TECHNOLOGY

CALCULATOR

There were many people who invented calculators in history. All of this inventions had something wrong. Poleni, in 1820 invented a four operation mechanical calculator, it first worked as an adding machine, until it started to evolve.
































THERMOMETER

The inventor of the thermometer is not defined, as many people acknowledged the merit. It was invented in 1724, but Daniel Gabriel Farenheit improved the method and the thermometer he invented is used nowadays. His name is used as a system of measuring degrees for temperature. It worked as a tube which contained water and gas (although later they used mercury). It showed how hot or cold the air was.

STAPLER

The stapler was invented by Samuel Slocum in 1841. Before the stapler papers, especially official papers which needed to be transported from one place to another got lost as the papers were lose. With it papers could be stuck together and they could be easily distributed.























SEWING MACHINE

Thomas Saint invented de sewing machine in 1790. Before it was invented, a lot of manual work had to be done by women, craft work was done and it was selled in markets, but it took a lot of time. Thanks to the sewing machine, work was much less. It was invented to lower down the amount of manual work and so that in a faster process you could achieve more reasults. It is used to stich materials together with thread.






















TYPE WRITER

Christopher Sholes invented it in 1868. This was a mechanical machine for writing in characters similar to those produced by printers.





HOT-AIR BALLOON
First human-carrying flight technology. The heated air inside of the balloon weighted less than the air outside of the balloon,allowing it to raise and carry a considerable amount of weight. In 1709 was built the first hot-air balloon by Bartolomeu de Gusmao







AMBULANCE

Vehicle for transportating sick or injured people to places of treatement for an illness. They were first used in the 1487 by the spanis

PIANO
Musical instrument played using a keyboard.It is widely employed in classical, jazz, traditional and popular music for solo and ensemble performances, accompaiment, and for composing and rehersal. Built up in 1700 by Bartolomeu Cristofori















TELEGRAPHS

A machine that could send a clicking signal across a wire. Samuel F.B. invented it in 1837