Industries & Research
The land of America has produced many great inventors and scientists. The period between 19th and 20th century was that of speedy growth for scientific development. However, the foundation for this development was laid prior to this period. The great scientists from America worked in various fields of science to make path-breaking discoveries and inventions. Benjamin Franklin, Thomas Alva Edison, George Washington Carver, Barbara McClintock and many others brought glory to America by making valuable contributions in this field.
The economy of the United States is the world’s largest national economy. Its nominal GDP was estimated to be nearly $14.7 trillion in 2010, approximately a quarter of nominal global GDP. Its GDP at purchasing power parity was also the largest in the world, approximately a fifth of global GDP at purchasing power parity.
The famous companies based at USA includes Wal-Mart, JP Morgan, Google, IBM, Microsoft, Intel, Nike, GE, Apple, Chevron, Honeywell, Coco cola, Walt Disney, Amzon.com, Pfizer, Boeing, Ford motors, Citigroup, AT&T & many more.