Watch: This Kolkata girl has created world's first underwater smart drone
Kolkata girl Sampriti Bhattacharya has invented an underwater drone that can map ocean floors and explore the deep sea.
Feb 27, 2016, 12:47 PM IST
Underwater drone
Kolkata girl Sampriti Bhattacharya has invented an underwater drone that can map ocean floors and explore the deep sea.
Feb 27, 2016, 12:47 PM IST