Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Bya> ?p ?o. }
Showing items 1 to 19 of
19
with 100 items per page.
- Bya abstract "In astronomy, geology, and paleontology, bya or "b.y.a." is an initialism for billion years ago. This abbreviation is commonly[citation needed] used as a unit of time to denote length of time before the present. Specifically, one bya is equal to 109 years ago.The "billion" in bya is, by convention, the 109 "billion" of the short scale of the U.S., not the long-scale 1012 "billion" of some European usage. For this reason, there is potential for some confusion; and some scientists prefer the unit Gya, while others prefer Ga (Giga annum). However, bya remains in more widespread use. In 1974 the U.K. switched from the long scale to the short scale.Related units are mya ("million years ago"), and byr ("billion years"). These are traditionally written in lowercase. Ga or Gya has a capitalized first letter instead.".
- Bya wikiPageID "1947892".
- Bya wikiPageRevisionID "577748157".
- Bya hasPhotoCollection Bya.
- Bya subject Category:Chronology.
- Bya subject Category:Metrology.
- Bya subject Category:Units_of_time.
- Bya type Abstraction100002137.
- Bya type Measure100033615.
- Bya type TimeUnit115154774.
- Bya type UnitsOfTime.
- Bya comment "In astronomy, geology, and paleontology, bya or "b.y.a." is an initialism for billion years ago. This abbreviation is commonly[citation needed] used as a unit of time to denote length of time before the present. Specifically, one bya is equal to 109 years ago.The "billion" in bya is, by convention, the 109 "billion" of the short scale of the U.S., not the long-scale 1012 "billion" of some European usage.".
- Bya label "Bya".
- Bya sameAs m.0685wp.
- Bya sameAs Q648908.
- Bya sameAs Q648908.
- Bya sameAs Bya.
- Bya wasDerivedFrom Bya?oldid=577748157.
- Bya isPrimaryTopicOf Bya.