Florida State University
Florida State University: Magnet Lab: Discovery of Electromagnetism
Two scientists share the credit for discovering, and then interpreting, the phenomenon of electromagnetism.
National High Magnetic Field Laboratory
Magnet Academy: Hans Christian Orsted
A discovery by Hans Christian Orsted forever changed the way scientists think about electricity and magnetism. While preparing to perform an experiment during a lecture at the University of Copenhagen, he found that the magnetized needle...
National High Magnetic Field Laboratory
Magnet Academy: Timeline of Electricity and Magnetism: 1820 1829
Hans Christian Orsted's accidental discovery that an electrical current moves a compass needle rocks the scientific world; a spate of experiments follows, immediately leading to the first electromagnet and electric motor.
Science Struck
Science Struck: Electromagnetic Waves: Origin and Theory
Discusses the history of the discovery and study of electromagnetism, the scientists who worked on it, the basic principle, how wavelength and frequency are related, and types of electromagnetic waves.
Khan Academy
Khan Academy: Experiment: What's the Shape of a Magnetic Field?
See drawing from Hans Christian Orsted's lab notebook showing an experiment in which an electric charge passing through a wire seemed to create a magnetic field!
Curated OER
Smithsonian Libraries: Scientific Identity: Hans Christian Orsted (1777 1851)
A portrait of Hans Christian Orsted from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.
Curated OER
Smithsonian Libraries: Scientific Identity: Hans Christian Orsted (1777 1851)
A portrait of Hans Christian Orsted from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.
Curated OER
Smithsonian Libraries: Scientific Identity: Hans Christian Orsted (1777 1851)
A portrait of Hans Christian Orsted from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.
Curated OER
Smithsonian Libraries: Scientific Identity: Hans Christian Orsted (1777 1851)
A portrait of Hans Christian Orsted from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.
Curated OER
Smithsonian Libraries: Scientific Identity: Hans Christian Orsted (1777 1851)
A portrait of Hans Christian Orsted from the Dibner Library of the History of Science and Technology, made available through the Smithsonian Institution's Scientific Identity Collection.