1932(Electric Guitar)

The guitar was one of the first instruments in suit, the first guitar invented and manufactured can be attributed to the brand Rickenbackerin suit, the first guitar invented and manufactured can be attribted to the brand Rickenbacker

1927(Antibiotics)

The antibiotics are chemical produced by a living or synthetic derivative at low concentrations it kills or inhibits the growth of certain types of sensitive organisms, usually bacteria. It was invented by Selman Waksman

 

1925(TV)

Television is a system for transmitting and receiving moving pictures and sound at a distance. This term was first used in 1900 by Constantin Perski

1921(Highway)

The first highway in Spain was built in 1921 and extended between Barcelona and Mataró

1910 (The traffic lights)

The traffic lights are signaling devices positioned at intersections of streets, pedestrian crossings and other places for regular vehicular traffic and pedestrians. it was invented by  J.P. Knight

 

1910 (Rutherford atomic model)

Rutherford's atomic model is an atomic model or theory about the internal structure of the atom proposed by chemist and physicist Sir Ernest Rutherford, New Zealand to explain the results of his "experiment gold foil," held in 1910.

 

 

1903(electrocardiogram)

The electrocardiogram was invented by  Alexander Muirhead  in 1903.It's a graphical representation of the heart's electrical activity, obtained with an electrocardiograph