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_______ is the easiest and the cheapest source of information.
A fax machine is ________.
A photocopier is _________.
A robot is ______.
An electronic device for locating objects by means of short-wave radio echoes:
An internal combustion engine was invented by ________.
Earthquake is _________.
He calculated pi and developed the Archimedes screw for lifting up water from mines or wells.
He created first mechanical computer, which proved to be the prototype for future computers. Considered to be the ‘Father of Computers’.
He developed a powerful telescope and confirmed revolutionary theories about the nature of the world. Also developed an improved compass.
He developed system of reading for the blind.
He developed the http:// protocol for the internet, making the World Wide Web freely available.
He was a brilliant scientist who played a key role in the development of AC electricity, through the AC induction motor, transformer, and Tesla coil.
Inventor of the steam engine, which was critical in the industrial revolution. His invention of a separate condensing chamber greatly improved the efficiency of steam.
It is an engine of the spacecraft:
It is an instrument for wireless communication.
It is used for medical and surgical purposes and can photograph the inside of the body.
It is used in surgery for conducting painless operation.
It was used for making bombs for large-scale destination:
Italian physicist, credited with inventing the battery. It used zinc, copper and an electrolyte, such as sulphuric acid and water.
One of the greatest ever minds. He invented models that proved workable 3-500 years later.
Radio was invented by:
The dot-and-dash alphabet was invented by _____________.
The electric bulb was invented by________.
Who discovered electricity and invented the Franklin stove?
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