Tera-

• terahertz radiation: electromagnetic waves within the band of frequencies from 0.3 to 3 THz. Visible light is around 500 THz.
• terabit and terabyte, units used in data storage. Tebi-, or 2⁴⁰ is the closest binary prefix being ~9.95% greater than 10¹².
• teragram: equal to 10⁹ kg. The Great Pyramid of Giza has a mass of about 6 Tg.
• terasecond: approximately 31,558 years
• teralitre: equal to 10⁹ m³. Lake Zurich contains about 4 TL of water.
• terawatt: used to measure total human energy consumption. In 2010 it was 16 TW.
• terametre : Light travels 1.079 Tm in one hour.