What exactly is Big Data? This video defines and explains Big Data as well as Hadoop and MapReduce in simple language.
Rating Newest Oldest. Best Answer: Time is an illusion in that it's not a real, *natural* feature of the universe. Time is not absolute, meaning there's no Cosmic Master Clock that ticks off the correct time for the entire universe.
Definition of o'clock. 1  1 : according to the clock the time is three o'clock. 2  2 âused for indicating position or direction as if on a clock dial that is oriented vertically or horizontally an airplane approaching at six o'clock.