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1665 in England1665 in science1665 non-fiction booksBiology books

Micrographia

Adapted from Wikipedia · Discoverer experience

An antique microscope used by scientist Robert Hooke to make groundbreaking discoveries in the 17th century.

Micrographia: or Some Physiological Descriptions of Minute Bodies Made by Magnifying Glasses. With Observations and Inquiries Thereupon is a very important book written by Robert Hooke. Published in January 1665, it was the first big work from the Royal Society and became the first scientific best-seller. The book excited many people about the new science of looking at very tiny things using tools called microscopes.

In Micrographia, Hooke showed what he saw through different lenses. He made the first drawings of insects and plants as they appear under a microscope. One of his big discoveries was calling the tiny parts he saw in plant cells the “cell”. This name is still used today in biology.

The book was also the first to talk about many small objects and how they look when magnified. It helped people all over the world learn about the world in a whole new way and inspired many scientists to look closer at the tiny details around us. Thanks to works like Micrographia, the study of very small things—microscopy—became an exciting and important part of science.

Observations

Robert Hooke used early microscopes to observe tiny objects, which he described in his book Micrographia. He made fascinating drawings of things like a fly’s eye and the first-ever depiction of a plant cell. Hooke called these cells because they reminded him of the small rooms, or cells, in a monastery.

The book shows detailed drawings of insects, such as lice and fleas, and even everyday objects like the point of a needle, which looked very different under the microscope. Hooke’s work helped people see the world in a whole new way and sparked curiosity about the tiny structures all around us.

Main article: cells

Reception

Published under the support of the Royal Society, the book Micrographia became very popular and helped show that the society was a key scientific group in England. The pictures in the book of tiny things like insects and plants seen through microscopes were exciting and new. The writer Samuel Pepys said it was “the most ingenious book that ever I read in my life”.

Methods

In 2007, Janice Neri, a professor of art history, studied Robert Hooke's methods using newly found notes and drawings. She found that Hooke used a special way to create his pictures, calling them "schemas." This means he built his images by looking at objects from many angles, with different lights, and using various lenses to see tiny details.

Hooke also prepared his specimens carefully so they could be seen through the microscope. He often placed the objects inside a round frame, which helped viewers feel like they were looking through a microscope themselves.

Images

A detailed 17th-century scientific drawing of a flea, showing its tiny legs and body under magnification.
A 17th-century scientific drawing of a louse, made by the scientist Robert Hooke using a microscope.
An old microscope used by scientist Robert Hooke to study tiny objects, displayed in a museum.
A 17th-century scientific drawing showing tiny plant cells and leaves magnified under a microscope.
A detailed scientific drawing of a gnat from an old science book, showing the insect under magnification.
Anatomical illustration of a male hoverfly showing detailed body parts.
A detailed 17th-century scientific drawing showing the structure and motion of a blue fly's wings.

This article is a child-friendly adaptation of the Wikipedia article on Micrographia, available under CC BY-SA 4.0.

Images from Wikimedia Commons. Tap any image to view credits and license.