pentaquark (plural pentaquarks)
(particle) Any of a class of subatomic particles (previously hypothetical, since detected, subject to confirmation) consisting of a group of five quarks (compared to three quarks in normal baryons and two in mesons), or more specifically four quarks and one antiquark (symbol Ī).
Source: Wiktionary
20 September 2024
(verb) require as useful, just, or proper; āIt takes nerve to do what she didā; āsuccess usually requires hard workā; āThis job asks a lot of patience and skillā; āThis position demands a lot of personal sacrificeā; āThis dinner calls for a spectacular dessertā; āThis intervention does not postulate a patientās consentā
The first coffee-house in Mecca dates back to the 1510s. The beverage was in Turkey by the 1530s. It appeared in Europe circa 1515-1519 and was introduced to England by 1650. By 1675 the country had more than 3,000 coffee houses, and coffee had replaced beer as a breakfast drink.
