Zetta- Zetta- Zetta is a decimal unit prefix in the metric system denoting a factor of 10 or . The prefix was added as an SI prefix to the International System of Units (SI) in 1991 and has the symbol Z. Zetta is evocative of the Latin numeral , meaning "seven". Therefore it was used to denote the seventh power of 1000. A prefix of the same value, "hepta", was informally introduced a few years before the promulgation of zetta. It was formed from the Greek (), also meaning "seven". "Hepta" never received official sanction and is obsolete. Zeta (), although
Peta Hewitt Peta Hewitt Peta Hewitt (born 1966) is the Australian artist best known for her YouTube channel (in 2015) and her long running science-fantasy series "Terinu" (both in print and on-line) (in 1996) for which she is both writer and artist. Peta started creating YouTube content in 2015, where she reviews 'Adult Colouring Books' providing her viewers with a detailed look at the Colouring books, its pages as well providing hints and tips and show casing her completed pictures. Peta has branched out into Art Supply reviews and Tutorials about colouring. Peta's First comic was Snowy Sam, this was a children's