Breadcrumb Home 1A10.36 - 1 Nanosecond Code Number: 1A10.36Demo Title: 1 NanosecondCondition: GoodPrinciple: Units of MeasureArea of Study: MechanicsEquipment: One nanosecond sign.Procedure:This sign is exactly the length that light will travel in one nanosecond. The picture above is a negative image of the real thing so that the words are visible.