The thermometer, one of the best innovations of the world, is a device that measures the degree of hotness and coldness of any body. The two most important elements of the thermometer are the temperature sensor and also a means through which the physical change can be converted to a numerical value. The credit for […]

Television (TV) is a telecommunication medium wherein transmission and reception of moving images takes place. Not from today but from 1920, it was available. However, it was another fact that from 1950, it got wider acceptance from the common public. Operational TV was invented by John Logie Baird of England and got acceptance in 1925.

The telephone inventor Alexander Graham Bell won the race to patent his invention, and therefore, won the name for the discovery of a device which transmitted speech. Luckily, his would-be father-in-law got him the financial aid that was required for him to do his experiments on a device he thought would transfer speech over the

The much well-known electric telegraph is out of the world now, but it had a significant history that mattered in the world of communi-cation. The non-electric telegraph was first invented in 1794 by Claude Chappe. This was an optical telegraph that was replaced by electric telegraph. Samuel Soemmering invented a crude telegraph in 1809, which

Teflon was accidentally invented by a chemist, Dr. Roy J. Plunkett. Teflon, also known as polytetrafluoroethylene, is the plastic that is used to coat pots and pans to give it a distinct sheen. It is a fluorocarbon polymer with slippery, non-sticking and stain-resistant properties. Dr. Plunkett was hired by E.I. DuPont de Nemours & company

The first teabags were made of hand-sewn silk in the early 1900s. Teabags were commercially available in the year 1904. Thomas Sullivan, a tea and coffee shop merchant, used little silken bags to ship tea all over the world. The loose tea was then intended to be removed out from the bags and used. Customers,

In 2002, Bill Gates and the Microsoft Corporation invented contemporary tablets. Tablets are now integrated into portable devices such as cell phones, providing touch screen facility, web browsing, word processor system and much more. It helps in many ways; it’s like a boon for today’s world. Early portable tablets were heavy and with limited battery

Amongst the oldest musical instruments, trumpets have one of the highest ranges. The oldest trumpet originated back in the 15th century and is said to be found in the tomb of King Tutankhanem. They were mainly made of brass which were bent twice into a rectangular shape with round edges. They did not have any

The first typewriter came into existence in the 1860. It was widely accepted as one of the most useful device to type words on paper. It was transformed from a mechanical device to electromechanical device that were used in many departments a few years back. Though, it has its limited existence now. After the invention

Without the wheel most of the world’s work would stop. Automobiles, trains, street-cars, farm machines, wagons and nearly all factory and mine equipment would be useless. The oldest wheel known was discovered in Mesopotamia and is believed to date back 55 centuries. Man learnt to bind the rim and hold the fellies together with over

Stethoscope is an audio-medical instrument, which is used for the purpose of listening to heart beats and breathing. It was discovered in the year 1816 by a French physician Rene Laennec at Necker-Enfants Malades Hospital in Paris. He was inspired by two small children who were hearing the scratching of a pin that was transmitted

The credit of the invention of the steam engine goes to a number of British inventors. The first basic steam engine was built by Thomas Savery in 1698. Afterwards, the atmospheric steam engine came into existence. It was Thomas Newcomen who used atmospheric pressure where pressure intensity had no limitation and the model was applied

The first stapler was a hand-wrought device used by King Louis XV of France in the 18th century. In the 19th century, the growing utilization of paper created the need for a useful paper fastening device. George McGill invented a petite, flexible, brass-paper holdfast for which he received the US patent in 1866. It was

Harry Brearley who was an English metallurgist, was heading England’s Brown Firth Research Lab in Sheffield in the year 1908, at the age of 36. In the year 1912, the lab was commissioned to find out ways so as to eliminate the erosion in gun barrels. Brearley spent months researching the given objective but to