Who invented the light bulb? Not only did Thomas Edison render service but other scientists from the rest of the world took part too.
Although the light bulb doesn’t belong to the twenty-first-century invention, the presence of this device has altered the human civilization and carried a significant impact on our lives.
The light bulb has evolved in countless shapes since it’s found in the early 19th century.
In the early stage, it used to be in the form of incandescent light bulb highlighting a filament – a medium for electric current.
Unlike the conventional one, the latter-day version (LED bulbs for instance) is energy-saving and more long-lasting.
Who Invented the Light Bulb?
A tribute owing to the light bulb invention is frequently addressed to Thomas Edison – an American inventor bearing revolutionary in technology.
This guy successfully introduced and patented his finding in 1879. However, other figures are deserving of esteem for their meritorious research and development on a light bulb.
Moreover, their role in promoting applied science can’t be brushed away.
Before Edison’s popular creation flourished and renowned in the world, an Italian inventor named Alessandro Volta had begun his research on the subject of producing electricity in 1800.
During this period, the person already dealt with his early practical approach popularly known as a voltaic pile.
His stunning finding includes discs comprising copper and zinc. The Elements are piled in an alternating way and larded with cardboards saturated in saline water.
Once both ends of the copper wire are connected, the pile eventually generates electricity.
Davy and Joseph Swan then improved Volta’s Idea
Volta’s notable discovery had inspired an English inventor as well as chemist called Humphry Davy.
In short, the brilliant creativeness of the American originator was subsequently carried on by Davy.
Don’t you know that this person is renowned for his share in creating the globe’s first electric lamp? The method used is simple, i.e., connecting the Volta’s finding (voltaic piles) to charcoal electrodes.
Found 1802, Davy’s awe-inspiring was, later on, recognized as an electric arc lamp.
Today’s modern electric bulbs and lamps use the basic principles of Davy.
Another figure you can’t turn a blind eye is nothing else but Warren de la Rue.
The British national fruitfully established the light bulb progressively designed.
Instead of applying copper, the scientist took full advantage of a coiled platinum filament.
Unfortunately, it was not commercially accepted in public due to the exorbitant cost of platinum.
The price matter finally ended when Joseph Swan went with better development by using carbonized paper filaments. These conducting threads efficiently replaced platinum regarding cost.
The Structure of Light Bulb
A light bulb comes with a structure that’s relatively simple.
The base part is comprised of two metal contacts – screw thread contact and electrical foot contact.
The essential elements are linked to the ends of a so-called electrical circuit.
They are fastened to stilted wires. Aside from being attached to the metal contacts, these wires tie the slender metal filament placed in the hub of the light bulb.
For the filament stand straight, a glass mount supports it.
When you see closer on the glass bulb, it’s filled with wires, filaments and not to mention the inert gas.
Speaking of the vital part that the light bulb has to offer – the filament, you might find it important to examine. It’s made of tungsten metal that appears to be overly thin yet lengthy.
A 60-watt light bulb usually consists of two meters long tungsten metal with the thickness reaching one-hundredth of one inch.
Tungsten itself is frequently found in incandescent light bulbs.
How Does the Light Bulb Work?
Once the light bulb is connected to the electricity; the electric current streams down using wires and filament.
The current itself contains plenty of free electrons.
Their movement flowing from the negative to the positive area is arguably mass. The bulb glows because the filament wrapped invisible glass sends out a light.
Not only does the component produce radiance but it also keeps it away from overheating. Filament works efficiently protecting the bulb from breaking is because the presence of inert gas helps it.
Simply put, electrons generated from power supply always come across the atoms making up the filament in the light bulb.
Friction between them yields energy causing vibration on atoms.
The choice of conductor matters on the process of heating up on the atoms. If it’s found thinner, the heat escalates easily. The energy level might be multiplied when the electrons are bound.
Once the electrons are in the early shape, they normally deliver the additional energy called photons.
Hence, who invented the light bulb? To make a long story short, Thomas Edison is not the only individual behind this smart invention. Some including Davy and Swan need to have an appreciation from global communities.