The Telephone (Group 2)

Alexander Graham Bell

A telephone, or a phone, is an instrument designed for the simultaneous transmission and reception of the human voice. The telephone is simple to operate, and offers its users an immediate, personal type of communication that cannot be obtained through any other medium. As a result, it has become the most widely used telecommunications device in the world. Billions of telephones are in use around the world. The telephone was invented by Alexander Graham Bell.

The Light Bulb (Group 3)

Thomas Alva Edison

Incandescent lamp ​is a device that produces light. This happens when any solid or gas is heated by combustion or resistance to an electric current. The colour of the light it gives off depends of the characteristic of the material used.

The first lamp created was as in 1858 with a carbon-arc lamp. It was never widely used because it requiered too much power.  The original model improved constantly: with the use of platinum strips by Sir Humpry Davy and  the use of powdered charcoal by Frederick de Moleyns, that didn't last long enough.

The Penicillin (Group 4)

Alexander Fleming

Penicillin is the first and most used antibiotic, derived from mold. It’s a drug that kills bacteria and is used to treat infections. In 1928 Scottish bacteriologist Alexander Fleming observed that the mold grown on a fluid medium, said substance was capable of killing many common bacteria that infected humans.

Sir Alexander Fleming was born In 1881 on Scotland. He was a bacteriologist, with a gist for original observation. He made history when he discovered penicillin. He studied medicine at Sts. Mary’s Hospital Medical School in 1901, and in 1908 he won the gold medal as top medical student at the University. 

The Airplane (Group 5)

Wilbur Wright

Airplane, also called aeroplane or plane,

is a vehicle designed for air travel that has wings and one or more engines. The plane is heavier than air, and it has some basic components like: the wing system to sustain it in flight, tail surfaces to stabilize the wings, movable surfaces to control the attitude of the plane in flight, and a power plant to provide the thrust necessary to push the vehicle through the air. Wright brothers were the inventors and aviation pioneers.