What name, reportedly coined by a mathematician's 9-year-old nephew, refers to 1 followed by 100 zeros?

Coffinite, a mineral first described from the Colorado Plateau in the 1950s, is an important ore of which radioactive m… What term describes the study or collecting of coins? Jerome Robbins's ballet "Fanfare" debuted in New York in 1953 on the same day which monarch was crowned? The first Olympic Games held in the United States, in 1904, coincided with a world's fair in which city? Which phrase, coined by Boston's Columbian Centinel in July 1817, often describes James Monroe's presidency? Which word, coined in 1899, refers to how geography such as rivers and borders shapes a nation's foreign affairs? Which word for unintelligible jargon was coined in 1944 by Congressman Maury Maverick, inspired by a turkey's call? Co-Jack cheese is a blend of Monterey Jack and which other cheese?