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.
Top definition. O'clock. a) The hour on a 12 hour clock. b) The position of something to you, 12 O'clock being straight ahead, six being behind, 3 O'Clock 90 degrees clockwise and 9 being 90 degrees anti-clockwise. The time is 9 O'clock (well, 21:29) and having found no good tv, I turned on the PC and defined this word and a half.