Visionlearning Glossary

Irish physicist born at Leighlin Bridge, County Carlow (1820-1893). Tyndall was one of the first scientists to recognize the natural greenhouse effect and to identify the relative importance of various greenhouse gases. He also showed that ozone is an oxygen cluster (O3), not a hydrogen compound. In addition, Tyndall was a prolific an inventor, devising a respirator for fireman, the foghorn, and the light pipe, which was the progenitor of fiber optics. For further information, see John Tyndall.

Used in the following modules: The Hydrologic Cycle

The French physicist born in Paris, France (1900 – 1958 CE). Shared the 1935 Nobel Prize in Chemistry with his wife Irène Joliot-Curie for their discovery of artificial radioactivity. For further information see: Frederic Joliot-Curie

The French scientist born in Paris, France (1897 – 1956 CE). Daughter of Marie Curie and Pierre Curie, Irène shared the 1935 Nobel Prize in Chemistry with her husband Frédéric Joliot-Curie for their discovery of artificial radioactivity. For further information see: Irene Joliot-Curie

A metric unit of work and energy. 1 joule (J) = 1 kg·m²/s².

Used in the following modules: Energy

English physicist born in Salford (1818-1889). In 1840, Joule published a paper detailing what is now called Joule’s Law, which describes the relationship between the current through a resistor and the heat lost from the system. He continued his studies on heat and its relationship to mechanical work, concluding that heat is a form of energy. He developed the theory of conservation of energy, and, subsequently, the first law of thermodynamics. The joule, an SI unit of energy, is named after him. For further information see James Prescott Joule.

Used in the following modules: Energy