By:Ricardo Alfonso Castillo Acosta No.6 5"D"

THE TOP TEN INVENTIONS OF THE 20th CENTURY

Well, I choose the 20th century because important people invented things that they help us to our evolution.

I think that in this century were invented things that we use today like cars,planes, computer for do our homework of the school and all techonolgy that we love

Now I will tell you the invents that i consider the most importan for me in 20th century

TOP TEN

1-Rock N Roll
I like this music, actually is this most important for me.It's was invented by Elvis Preasly in 1950

2-Computer
Today, everybody use a computer is important for any work that you have to do

3-Cell phones
The celll phone is indispensable for the comunication

4-Internet
I think is the most importan invent of this century because i use it to do my homework and have fun

5-DVD
I use the dvd for see movies in my house with friends

6-Television
Is neccesary to know about the things that happend in the world and see my favorite tv programs

7-CD's
I love the music and I have diffents cd's of many artists

8-Video Games
When I was a child everyday I played video games

9-Electric Guitar
it's the most popular instrument in the world, with guitar you can make good sounds

10-Ipod
It's a instrument that I consider important because I can listen music everywhere I go.

1994(Internet)

The internet was invented by Leonard Kleinrock, is considered like the most interesting invention in the world

1982(CD's)

The cd is a digital optical media used to store any information.The CD was created by Dutchman Kees Immink, Philips, and Japanese Toshitada Doi, Sony, 1982

1978(Laptop)

The laptop is a mobile personal computer. The first laptop was considered as the Epson HX-20, developed in 1978

1972(X-Ray and Videogames)

The x-ray was invented in 1972 by the scient William Crookes

The video games are a software created for entertainment in general and based on the interaction between one or several people. The video games were invented Thomas T. WAS Goldsmith Jr. and Estle Ray Mann

1971(Digital Clock)

A digital clock is a clock type that bases its operations on digital electronics for marking time.The digital clock was invented in 1971 by engineer Bulgarian Petar Ptrov

1963(VCR)

Ampex introduced the first video tape recorder commercially successful in 1963

1956(Video Camera)

The video camera was invented in 1956 by the enginner  Vladimir

1946(Calculator and Computer)

The first calculators were abacus is a device used to perform arithmetic calculations

The computer is an electronic machine that receives and processes data into information useful

1943(Microwave)

The microwave is a eating instrumento that was invented by Percy Spencer in 1942

1938(Pen)

A pen is a writing instrument, is the most popular and used worldwide. Invented in 1938 by brothers Hungaria George Biro y Laszlo Biro

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