INVENTIONS AND DISCOVERIES - 6

Neon Gas …………..Ramsy, travers
Neutron ………… Chadwick
Nuclear Fission … Otto Hahn, Bohr and Fermi
Nyclon Plastic ……...Carothers
Oxygen ………. J.B. Preistly
Origin of Species … Charles Darwin
Parachute ………… A.J Garnerian
Pencillin ….Alexander Fleming
Photography (film) …..John Carbutt
Periodic Law ……….. Mendeleef
Phonograph …….. Edison
Photonographic Shorthand …... Pitman
Photograph …….. Dauguerre
Principle of lever (S.P Gravity) ……Archimedes
Phototherapy …… N.R. Finseon
Positive Electrons …… Anderson
Powerloom …………Cartwright
Pneumatic Tyre ……. Dunlop
Printing press ……….. Caxton
Printing Types …… John Guttenberg
Psycho –analysis …… Dr. Sigmund Freud