Linda > 01-01-2021, 04:04 PM
Linda > 01-01-2021, 04:09 PM
Antonio García Jiménez > 01-01-2021, 07:50 PM
-JKP- > 01-01-2021, 08:05 PM
Quote:[font=Tahoma, Verdana, Arial, sans-serif]I was confused. In the last astronomical image that I put the letter p does not mean part. I don't think it means principium either. It most likely means puncta, which was a measure of time equivalent to a quarter of an hour.[/font]
Aga Tentakulus > 02-01-2021, 12:58 AM
-JKP- > 02-01-2021, 03:08 AM
Quote:"Using a system that the Sumerians had developed circa 2000 BC, the Babylonians established the foundations of modern timekeeping. They divided the daylight hours into 12 parts and the nights into 12 more, defining the 24 segments that we now refer to as You are not allowed to view links. Register or Login to view..[/font]
Babylonian astronomers used a sexigesimal (base 60) system to split each of these 24 divisions into 60 units (minutes), which were subdivided in turn into 60 more parts (seconds). "
Aga Tentakulus > 02-01-2021, 07:57 PM
Antonio García Jiménez > 03-01-2021, 08:25 PM
Antonio García Jiménez > 11-01-2021, 09:56 AM
Antonio García Jiménez > 15-01-2021, 08:48 AM