plane. To help explain the operation of this device, instead of cup, a smartphone was placed on the base of a SpillNot. The acceleration components, parallel and perpendicular to the base, were obtained using the built-in accelerometer. The analysis of these measures sheds light on the physical mechanisms of the SpillNot.
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