Describes the various parts of the brain and the nervous system and how they function to enable us to think, feel, move, and remember.

Text and photographs taken with an electron microscope examine such items as bird feathers, fleas, skin, mold, and blood.

Text and microscopic photographs introduce the parts of the human body, including internal organs, systems, and other aspects of human physiology.

Presents the thousands of tiny lenses found in a fly's compound eye, the feathery antennae that a moth uses to sniff out food, and many more microscopic marvels.

"The discovery of DNA in 1869 changed the world forever. Each subsequent discovery - such as DNA's double helix structure and the nucleotides it contains - dramatically increased humanity's understanding of our own bodies. Of course, the invention of the microscope was crucial to these discoveries. As technology advances and scientists develop more powerful instruments, their knowledge of DNA also increases. Age-accessible main text, augmented with...

Shows pictures of objects which are too small, too far away, or too fast to see without mechanical assistance such as microscopes, telescopes, X-rays, and other techniques.