Submarines are among the most remarkable engineering achievements ever created. Unlike ordinary ships that remain on the surface of the water, submarines can dive …

The steam engine is one of the greatest inventions in human history. Long before electric motors and diesel engines became common, steam engines powered factories,…

Solar energy has become one of the fastest growing sources of renewable electricity around the world. As electricity prices continue to rise and environmental conce…

Independence Day is one of the most meaningful occasions for every Indian. Celebrated on 15 August, the day reminds us of the long struggle for freedom and the sac…