In 1871, the Italian physicist Carlo Marangoni took a sponge soaked in oil and threw it into a pond. He observed surface area movement caused by the difference in area rigidity among oil and h2o phases and measured the velocity of wave propagation. Arranged by the Oxford College Press Pakistan, https://advocateinkarachi68124.verybigblog.com/35172120/the-greatest-guide-to-legal-services-karachi