Видео ютуба по тегу Timekeeping Science

Science & History Episode 17: Timekeeping Part 3: From Calendars to Clocks
Science & History Episode 17: Timekeeping Part 3: From Calendars to Clocks
Unveiling the Mastermind Behind Our Revolutionary Timekeeping System | Science Sleuths
Unveiling the Mastermind Behind Our Revolutionary Timekeeping System | Science Sleuths
📕 3 Ancient Timekeeping Devices That Should Not Have Worked
📕 3 Ancient Timekeeping Devices That Should Not Have Worked