BRAHMAGUPTA :Invented ZERO and known for his contribution in Algebra and Geometry

Jagadish Chandra Bose- detection of microwave signals.- Proved by experimentation that both

animals and plants share much in common.

Satyendra Nath BoseKnown for Boson Particle and Bose Einstein Statistics

Chandrasekhara Venkata Raman (CV Raman)Physicist who won Nobel Prize in 1930 for discovery of Raman Effect

Har Gobind Khoranabiologist who won Nobel Prize in 1968 for his work on biology

Alexander Graham BellInvented Telephone

Thomas Alva Edisoninvented Electric light bulb

Guglielmo MarconiInvented Radio Marie Curie

- Invented radium and polonium- Won noble prize for her contribution

on radioactivity research

Orville & Wilbur WrightInvented Aeroplane

Alexander Graham Bell a Scottish-born scientist and engineer born March 3, 1847 invented Telephone. His Father, grandfather, and brother had all been associated with work on elocution and speech, and both his mother and wife were deaf, profoundly influencing Bell's life's work.

His best friend was Ben Herdman had a flour mill. He explained Graham Bell him what the mill does. At age of 12 they both built a homemade device that combined rotating paddles with sets of nail brushes, creating a simple dehusking machine. The machine was used for many years. In return, John Herdman’s father gave both boys the run of a small workshop in which to "invent".