Reading the time on a sundial is quite easy In bright sunshine the gnomon on the sundial casts a clear shadow This shows the time correct by the sun
Dating to the 19th dynasty, or the 13th century , the sundial was found on the floor of a workman's hut, in the Valley of the Kings, the Sundials are the oldest known instruments for telling time The surface of a sundial has markings for each hour of daylight As the Sun moves across the sky
หวยนิเคอิบ่าย SUNDIAL AT SHRUBLANDS He who hesitates is SUNDIAL AT THE GRANGE , CALNE , WILTS SIR CHRISTOPHER WREN'S SUNDIAL , ST PAUL'S CATHEDRAL , 299 Experiment: · Bring your sundial outside in an open space on a sunny day, shortly before noon · Rotate your sundial until the strawʼs shadow aligns with the
