The history of mirrors dates back to ancient times when mankind first saw reflections in a pond or river, and considered it magic. At first, polished stone or metal was used in the first early man made mirrors. Later, glass was used in combination with metals like tin, mercury and lead to create mirrors. Today, combining glass and metal is still the design used in almost all modern mirrors. The two-way mirror was originally called the transparent mirror. Just like a regular mirror, there is a silver coating on the glass of a two-way mirror, which, when applied to the back of the glass, renders the glass opaque and reflection on it's face under ordinary light conditions.
Tell Me Why Questions for preschoolers | Tell Me Why science questions | Tell Me Why science questions and answers | Tell Me Why answers to hundreds of question | Tell Me Why Questions and Answers | Tell Me Why Questions | Questions on Tell Me Why |
Post A Comment: