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Transcript

The most useful invention

Presentationт

Students of the 9th grade

Anna Prokopenko

Things that surround us in everyday life seem simple and clear. But what would our world be like if there was no wheel, electric lamp or the Internet? Today we will talk about the most useful invention. (I think.)

Inventions

1. Electric lamp

2. Telephone

3. Computer

4. Battery

5. Glasses

6. Electric motor

7. Clock

8. Photography

9. Telegraph

10. Compass

топTop inventions of mankind

Telephone and smartphone

Telephone and smartphone

In my opinion, the telephone and smartphone are the most useful human inventions. After all, it used to take a lot of time for people to connect with each other. And also modern smartphones can do what used to be fantastic.

Phone

History

The first prototype of a modern telephone was patented in 1876 by the American inventor Alexander Bell. Bell's tube served alternately to transmit and receive sound. She did not have a bell, and the call of the subscriber was made through the handset with the help of a whistle. The range of such a device did not exceed 500 meters. In addition to Bell, about three dozen scientists, including McDonough, Edison, Gray, Dolbeer, Blake, Irwin and Felker, claimed to be the first to invent the telephone.

Smartphone

The ideas of combining the functionality of a cellular phone and a pocket personal computer appeared almost immediately after the appearance of the first pocket personal computers in the early 90s of the XX century. The first such attempt is the IBM Simon phone, first presented to the public as a concept in 1992 by IBM. In addition to telephone functions, the device could perform the functions of an organizer, send and receive faxes, allowed to work with e-mail, and also contained several games. There were no control keys, all actions were performed using the touch screen.

Sources

-https://tut-cikavo.com/tekhnolohii/vynakhody/920-10-najbilsh-znachushchikh-vinakhodiv-yaki-vplinuli-na-rozvitok-lyudstva

-https://uk.wikipedia.org/wiki/%D0%A2%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD

-https://uk.wikipedia.org/wiki/%D0%A4%D0%B0%D0%B9%D0%BB:IBM_Simon_Personal_Communicator.png

-https://uk.wikipedia.org/wiki/%D0%A1%D0%BC%D0%B0%D1%80%D1%82%D1%84%D0%BE%D0%BD#%D0%86%D1%81%D1%82%D0%BE%D1%80%D1%96%D1%8F_%D1%81%D0%BC%D0%B0%D1%80%D1%82%D1%84%D0%BE%D0%BD%D1%96%D0%B2_%D1%96_%D0%BA%D0%BE%D0%BC%D1%83%D0%BD%D1%96%D0%BA%D0%B0%D1%82%D0%BE%D1%80%D1%96%D0%B2

-https://futurenow.com.ua/vynahody-shho-zminyly-svit-top-10/

Thank you for attention!

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