Also known as: au.
AU has various meanings in the Scientific & Educational category. Discover the full forms, definitions, and usage contexts of AU in Scientific & Educational.
The astronomical unit is a unit of length, roughly the distance from the Earth to the Sun. The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. The radius of the earth's orbit is defined as one astronomical unit.
Scientific & EducationalSymbol:"Au" Atomic Number:"79" Atomic Mass: 196.97amu. Gold is one of the transition elements. Gold is one of the Earth's precious metals. You will find the yellow colored metal used in jewelry, electronics, coins, satellites, and even medicines. Gold is very non-reactive and will not oxidize in air.
Scientific & EducationalAutism is a neurodevelopmental disorder characterized by impaired social interaction, verbal and non-verbal communication, and restricted and repetitive behavior. Parents usually notice signs in the first two years of their child's life. These signs often develop gradually, though some children with autism reach their developmental milestones at a normal pace and then regress.
Scientific & EducationalAngstrom , unit of length used chiefly in measuring wavelengths of light, equal to 10 10 metre, or 0.1 nanometer. It is named for the 19th-century Swedish physicist Anders Jonas Angstrom.
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