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An Introductory Dialogue

INTRODUCTION by B. Yohan Varghese     Read the dialogue below and answer the following question:     (Scene: Tiruchchirappalli Central Railway Station   An old man finds difficulty in lifting his bag to get into the train when it has arrived, when a boy offers to help him.)     BOY: Do you want some help with that, uncle?   OLD MAN: Definitely  thambi .  Thank you so much.     (The boy lifts the bag and carries it to the old man's compartment. The boy had a window seat directly opposite to the old man so they  started  talking.)     OLD MAN: Thank you so much for your help. I don't really know what I would have done if it were not for your timely help. Where do you stay  thambi ?   BOY: I stay in Chennai, uncle.   OLD MAN: Oh so you are studying in some college here?   BOY: Yes uncle, I study in NIT Trichy, earlier known as REC Trichy.   OLD MAN:  (looks pleasantly surprised)   Wow  thambi ,  that's such a good college! My son gave it a try all those years back but he didn&

Inventions during 1900 to 1940 A.D By Pushpendra

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BALL POINT PEN (1888-1935): American John Loud invents the ballpoint pen but it is not produced commercially until 1935. A ball point pen is a pen which dispense ink over a metal ball at its point . The metals commonly used in making metal ball are steel , brass and tungsten.  The design was conceived and developed as a cleaner and more reliable alternative to dip pen and fountain pen , and it is now the world's most-used writing instrument  millions are manufactured and sold daily.   Ballpoint pen ink is normally a paste containing around 25 to 40 percent dye. The dyes are suspended in a mixture of solvents and fatty acids. The most common of the solvents are benzyl alcohol or phenoxyethanol, which mix with the dyes and oils to create a smooth paste that dries quickly. Ball point pen are mainly manufactured in two types disposable and refillable.  Refills allow for the entire internal ink reservoir, including a ballpoint and socket, to be replaced.  ESCALATOR(1900-1901) : An  esca

The developments by mechanical engineers in 1940-1960 ,which proved that engineers can do anything and can remake the world.

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1940.A. D _ 1960 A.D by V. Naga Pujitha The developments by mechanical engineers in 1940-1960 ,which proved that engineers can do anything and can remake the world. 1941 : Gloster E28/39 The Gloster E.28/39, (also referred to as the Gloster Whittle, Gloster Pioneer, or Gloster G.40) was the first British jet-engined aircraft and first flew in 1941. It was the fourth jet to fly, after the German Heinkel He 178 (1939), the Italian Caproni Campini N.1 motorjet (1940), and the German Heinkel He 280 (1941).The E.28/39 was the product of a specification which had been issued by the Air Ministry for a suitable aircraft to test the novel jet propulsion designs that Frank Whittle had been developing during the 1930s 1943: Dialysis machine  Dr. Willem Kolff is considered the father of dialysis. This young Dutch physician constructed the first dialyzer (artificial kidney) in 1943. The road to Kolff’s creation of an artificial kidney began in the late 1930s when he was working in a small ward at t

Invention took Place in the Middle Age

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  Middle age is the time period between 9th Century - 14th  Century.  This period is also known as Golden Islamic Era . In this era lots of inventions had took place by some of the great inventors .  Ismail al-Jazari was one of the great mechanical engineer at that time. Ismail al-Jazari Born: 1136AD - Died: 1206AD He was a polymath: a scholar, inventor, mechanical engineer, artisan, artist and mathematician from the Artuqid Dynasty of Jazira in Mesopotamia. He is best known for writing The Book of Knowledge of Ingenious Mechanical Devices, where he described 50 mechanical devices, along with instructions on how to construct them. Following are some of its major machineries that he had constructed. World's first Programmable Humanoid Robot:  Musical Robot Band  Al-Jazari created a musical automaton, which was a boat with four automatic musicians that floated on a lake to entertain guests at royal drinking parties. It has a programmable drum machine with pegs (cams) tha

Uncovering the Mechanics of Progress: A Look at Mechanical Engineering in the 1700s and 1800s

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 The 17th and 18th century was a time when people truly recognized new inventions not as philosophies but as Science. Mechanical engineering during the 17th century was a time of great progress. There were many inventions and developments in the field of mechanical engineering both big and small. Starting off in 1629 the  famous steam turbine was invented by Giovanni Branca. Giovanni Branca is one of the most influential names in the history of steam power. He invented a steam turbine that produced twice as much power as its predecessors. Steam engines made it possible to easily work, live, produce, market, specialize, and viably expand without having to worry about the less abundant presence of waterways. Cities and towns were now built around factories, where steam engines served as the foundation for the livelihood of many of the citizens. Thomas Savery in 1698 invented the first commercially used steam-powered device, a steam pump which is often referred to as the "Savery engi

This philosophical study preceded science! And read about other scientific marvels of the 19th century.

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The transition of natural philosophy into science in the 19th century How the advancements in the  19th century  affected the field of mechanical engineering and laid a pathway to the modern world. The scientific contributions of the 19th century are the most significant, as it's only in this century science was taken as a profession, and natural philosophy was replaced with science. The creation of electromagnetism as a new branch and significant contributions to thermodynamics paved a pathway to every technology we have achieved ever since  The industrial revolution in Britain was at its peak during the early 19th century, which jumpstarted the century. table of contents the first quarter the second quarter the third quarter the fourth quarter timeline important innovators summary 1800-1825: The most significant limitation in the 18th century was unreliable transportation. The usual

Unlocking the Marvels of Mechanistic Progress from 1400AD to 1600AD

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M echanical engineering, a field that has come a great deal from its ancient origins, has witnessed countless milestones throughout its historical trajectory. The field of mechanical engineering has transformed from simple machines to complex devices. This blog post will delve into the wonders of mechanistic advancements between 1400AD and 1600AD. During the Renaissance, Europe saw a revival in learning and renewed interest in science, mathematics, and the arts. This era of innovation led to advancements in mechanical engineering, including the creation of mechanisms. It saw the rekindling of learning and a resurgence of interest in mathematics, science, and the arts. During this time, many inventors and engineers made improvements and invented new mechanisms, resulting in the advent of mechanisms.  One of the most remarkable mechanistic advancements of the Renaissance was the advent of timekeeping devices such as clocks and watches. During the Renaissance, Europe develo

1980 A.D. - 2000 A.D.

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Mechanical Engineering inventions needed in the fields of energy conservation, renewable energy, energy conservation, power generation., 3D printing, injection molding, computer numerical control (CNC) machining, space exploration, crewless aerial vehicles (UAVs), and missile systems.   The Space Shuttle   After the lunar missions in the late '60s and early '70s, the people at NASA dedicated themselves to developing a new vehicle to venture into space and return home safely. The culmination of their research and development was the Space Shuttle. The engineers and mechanics designed it to be more than just a transportation vehicle-the Space Shuttle would become an orbiting scientific laboratory capable of hosting numerous experiments designed to increase our understanding of the universe. The Space Shuttles also played an important role in deploying and maintaining equipment in space, including satellites and the International Space Station: The first Space Shuttle launch was t