- Thomas Horrior
- Al-Beruni
- Aristotle
- Galileo-Galilei
- d
-
First telescope was invited in 1608 in Netherlands.
- Photo-Voltaic Cells
- Photo-Nuclear Cells
- Photo-Clectric Cells
- Photo-Protic Cells
- a
-
Solar Panel Cell or Photovoltaic Cell convert the energy of light into electric energy.
- Cornea
- Optic Nerve
- Retina
- Iris
- C
-
Retina is the most sensitive nerve tissue of eye.
Its located back side on eye.
It receives images and forward it to brain.
There are seven parts of human eye which are Sclera, Iris, Cornea, Pupil, Lens, Retina and Optic Nerves.
- Diverging Lenses
- Converging Lenses
- Deflecting Lenses
- Reflecting Lenses
- B
-
Roger Bacon invented first Convex Lens in 1250.
Roger Bacon was a Britain Doctor.
- 01
- 02
- 03
- 04
- B
-
Primary Memory (RAM & ROM)
Secondary Memory (Hard Drive, CD & etc)
- Physical Part of Computer
- Input device
- Output device
- A Computer Program
- d
- Faraday
- Douglas Carl Engelbart
- Bill Gates
- James Chadwick
- B
-
Douglas Carl Engelbart invented the computer mouse in 1960.
He was an American Engineer.