''On the two days of the year when the sun is vertically overhead at noon, the stone disk ensures that the entireshaft is in shadow; on all other days, a stripe of sunlight will fall across the shaft. As a result, there can be little doubt that the priests of Edzná had an accurate gauge on thetiming of the sun's zenithal passage.'' VINCENT H. MALMSTRÖM from Dartmouth College. | ''On the two days of the year when the sun is vertically overhead at noon, the stone disk ensures that the entireshaft is in shadow; on all other days, a stripe of sunlight will fall across the shaft. As a result, there can be little doubt that the priests of Edzná had an accurate gauge on thetiming of the sun's zenithal passage.'' VINCENT H. MALMSTRÖM from Dartmouth College. |