What is a microscope? How does it help in finding out what disease a patient is suffering from? re the
Answers
Explanation:
Dutch opticians Janssen and son are said to have developed the first microscope in 1595 by combining two glass lenses (one an objective and one an eyepiece). This was before the first mention of the term, which denotes any instrument used to see elements that are invisible to the naked eye. It comes from the Greek mikros (small) and skopein (to look). But the true fathers of microscopy in biology are unquestionably the Englishman Robert Hooke and Dutchman Antoni Van Leeuwenhoek. Thanks to his microscope with three objective lenses, Hooke made many observations (insect wings, fleas, lice, etc.) that he drew, annotated and compiled in his book Micrographia, published in 1667. It was the first documented work of the microscopic world. We have him to thank for the term "cell" – the basic unit of life (our body contains 10,000 billion of them!) – given to the small sac-like structures that he made out on cork slides.