50 inventions that changed the world

30 Dec 2014 1:40 PM IST

Phonograph
X-ray
World Wide Web
Touchscreen Display
Telex Machine
Telescope
Sonar Waves
Satellite
Refrigerator
BJP leader Ram Kripal Yadav. (Photo: PTI)
Radio Telescope
Radar
Printer
Personal Computer
Optical Fibre
MRI Scanner
Microscope
Microprocessor
Lens
Locomotive
Air Conditioner
LCD Television
Laser light
3D Printer (File Photo)
Internet (Representational image)
Digital Camera
Incandescent light bulb
Supercomputer
Hard Disk Drive
GPS Device
Email
Electric Generator
Dynamo generator
Electron Microscope
Electric Motor
Electric Guitar
Black and White Television
Magnetic recording
CD/DVD
Film projector
Transistor Radio
Colour Television
Cloning
Integrated Circuit
Cellular Phone
Batteries
The Authority has reduced the ceiling of the domestic carriage charge to 35 paisa per minute from the existing 65 paisa per minute
Photography
Printing Press
Punched cards

Phonograph