DATECHPROGALL Education

the human eye is the sense organ in the body to see and identify the objects. the cornea is a layer of the eye that protects eye from the dust and it acts as a protective membrane. behind the cornea, a humorous liquid is filled in a space. the iris contains a pupil in it, iris allows the light to pupil.iris is a muscular diaphragm. the pupil is a hole.it catches the light and does not reflect back.it is in black color. the lens is the backward covered portion to form the image from the retina. NOTE 1: the distance between the lens and retina is about 2.5 cm. due to the deficiency of vitamin A in our body, these symptoms may cause to eye:  night blindness, cornea failure. the retina contains the 125 million receptors called rods and cones which receives the light signal data from the eye and sends it to the brain through 1 million optic nerves.   NOTE 2: the lenses are; concave,convex,bi concave,bi convex,plano concave,plano convex, concavo-convex. HUMAN EYE SIGHTS: there are ...

 Ok guys, these are the inventions and scientific names which changes the world like this:  tuning Fork invented by the conig. The sound was recorded and reproduced for the first time by Edison next. The first law of thermodynamics was introduced by the Joul. Weber scientists introduced the molecular theory of magnetism. And this theory of magnetism improved by the eving. Scientists coulomb invented the law of magnetic forces. Bennett invented the gold-leaf electroscope. Michael Faraday introduced electrolysis. The first theory of Hanson oerested is invented by a wire carrying current behaves like a magnet. E Goldstein proposed the positive rays. JJ Thomson proposed the cathode rays. Proton was discovered by  Rutherford. Neutron was discovered by James Chadwick. Discovery of electrons by millicon. X-rays  invented by rontgen. Artificial radioactivity was discovered by Joliot and iren curie. Artificial transmutation was introduced by Rutherford. Nuclear fission ...