The Invention History of Fuel Cells

Without energy, would anything exist in the world? Living organisms like you and me and the flora and the fauna require some form of energy to survive. A bike, car, motor, television, everything requires some energy to start up, accelerate and even to stop. Thus, form of energy required for the survival or for the sustainability is termed as the fuel energy. The fuel may be any form of energy. Say for example, the food we consume may be either made of carbohydrates, proteins or even fats which can be converted to the storage form glycogen. Similarly, any form of…

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Invention Story of Fiber Optics

There are people who always want to learn more on what they use and what they employ in day to day life. If you are into such a pool of people, then here is a perfect write up that will make sense over the story behind the invention of fiber optics. The article is centered on the people involved who dedicated their thoughts and energy over the creation of fire optics. There must be controversies in every single action. Those controversies are also recorded in this article. Let us move into the write up and hope it will be better…

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Interfacing dot matrix LED display to 8051

Interfacing dot matrix LED display to 8051 microcontroller. LED dot matrix display. An LED dot matrix display consists of a matrix of  LED’s arranged in a rectangular configuration. The desired character or graphics can be displayed by switching ON /OFF  a desired configuration of LED’s. Common display configurations available are 7×5, 8×8, 7×15, etc. LED dot matrix can be used in simple display applications where the resolution is not a big concern.  The figure below shows the arrangement of LEDs in a typical 7×5 dot matrix display.   Any individual LED or a group of LEDs in the matrix can…

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The Story Behind the Discovery of Electromagnetism

Electromagnetism Once, a naughty child took a little chalk to his teacher. He asked what it was made of. The teacher answered that it was made of atoms. Then, the teacher continued that the atoms were made of electrons, protons and neutrons. The child interrupted and questioned if the chalk is really made of atoms and the rest of the jargon words, why the atoms are not separated and how they are united. The teacher threw a gentle smile and explained that like the joints in his body connected his bones, there were invisible joints in the atoms that keep…

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Invention Story of Electrocardiography (ECG) by Willem Einthoven

Invention of Electrocardiography (ECG) Have you ever wondered about how medical tools and equipments were designed? Ever raised a question if they were designed by a physician himself or a mechanical scholar? If yes, here is an interesting article that will fit your inquisitive nature. Hope you would have come across this device, the most essential electronic medical device, the Electrocardiogram or ECG. Read further to know about the invention story behind this most useful tool. Let us start with a simple definition and a few aspects on the ECG. What is Electrocardiogram?  The basic concept of electrocardiography is attaching…

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Invention History of Phototransistor and Photodiode

Before touching the main topic of the invention history of the phototransistors, it is important to have a basic understanding on what phototransistors and photodiodes are. In simple words, a phototransistor is a transistor operated by light rather than electric current. In brief, a phototransistor is a bipolar transistor enclosed in a transparent case so that light can reach the base collector junction. This being the case of phototransistors, a photodiode is a kind of photo detector that is capable of converting light into either current or voltage based on the mode of operation. To understand it better, a traditional…

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Microprocessor – Invention History & Story Behind the Success of Intel

Microprocessor – Invention History A simple integrated circuit that carries the central processing unit of a computer is the Microprocessor. Are you not fascinated to know what the history behind the invention of this tool is? If yes, this write up will help you know completely about how it was designed and the brains behind the scene. Before you know about the invention history of a microprocessor, let us check out what a real microprocessor is and what it does. Microprocessors are integrated chips used in personal computers, other electronic devices like clocks, radios, remotes, washing machines and so on….

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Invention History of Liquid Crystal Display (LCD)

The history and development of the Liquid Crystal Display (LCD) is rather complex. The story of the LCD had an unusual beginning by an Austrian botanist in the 19th century. Though the LCD made a different and unstable start, its development proceeded from early successes like the pocket calculator to the key milestone of a flat panel television display that can be hung on a wall. The origin and development of the LCD spans the world’s major industrial centers including the US, Japan and Europe. Liquid Crystals – Discovery Liquid crystals were first observed by an Austrian botanist, Friedrich Reinitzer,…

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Invention History of C Programming Language and the Development of UNIX

Invention History of C Programming Language There would be no surprise in saying that the C language literally shook the computer world? The impact of C cannot be underestimated because it completely changed the perspective with which programming was approached. The birth of the C language was a direct result of the need for a structured, efficient and a high level language that was capable of replacing the assembly code when creating systems programs. On the whole, The C language was designed by programmers and for programmers. The Mastermind behind the Invention Well, now who is the visionary who ended…

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Invention History of Light Emitting Diode (LED)

Most of us are aware that the semiconductor light-emitting diode or the LED is the major component of today’s technology. All our houses have plenty of tiny glowing indicators provided by LEDs; these indicators are employed for various aspects like reading CD and DVD disks in computer and game console drives or to transmit signals from remote controls to electronic equipment. Cars that are equipped with LED indicators are increasing in number these days. Most significantly, it should be noted that LED is a crucial link between electronics and photonics. We have already written an article about the basics and…

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