Know The Inventions

I'm overwhelmed after watching these likes and shares. ..to be honest I almost forgot My This page...but from now on I'll promise u to write it regularly nd provide you Lots nd lots of Facts nd knowledge...Thanks for liking Guys😊😊😊😊😊

Speakers were first invented by a German known as Ernst Siemens in 1877. In 1898, Englishman Sir Oliver Lodge, patent the second speaker and in 1924 Chester W. Rice and Edward Washburn Kellogg two General Electric researchers, patented the modern, moving coil, direct radiator, loudspeaker, which became the prominent design for all speakers.

The First Screw was invented by Archimedes about 250 BC and it's used for raising and lowering the water level!!!!!!

The first electric powered ceiling fan was invented by Philip Diehl in 1882!!!!

here the photo of first ceiling fan company "Hunter" !!

The first door lock invented by an egyptian guy names kee pem about 4000 years ago!!! the first lock and key are made from the wood!!!!

The First Light switch was Invented in 1884 by John Henry Holmes!!!!!!!!!!!

Today's Invention>>>>>>>
The first Refrigerator is made by William Cullen in 1748 at University of Glasgow!!!!!!!!!!

Hello pls like my page to know the invention of oue life's helping tools.......pls like it!!!!!