TY - BOOK TI - Tell Me Why: Science, Sound & Energy "Can Sound Travel Through Water ?" U1 - DVD / TELL CY - Mumbai PB - Excel Home Video KW - Video Enclyclopedia N1 - Sole Distributor in India M/s Excel Productions Audio Visuals Pvt. Ltd; Helping Young Minds Grow; "Award of Excellence" - Film Advisory Board ER -