Ключевые слова: antique, background, beat, beginnings, checking, clock, closeup, concepts, countdown, counting, deadline, endurance, eternity, falling, flowing, full, glass, half, heap, hourglass, ideas, instrument, material, measurement, measuring, objects, objectsequipment, oldfashioned, on, past, patience, sand, speed, time, timer, transparent, urgency, waiting, yellow,