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.
âInscription on Hermione Granger's borrowed Time-Turner. A Time-Turner is a special timepiece in which an Hour-Reversal Charm has been encased, for added stability. It is a device used for time travel, and it resembles an hourglass on a necklace.