Understanding Sundials and Latitude

The video tutorial explains how to set up and use a sundial by adjusting it to the correct geographic latitude and time of year. It covers the concepts of latitude and longitude, using Munich as an example for setting the sundial. The tutorial also provides detailed instructions on adjusting the sundial for the correct month and time of day, and how to use it to read the true astronomical time.

What is the first step in preparing your sundial for time reading?

• Adjusting the black slider

• Setting the correct geographic latitude

• Aligning the sundial with the equator

• Choosing the correct month

Which scale should you use if you are in the southern hemisphere?

• The scale showing Berlin

• The scale showing Sydney

• The opposite scale

• The scale showing New York

How are latitudes numbered in the northern hemisphere?

• From 0 to 360°

• From 0 to 180°

• From 0 to 90°

• From 90° to 180°

What is the latitude of Munich?

• 30° North

• 48° North

• 50° South

• 60° North

Why is it important to set the correct month on the sundial?

• To align with the equator

• To match the time zone

• To account for Earth's orbit around the Sun

• To adjust for daylight saving time

What should you do after setting the sundial to the correct latitude and month?

• Adjust the outer ring

• Set the sundial to 12:00 PM

• Hang the sundial by its black string

• Align the sundial with the North Star

How can you improve the visibility of the sunbeam on the sundial?

• By slightly readjusting the bridge

• By moving the sundial to a shaded area

• By changing the latitude setting

• By adjusting the black string

What does the sunbeam projecting on the Roman numeral 9 indicate?

• It is 3:00 in the afternoon

• It is 12:00 noon

• It is 9:00 in the evening

• It is 9:00 in the morning

What is the final step to read the true astronomical time using the sundial?

• Turn the sundial until a sunbeam shines through the hole

• Set the sundial to 12:00 PM

• Use a digital clock for reference

• Align the sundial with the North Star

Where can you find more information on the workings of the sundial?

• In a geography textbook

• At the local library

• On the sundial's instruction manual

• At www.pet.com