are welcome but not required
11Tip — A tip (also called a gratuity) is a payment made to certain service sector workers in addition to the advertised price of the transaction. The amount of a tip is typically calculated as a percentage of the transaction value before applicable… …
12Iran, ancient — Introduction also known as Persia historic region of southwestern Asia that is only roughly coterminous with modern Iran. The term Persia was used for centuries, chiefly in the West, to designate those regions where Persian language and… …
13physical science — physical scientist. 1. any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and astronomy. 2. these sciences collectively. [1835 45] * * * Introduction the systematic study of the inorganic world …
14Passive house — The term passive house ( Passivhaus in German) refers to the rigorous, voluntary, Passivhaus standard for energy use in buildings. It results in ultra low energy buildings that require little energy for space heating or cooling. [… …
15Mennonite — Total population 1,478,540 Founder Peaceful Anabaptists Regions with significant populations United States, Democratic Republic of the Congo, Canada …
16Eid ul-Fitr — عيد الفطر EĪd ul Fiṭr (Festivity after Completing the Fasting Month of Ramadan) Eid ul Fitr meal, Malaysia Official name Arabic: عيد الفطر EĪd ul Fi …
17Mass surveillance — A closed circuit television camera. Mass surveillance is the pervasive surveillance of an entire population, or a substantial fraction thereof. Modern governments today commonly perform mass surveillance of their citizens, explaining that they… …
18Gay bathhouse — Gay bathhouses, also known as gay saunas or steam baths (and sometimes called, in gay slang in some regions, the baths or the tubs ), are places where men can go to have sex with other men. Not all men who visit such bathhouses consider… …
19Acupuncture — Intervention Needles being inserted into a patient s skin. ICD 10 PCS 8E0H30Z …
20Technology of the Discworld — The technology depicted in Terry Pratchett s Discworld novels takes two forms: magical and mechanical. Nearly all technology early in the series is at least partially magical, but in recent books there has been something of an industrial… …
