50 inventions that changed the world
- 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
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