In 1871, the Italian physicist Carlo Marangoni took a sponge soaked in oil and threw it into a pond. He observed surface area motion caused by the real difference in surface rigidity between oil and water phases and calculated the velocity of wave propagation. Karachi, the funds of Sindh and https://advocateinkarachi27835.widblog.com/90886523/the-basic-principles-of-law-firm-in-karachi