Device name -finder -country

 Device Name - Finder - Country

 01 Electron - MJ Thomson - England

 02 Protran - Goldstein

 03 Proton - E. Rutherford - England

 04 Neutron - James Chadwick - England

 05 Cyclotron - Lawrence - America

 06 Uranium - Martin Klaproth - Germany

 07 Nucleus - Rutherford

 08 Nuclear Reactor - Enrico Fermi

 09 Ozone - Christian Schonbein - Germany

 10 Cycles - John K.  Macmillan - Scotland

 11 Bicycle Tires - John Dunlop - UK

 12 Motorcycle - G Daimler - Germany

 13 Scooter - G.  Bradshaw - UK

 14 Atomic Number - Henry Moseley - England

 15 Atomic Theory - John Dalton - England

 16 Atomic Bomb - Auto Hahn - England

 17 Atomic Structure - Neil Bohr and Rutherford -

 18 Radio Telegraphy - David Edward Hughes - UK

 19 Radio Telegraphy - G.  Marconi - Italy

 20 Radio Dharmata - Antoine Bacquerel - France

 21 Radio Activism - Henry Becquerel

 22 Radium - Marie Curie and Poiri - France

 23 Dynamite - Alfred Nobel

 24 P. H. Scale - S.  P. Sorenson

 25 Hydrogen - Henry Cavendish - England

 26 Nitrogen - Daniel Rather Ford - England

 27 Plutonium - G.  T. Seaborg - America

 28 Magnesium - S.  Humphrey Davy - England

 29 Photography (in metal) - L.A.  Denguere, J.  nipsey

 30 Photography (Paper) -W.  Fox Talbot

 31 Photography (film) -Jon Corbutt - America

 32 Oxygen - Carl Wilhelm Schlie, Jozef Priestley - Sweden (United Kingdom)

 33 Inert Gas Organ - Ramsay and Raleigh

 34 Thorium - Berzelius

 35 Television(Mechanical) - Johnlogie Baird - England(UK)

 36 Television (Electronic) - P. T. Farnsberth - America

 37 Barometer - Evangelista Torcelli - Italy

 38 locomotive - George Stephenson - United Kingdom

 39 Steam Engine (Condenser) - James Watt - Scotland

 40 Steam Engine (Piston) - Dham Newcomen - UK

 41 Diesel Engine - Rudolf Karl Diesel - Germany

 42 Locomotive Railroad - Richard Trekithick - UK

 43 Jet Engine - Sir Frank Whitley - England