What senses do we have? And what do they have to do with the Deutsches Optisches Museum? We will go looking for answers to these questions and discover more about the structure and function of our eyes. But that is not all – we will also play tricks on our eyes by checking out some optical illusions.

We will go on a journey back in time to the 19th century and check out the workshop belonging to Master Carl Zeiss. What did he produce? What was it like to work there? Who were Ernst Abbe and Otto Schott? You will find out answers to these and other fascinating questions during your visit.

Participants discover how we see, what lenses are and how they work – all in a manner tailored to the particular age group. We will then have a look at the eyeglasses on display. Long ago, visual aids were sold at the marketplace and often looked pretty spectacular. Participants will also have the chance to try on a few pairs of historic eyeglasses.

Why do stars twinkle? Why can we only see one side of the moon? In the exhibit devoted to planetarium technology, participants can explore and discover the star-filled night sky, tellurians and projection equipment.

How does a microscope work? Who needs a telescope? How long have color photos been around? And why do people in old photos often look sad? Short histories about selected optical devices are enhanced by many hands-on activities.

Worksheets to round off students' visit to the museum (no answer keys available):