Product Description: Cells are very small but very important parts of all plants and animals. After simple microscopes were invented, scientists discovered cells and began studying them. Cell biologists today use powerful electron microscopes to learn even more about cells...read more

Product Description: Thomas Edison was called a wizard, which was a good nickname for one of history’s most famous inventors and the holder of more than 1,000 patents. Often improving upon the ideas of others, Edison and his assistants perfected the incandescent lightbulb, and created the first successful electrical power system, the alkaline battery, and the phonograph, which played recorded sound...read more

Product Description: Magnetism is a powerful force that can attract one object to another. It is found in nature, but it also can be made by using electricity. The opposite is true, too Magnetism can be used to make electricity. Electromagnetism the close relationship between these forces makes possible many important things in modern life, from electric motors and power generators to lasers, cell phones, and computers...read more

Product Description: Everything is made up of atoms. There are many kinds of atoms, and groups of one kind of atom come together to create elements. Physicists, the scientists who study atoms, ask questions like: What do atoms do? How do atoms interact with each other? They are also interested in the energy that atoms produce...read more

Product Description: Marie Curie was the first woman to win the world’s highest honor in science, the Nobel Prize. Working in a time when women were not allowed to attend college, Marie Curie was a scientific pioneer. Her study of atoms led to the discovery of new elements and a new branch of science that studied radioactivity...read more