Flat land, Refraction

26-April-2020 Sunday
Daybit's answer to “Experience on horizon visibility range using the example of Kyiv - Chernigov”

25-April-2020 Saturday
Reply to the post “Experience in horizon visibility range using the example of Kyiv - Chernigov”

10-June-2017 Saturday
Flat earth: how the perception of the coastline is changing. Refraction.


v20221217