9 inventions that changed the world

By Navistha Vashist - June 12, 2021


If you will move your eyes down this record you would be so surprised to find out that these items a lot older than you believe they would be. This batch complies with introspection on what is significant to us in our daily life. I believe that these are the considerable and biggest inventions/discoveries of all time & hence I am gathering them in one blog. 

1. X-ray photography


An X-ray is a form of electromagnetic radiation with a very short length (range 10-0.01 nm- nanometres). German Physicist Wilhelm Röntgen, was researching cathode rays when he realized that these generate another or different form of rays (when they hit the glass or the Cathode Ray tube). He called X-ray 'X' because X is a mathematical term for solving anonymous equations. As he didn't know anything about it and he just discovered this, he named this incredible discovery "X-ray". 

After discovering the X-ray, in interest, he passed through card, paper, and fabric and it generates fluorescent and can be utilized to create an image in a barium coated photographic plate. Then some other day, he was experimenting with something that includes human tissues he asked his wife to place her hand on the plate and found out that x-ray passes through the flesh but not through the bones or her ring. He didn't know the disadvantages of X-Ray yet. Now in modern life, X-rays play so crucial role in the medical field and we comprehend if a bone is fractured. 

2. Electric Stove


Earlier, electric stores were operated by running electricity through a resistance coil, the coil heats up and also heats the iron plate placed on the vessel and food inside it. Now the electric Stoves use glass-ceramic tops instead of iron. The electric stoves were slow to function because only a few people had a key to electricity at that time. A fully electric kitchen was disclosed at the Chicago world fair. In the 1920s electric stoves became a considerable competition to the gas stove. The first person for an electric store was awarded to William Hadaway. 

3. Powered hearing aids


Back then, Power hearing aids were carved from wood and were carved to resemble the ears of animals known to have acute hearing. There were many tries made to develop up powered hearing aid using the newly invented storage battery at the time, but the first most successful power hearing was 'Akoulallion' by Dr. Miller R Hutchison. The early designs were very bulky, and were very expensive, as well the battery life is very limited and so was the range of frequencies. 

4. Steering wheels


Alexander Winton was a very enthusiastic cyclist and was also the possessor of Winton automobiles, he had also been attempting to replace the Tiller on his car with the system designed on a bicycle steering. He then came up with the circular wheel with the tube running down to the steering box link to all four wheels. The mechanism in the steering box summarized the rotation of the wheels into linear action and gave drivers gain control of their vehicles. 

5. Washing Machine


Washing clothes were "The American housekeeper's hardest problem", but this situation was solved by modern technology- Washing Machine. In 1858, hamilton Smith patented a rotary washing machine. Cylindrical, with 'agitated water' and revolving paddle, it was the first step towards modern machines. Others followed from other manufacturers, some blending the machine with the mangle. The early machines were still hand-cranked, but it was not long before motorized versions became accessible, either with fuel-burning or electric motors. 

Hurley Company first produced the "Thor" designed by Alva Fisher. This was the first electric washing machine to be largely sold and it had a book with it advising about the self-reversing gearbox that avoided the clothes from becoming compacted during the process of washing. Sometimes it failed as it was new and unprotected at that time. 

6. Refrigerator

The refrigerator helps us in food storage and slowing the development of bacteria. Baltzar von platen and Carl Munters were learners at the Royal Institute of Technology in Sweden. There, they invented and developed the gas-absorbing refrigerator.  Unlike modern fridges, it did not require electricity driving a compressor, but depended instead upon an ingenious process whereby a refrigerant gas is put through a series of changes of state. In von Platen's process, ammonia mixed with water is heated until the ammonia evaporates. This gas is then approved through a condenser, which supervises heat away from the pure ammonia until it becomes liquid at a much lower temperature than when mixed with water. This liquid is then passed through brine and cools it, which in turn chills the unit. The ammonia is then returned to gas and reabsorbed into the water so that the process can begin again.

7. Elevator


American Jesse W. Reno came up with the idea of an "inclined elevator" at the age of sixteen and patented the idea in 1891. It was not the first idea of its type because an invention had been awarded earlier for a steam-driven design, but this was never built. In 1895 Reno's moving stairway was built as an attraction at New York's Coney Island amusement park.

The term "escalator" was not attached to the invention until Charles Seeberger combined scala (Latin word for "stairs") and elevator, the name of a device invented some years previously. Seeberger redesigned the escalator, and it was built in the Otis factory, New York. This became the first commercial escalator, winning first prize at the Paris Exposition in 1900. The Otis Elevator Company bought the rights to both Reno's and Seeberger's designs and became the world's leading escalator manufacturers.

He continued to invent, and after a rejected bid to redesign New York's subway system, he moved to London, and with his new company, began manufacturing a spiral escalator for the London Underground train network. This was less successful and never used by the general public.

8. Electric fan


Being too hot must have been a major problem for people before the late 1800s. As soon as electrical power was introduced, inventors started to work on ideas for the electric fan.

Dr. Schuyler Skaats Wheeler (1860-1923) was the American engineer responsible for creating the personal two-blade desk fan-an an invention beloved of anyone who has ever held down an indoor job in the summer months. Invented by Wheeler at the tender age of twenty-two, the fan was made of brass, with no protective caging surrounding the rotating blades, resulting in a product that was both stylish and dangerous in equal measure.

However, like most inventions of that time that used electricity, when they have first introduced these fans were the reserve of the rich and the powerful. It was not until the 1920s when industrial advances meant that fan blades could be mass-produced from steel, that prices started to drop and the ordinary homeowner could afford one.

Aside from his fan, Wheeler also became known for employing a large workforce of sightless people. He noticed that his sighted employees who were skilled at winding coil did so without ever looking at their hands. He blindfolded himself to see if he could wind coil without looking and found that, with a little practice, he could. The number of blind individuals in the population had increased as a result of World War I. Wheeler set up a department at his factory that employed only sightless men and women, putting them on a par with their sighted contemporaries.

9. Motorcycle


When the German inventor Nikolaus Otto produced the first four-stroke internal combustion engine in the late nineteenth century, he inspired Gottlieb Daimler (1834-1900) and Willhelm Maybach (1846-1929) to produce an exciting form of transport. The concept was every parent's worst nightmare: to combine a strengthened but still dangerously unstable "bone crusher" bicycle with a gas engine.

Two-wheeled, powered transport was not itself a novelty. Steam-powered bicycles had been around since 1867, and the Michaux-Perreaux steam bicycle with its front wheel larger than its back wheel and the steam engine mounted under the saddle went into production in 1868. But when Daimler and Maybach produced their gas-based version in 1885 they unveiled what was to be recorded by historians as the world's first motorcycle. Maybach drove the prototype from Cannstatt to Untertürkheim, a distance of nearly 2 miles (3 km), reaching a speed of 7.5 miles per hour (12 kph). While modern motorbikes resemble powerful jet engines on wheels, with leather jacket-clad riders confidently astride them, the original two-wheeled motorcycle had additional safety wheels protruding from each side of the chassis to provide a stable riding platform. Only in later models, as riders mastered the techniques of controlling fast movement on two wheels, were the stabilizers dispensed with.

Despite its cautious beginnings, the motorcycle has evolved into a highly adaptable road vehicle. In the twenty-first century, the need to minimize carbon footprints will only further increase the popularity of this environmentally efficient invention.

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3 Comments

  1. Awesome work done, it is true that everything you included in the blog really changed our world and you have defined it in an excellent way!!

    ReplyDelete
  2. Anonymous6/12/2021

    Indeed, these great invention/discoveries changed the world. Such a well written blog. Good job (◕દ◕)

    ReplyDelete
  3. Anonymous6/12/2021

    👍 Excellent blog!Topics range from new inventions on the market to inspiring personal stories that inspired innovation and bright ideas to improve lives.

    ReplyDelete