Scientists use advanced lab techniques to examine every detail of the ruby slippers to understand what they are made of, the age of the materials, and their present state. As a result, they learned how to protect them from deteriorating further.
What were humans like in the past? What have archaeologists and biologists learned about our history?
Scientists use advanced lab techniques to examine every detail of the ruby slippers to understand what they are made of, the age of the materials, and their present state. As a result, they learned how to protect them from deteriorating further.