Time in Astronomy

• Experience: live presentation
• Duration: 

The live show explains how the ancient people noticed natural seasonal changes that repeats every year and how those changes helped them with time measurement and invention of the calendars. By following the apparent movement of the sun, moon and other astronomical objects on the celestial sphere determined the duration of the day, month, year and the change of seasons and other. 

It will be interesting to find out the difference calculating solar and sidereal time as well as what are all kinds of watches made for the purpose of measuring time; of sand, water, mechanical, digital all the way to the most precise atomic watches.