And since he was also a skilled engineer, he thought a lot about adapting these movements to machines, and thus dreamed up the idea of aeroplanes and submarines. Synthetic rubber is made of certain kinds of hydrocarbons. Of these, butadiene is the most important. These hydrocarbons are obtained from coal, crude petroleum and alcohol. By the end of the Second World War, the combined production of synthetic rubber by USA and Germany alone was almost equal to that of natural rubber.
Synthetic rubber is more oil resistant than natural rubber.
In the international market, natural rubber is facing severe competition from synthetic rubber. He followed up the work of Hans Christian Oersted on the interaction between magnets and electric currents, developing a rule for determining the direction of the magnetic field associated with an electric current. The ammeter and ampere are named after him. In a civil war, Raziya was defeated and captured at Kaital, near Kamal. She was murdered while asleep in a jungle on October 13, 1240.