Invention Stories

Electric Bulb

History of electric light, which adds to our daily convenience, bears testimony of many scientists, physicist’s efforts. Some people who took a step  forward in the field were James Lindsay, Frederick Moleyns, Heinrich Göbel, Humphrey Davy and Warren Rue and Thomas Edison.
 
Humphrey Davy offered a miner lamp by working out on formulation for electric arc. In year 1802, he demonstrated workings of electric arc with the help of 2 wires- one attached to battery and other to the thin charcoal piece. In 1820, Warner Rue produced light bulb by using platinum coil in empty tube and passing electric current through it.  

Digicam

In October 1969, Willard Boyle and George Smith discovered Charged Coupled Device (CCD) which is known to be heart of every digital camera. By 1970, Boyle  and Smith built CCD into earliest solid state video camera. And soon after, in year 1975, both of them showcased first CCD camera with sharp image quality for the broadcast TV.

Not until 1981, Sony Corporation launched prototype digicam, Mavica electronic still camera. This camera recorded pictures as the magnetic impulses on small 2 inch video floppy. Capturing of these images was done through 2 CCD chips.

Ball Point Pen

The history of ball pen can be traced back to 1880s, when the first patent on a ball pen was issued to John Loud.This leather tanner attempted to make a writing  object with which he could write on the leather he tanned.

The second innings for the ball pen began with the first and very famous stylized fountain pen. Invented by Cross, this fountain pen is identified as daddy to the ball pens. This invention triggered more of brainstorming that lasted till ball pen was born. Ever wondered, such a small item has given the world so much.