Temporal measurement, chronometry, takes two distinct period forms: the calendar, a mathematical tool for organizing intervals of time, and the clock, a physical mechanism that counts the passage of time. In day-to-day life, the clock is consulted for periods less than a day whereas the calendar is consulted for periods longer than a day. Increasingly, personal electronic devices display both calendars and clocks simultaneously. The number (as on a clock dial or calendar) that marks the occurrence of a specified event as to hour or date is obtained by counting from a fiducial epoch—a central reference point.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is a mathematical tool used for organizing intervals on clocks? 
Ah, so.. unanswerable

Most definitions of sexual orientation include a psychological component, such as the direction of an individual's erotic desires, or a behavioral component, which focuses on the sex of the individual's sexual partner/s. Some people prefer simply to follow an individual's self-definition or identity. Scientific and professional understanding is that "the core attractions that form the basis for adult sexual orientation typically emerge between middle childhood and early adolescence". Sexual orientation differs from sexual identity in that it encompasses relationships with others, while sexual identity is a concept of self.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is the difference between sexual idenity and sexual orientation?
Ah, so.. sexual identity in that it encompasses relationships with others, while sexual identity is a concept of self.

Penny Marshall's 1990 film Awakenings, which was nominated for several Oscars, is based on neurologist Oliver Sacks' 1973 account of his psychiatric patients at Beth Abraham Hospital in the Bronx who were paralyzed by a form of encephalitis but briefly responded to the drug L-dopa. Robin Williams played the physician; Robert De Niro was one of the patients who emerged from a catatonic (frozen) state. The home of Williams' character was shot not far from Sacks' actual City Island residence. A 1973 Yorkshire Television documentary and "A Kind of Alaska", a 1985 play by Harold Pinter, were also based on Sacks' book.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Whose real story is 'Awakenings' based on?
Ah, so..
Oliver Sacks