Shop Windows to the Universe

Hands On Mineral Identification helps you to identify over 14,500 minerals! By M. Darby Dyar, Ph.D. See our DVD collection.
Portrait of Niels Bohr
The Niels Bohr Archive, Copenhagen

Niels Bohr

Niels Bohr was a Danish physicist who lived between 1885-1962. He investigated atomic structure, modifying Rutherford's old model of an atom by confining electrons to orbits of specific radii. Bohr also claimed that an atom's chemical properties are determined only by the valence (outermost) electrons.

After participating in the Manhattan Project, which produced the first nuclear bomb, Bohr spent the later years of his life promoting peaceful uses of atomic energy.

Shop Windows to the Universe Science Store!

Our online store includes books on science education, ranging from evolution, classroom research, and the need for science and math literacy!

Windows to the Universe Community

News

Opportunities

You might also be interested in:

Science, Evolution, and Creationism

How did life evolve on Earth? The answer to this question can help us understand our past and prepare for our future. Although evolution provides credible and reliable answers, polls show that many people turn away from science, seeking other explanations with which they are more comfortable....more

Ernest Rutherford

Ernest Rutherford was a New Zealand-born physicist who lived between 1871-1937. He is considered the father of nuclear physics because of his theories on atomic structure. Rutherford discovered that protons...more

Florence Bascom

Florence Bascom (1862-1945) was one of the first female geologists in the United States and her colleagues regarded her as one of the nationís most important geologists. In 1896 she was the first woman...more

Niels Bohr

Niels Bohr was a Danish physicist who lived between 1885-1962. He investigated atomic structure, modifying Rutherford's old model of an atom by confining electrons to orbits of specific radii. Bohr also...more

Marie Curie

Marie Curie was a physicist and chemist who lived between 1867-1934. She contributed greatly to our understanding of radioactivity and the effects of x-rays. She was born Maria Skłodowska in Warsaw,...more

Albert Einstein

Albert Einstein was a German physicist who lived between 1879-1955. His special and general theories of relativity, theory of Brownian motion, work in quantum physics, statistical mechanics, and on the...more

Robert Goddard

Robert Goddard was an American physicist who lived between 1882-1945. He was a pioneer of modern rocketry who discovered that liquid fuel is more efficient than solid fuel. Although Goddard's first rocket...more

Werner Heisenberg

Werner Heisenberg was a German physicist who lived between 1901-1976. He developed new theories in quantum mechanics which agreed with the results of previous experiments. Heisenberg is most famous for...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF