Note 16 — AT THE NORTH POLE

After trying to explain this impression fifteen months later to a Swiss professor, who spoke little English, he quoted me as saying that the sun at night about the Pole was much lower than at noon. No such ridiculous remark was ever made. In reality the eye did not detect any difference in the distance between the sun and the horizon through the next twenty-four hours. There was no visible rise or set, the night dip of the nocturnal swing of the sun was entirely eliminated. We had, however, several ways of checking this important phenomena, which will be introduced later.