Article 370 of the Indian constitution used to give special provision to the region of Jammu and Kashmir. It allows the state to have its own constitution, a separate flag and independence over all matters except foreign affairs, defence and communications. It was adopted in 1947 by then Prime Minister Jawaharlal Nehru.
A seconds pendulum is a pendulum whose period is precisely two seconds i.e, one second for a swing in one direction and one second for the return swing.