The 15th parallel north is a circle of latitude that is 15 degrees north of the Earth's equatorial plane. It crosses Africa, Asia, the Indian Ocean, the Pacific Ocean, Central America, the Caribbean and the Atlantic Ocean.
In geochemistry, hydrology, paleoclimatology and paleoceanography δ15N (pronounced "delta fifteen n") or delta-N-15 is a measure of the ratio of the two stable isotopes of nitrogen, 15N:14N. Two very similar expressions for δ15N are in wide use in hydrology.
N15 may refer to. N15, a postcode district in the N postcode area of London. N15, a Subaru Impreza turbo-charged. N15 (Long Island bus), New York. Nissan Almera car. LSWR N15 Class steam locomotive. N15 may refer to : Nitrogen-15, a stable, non-radioactive isotope of nitrogen. roads.
Natural nitrogen (7N) consists of two stable isotopes, nitrogen-14, which makes up the vast majority of naturally occurring nitrogen, and nitrogen-15. Fourteen radioactive isotopes (radioisotopes) have also been found so far, with atomic masses ranging from 10 to 25, and one nuclear isomer, 11mN.
N is an action-arcade physics-based platformer featuring an acrobatic pacifist ninja with a thirst for gold. N v2.0 public beta is now open. We put the N in 'fun', you'll add the 'FU'.