joule
Definition from Wiktionary, the free dictionary
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English[edit]
Etymology[edit]
Named after the English physicist James Prescott Joule.
Pronunciation[edit]
- enPR: joul, IPA: /dʒuːl/, X-SAMPA: /dZul/
- IPA: /dʒaʊl/, X-SAMPA: /dZaUl/
- Rhymes: -uːl
- Homophone: jewel
Noun[edit]
joule (plural joules)
- In the International System of Units, the derived unit of energy, work and heat; the work required to exert a force of one newton for a distance of one metre. Also equal to the energy of one watt of power for a duration of one second. Symbol: J
- The Greisen–Zatsepin–Kuzmin limit (GZK limit) is a theoretical upper limit on the energy of cosmic rays (high energy charged particles from space) coming from "distant" sources. The limit is 5×1019 eV, or about 8 joules. The limit is set by slowing-interactions of cosmic ray protons with the microwave background radiation over long distances (~163 million light-years). The limit is at the same order of magnitude as the upper limit for energy at which cosmic rays have experimentally been detected. For example, one ultra-high-energy cosmic ray has been detected which appeared to possess a record 50 joules (312 million TeV) of energy (about the same as a 60 mph baseball).WP
Translations[edit]
derived unit of energy, work and heat
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Czech[edit]
Noun[edit]
joule m
- joule (the derived unit of energy, work and heat)
Derived terms[edit]
Dutch[edit]
Noun[edit]
joule m (plural joules)
Finnish[edit]
Noun[edit]
joule
French[edit]
Pronunciation[edit]
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Audio (Paris) (file)
Noun[edit]
joule m (plural joules)
- joule (unit of measure)
Italian[edit]
Noun[edit]
joule m (invariable)
