History of Time Crossword Puzzle

QUESTIONS LIST: atomic : a clock that measures time by monitoring the resonant frequency of atoms, sundial : a device that catches the sun and casts a shadow to tell the time, constellations : time is mapped by the movement of these across the night sky, seasons : a rudimentary way to tell the time, where the four _ are observed, pocket : where these small watches were kept before they moved to our wrists, analogue : before digital we were _ , obelisk : used in ancient egypt to capture shadows and tell the time, railway : the establishment that saw time standardised across the uk, hourglass : a time machine that used water or sand that fell through it, wristwatch : a time device that was first popularised in world war one as pocket watches were inconvenient