11 inventions that changed the world

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Penicillin

Invented by Alexander Fleming in 1928

First drug that was effective against many previously serious diseases

Atomic bomb

Robert Oppenheimer in 1939

An explosive device that derives its destructive force from either fission or a combination of fission and fusion.

Morse code

Each character (letter or numeral) is represented by a unique sequence of dots and dashes. The duration of a dash is three times the duration of a dot.

A method of transmitting textual information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment.

The Computer

Program-controlled by patch cables and switches made in 1946

The US-built ENIAC (Electronic Numerical Integrator and Computer) was the first electronic general-purpose computer.

Music

The creation, performance, significance, and even the definition of music vary according to culture and social context.

Music is an art form whose medium is sound and silence.

Television

Invented by Philo Farnsworth in 1927

Television is a telecommunication medium for transmitting and receiving moving images

Airplane

On December 17, 1903

The Wright brothers, Orville and Wilbur were two Americans credited with inventing and building the world's first successful airplane

Electricity

Benjamin Franklin conducted extensive research on electricity in the 18th century.

Otto von Guericke invented a machine that produced static electricity in 1660.

Steam engine

Invented by Thomas Savery in 1698

A steam engine is a heat engine that performs mechanical work using steam as its working fluid.

Gun powder

Was the first chemical explosive,attributed to Chinese alchemy in the 11th century

Is a mixture of sulfur, charcoal, and potassium nitrate. When the composition is ignited, the sulfur and charcoal act as fuels, while the saltpeter works as an oxidizer

The Wheel

The first use of the wheel for transportation was probably on Mesopotamian chariots in 3200 BC.

A wheel is a device that allows heavy objects to be moved easily through rotating on an axle through its center.