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Tuesday, November 6, 2018

Watch..Do I really need one?



It's the year 1500 B.C. and the teenager Seth living in Cairo,Egypt has no idea what time it is, even he doesn't know he is no more a teenager.

He always has a dream of visiting a distant town Luxor,Egypt where the world's first sundial is located. Although he is not sure it would be easy for him to observe the time but the sundial is more of a monument than a tool.

Fast forward to the year 1524 and Italians have created the first modern 'watch'. It took almost over hundred years that is in 1675 when concepts of minutes and Roman numerals were inculcated in a watch.


In the older days (late1800s) men used to keep pocket watches and only women used to wear wrist watches. They were also passed on from one generation to another. Wrist watch usage among men came into existence after the same was used by army men on their wrists.



Paul Newman with his Rolex Daytona

Now in October 2017, Paul Newman's (American actor and racer) Rolex Daytona was sold for whopping $17.75 million dollars. A new Rolex Daytona would cost you around $12,400, so why the watch which was already owned by someone, was sold 1400 times more than its current price? And most importantly, in the world of continuous technological advancements every second, why many luxury watch companies, which usually rely on traditional methods of watch-making, are still surviving?





Omega Speedmaster used for Moon Exploration

                               
Cut to July 1969 where Omega Speedmaster Chronograph became the only watch which was trusted for the Moon exploration mission.The Speedmaster was launched in 1957 but its official space legacy started in 1965, when NASA qualified it for use on its piloted missions. Since then, it has been worn on all six lunar landings and earned the nickname “the Moonwatch”.



Sir Edmund Hillary and Tenzing Norgay


Or 12 years before that on 29th of May, 1953, Sir Edmund Hillary wore a Rolex while he was atop at 8848m on Mount Everest which eventually named as Rolex Explorer.





Film Maker  James Cameron descended 10,908 metres (35,787 feet) to reach Challenger Deep with his Rolex

  
The question of "Whether I really need a watch today?" is itself an outcome of a long drawn cultural shift which changed the definition of watch from being a machine to a tool.The legacy of watchmakers and car-makers is quite analogous. Different car-makers are known for their own expertise like Ferrari and Lamborghini for speed, Fords for power and Rolls Royce for sheer luxury. Watches too has profound classification depending upon their accuracy, aesthetics, toughness and fashion. As an example Omega Chronometer is accurate up-to 3 second in a 24 hour duration, Rolex Deep Sea is fully functional at 12800 feet or a Victorinox Inox can happily withstand a weight of a Bulldozer over it. So when it was a question of a clinical military mission where numerous lives were on stake or estimating the time when your Oxygen cylinders would run out in depths of Mariana Trench, prices for watches were always given a second priority, no matter how much they costed. In this way, not only tradition of watchmaking was intact but craftsmanship was also duly respected.






 It was during the time of 1970s-80s when people started dropping their identities of a factory-worker, and  nurtured their individualism by setting up businesses,becoming doctors and teachers.They no longer required someone superior to them to remind of their time, in contrast they set up their own schedules according to their own preferences.This resulted in mass requirement for watches by the middle class gentry. Casio , Seiko and Swatch came in to the rescue and provided what was required at that time : Affordable and Innovative watches.They still continue to be among top revenue generating watch brands with thousands of new models rolling out each year. This datum shift was key in changing the definition of a watch,  mentioned earlier from a machine to a mere tool.





HMT Banglore plant initial days

India , being a developing country the change though has been remarkable.With HMT and Allwyn coming into picture in mid 1950s, every Indian man and woman started recognizing their desires to own one. HMT collaborated with Citizen watches to set up a manufacturing plant in Bangalore, while Allwyn set up a plant in Hyderabad with Seiko. These giants dominated Indian markets as late as mid 1990s after which, Allwyn was defunct in 1995 and HMT in 2017. Since the last two decades the market is dominated by manufacturers Titan and Fastrack, known for making aesthetically appealing , cheap and mainly Quartz(movement) watches.

With a surge in sales of Mobile phones and fitness bands in last few years, wearing a watch is considered too mainstream and it is reflected well in its dropped sales in the following years too.Watches are treated as a dress accessory than being a mechanical masterpiece. This encourages small production houses to manufacture cheap and pirated versions of reputed brands.As an example, they can sell a copy of Patek Philippe for as low as 2500 Rupees, which in contrast takes around 5-6 years to make and costs 2000 times more.








Apart from a visible decline in the eagerness among the mid-value watches, the demand for high end watches have sky rocketed in last 10 years. This resulted in prices almost getting doubling up in last three years thanks to social media and e-commerce.It is well said somewhere that "Diamond is to a woman, a watch is to a man". A watch is not only a time displaying tool, but a heritage that can be transferred from generations to generations.So a magnum opus which amalgamates time and human creativity should be chosen wisely.


 Dalai Lama received his Patek Philippe ( ref. 1526) in 1943 from President Roosevelt



Wednesday, July 2, 2014

Traffic jams and ambulances.

What is an ambulance?

An ambulance is a vehicle for transportation of sick or injured people to, from or between places of treatment for an illness or injury.
But imagine you call 911 and tell the operator you are experiencing the signs of a heart attack -- chest discomfort, shortness of breath and nausea. EMS employees arrive and help you into an ambulance, bound for the best, nearest emergency department, you think, until you overhear on the radio that it is closed to traffic.
Well that is horrifying!

What to do then?

Clear traffic using a wand! ......................................Bad idea.
Instead take some new preventive measures along with the earlier existing ones and this problem can be eradicated.Yes its possible!

How?

In this post i am going to suggest some ways that i believe can work out perfectly if given proper attention.
These mostly are the amalgamation of modern technology,kinematics,coordination and hope.The overview of the concept is to regulate the traffic in order to allow the ambulance to pass unhindered.

Assumptions made


  •  Distance between two signals                   = 500m
  • Type of crossing                                       = 4 lanes
  • Speed of ambulance                                 = 40 kmph
  • Speed of other cars                                  = 20 kmph
  •  Avg. length of cars and ambulance           = 3m
  • Avg. width of cars and the ambulance       = 1.5m
  • Distance between consecutive vehicles      = 1m
  • Width of road                                           =14m
  1. Install proximity sensors in all vehicles(most 4 wheeler ) and on signals.
  2. Whose switch is to be provided inside the ambulance.
  3. In this case we have assumed road to be double laned and and crossing of lane "+" type.
  4. Ambulance must act as point source moving and activating LEDs of sensors in the cars.

Working

Whenever an ambulance will pass through a traffic signal ,the signal will be forwarded to other nearby signal(at 500m) and the crossing would be closed only allowing the road on which ambulance is travelling to pass through.

As soon as ambulance pass through the second signal it will get opened closing the the third signal in a similar way .Thus this process would be repeated accurately till the ambulance reaches the hospital.
You might be wondering by now what is the use of sensors in the cars?!Well it is because people should be made aware of ambulance's arrival.

So next question is "are sirens not enough"? Sirens are effective but it is possible its effect go unnoticed as in case of heavy drilling work going nearby or continuous honking by other vehicles.But when there would be LEDs lighting up inside the car ,the driver will definitely lay his/her attention towards it and change the lane.
This is because those LEDs wold meant only for ambulances!!

Next question on the trot would be what should be the minimum distance between the ambulance and last car sensing its arrival .Will all cars of the city will lighten up whenever any ambulance would pass??!!
Well again that sounds absurd! Keeping all the factors in mind (like distance between two cars , cars' length and width and speed) a car  will take nearly 2.5 seconds  to change over to other lane.
And keeping that duration of time in mind the last car coming inside the circle would be at a distance of nearly 40 meters

To make my statements sound i underwent some calculations which i will publish in my next post.

 .


This video will give you a close idea.

Tuesday, March 18, 2014

CRICKET MY FIRST LOVE

CRICKET MY FIRST LOVE

Well hello everyone once again , this time it’s not about my photography or physics or anything, but this time round I would like to share my experience with the sport named “CRICKET”.
I still remember when I was around 6 years old  I got my first cricket bat. It was actually a “mogri” one which is used by Indians to wash clothes  :P but nonetheless it was precious for me .I used to play with my father and surprisingly my dog too! Let me tell you my dog  was splendid  during fielding.
I am not sharing this to show what trophies or tournaments I have won, in fact I have won none . But its my unbiased love towards the game that I am writing .And by reading this any sport lover could relate yourselves quite easily.
Being an Indian fan, I was a die hard fan of SRT(Sachin ramesh tendulkar), I wrote “was” because he retired from the game for almost 6 months now. I still remember it was the World cup of 2003 when I first got to know how exciting the game can be. In that W.C few things happened like I got the know about the rules of the game coz earlier I used to take my bat back once I got out ,later realizing it was not allowed :P . Even under the guidance of my grandpa and dad I learned to see the score of the undergoing match and infinite etc!
Sadly India lost to Australia in the finals but it was enough for “cricketing passion” to reach its peak.
During that world cup 2 aussie players became my idols namely, Glenn McGrath and Brett Lee (both bowlers by the way).Their deliveries were so fast and accurate that any reckless shot by the batsman was finally turned out to be a wicket. So I thoroughly enjoyed bowling from my 6th grade onwards!!
There was a inter-class match where I took 4 wickets in an over , and I’ll brag that no matter  what. :D
During that time our house shifted , landing me in the locality of cricketing buffs! They were guys of my age (10-15 yrs).We used to play every weekend and don’t ask what used to happen during vacations?!


I’ll tell you the schedule
·         Waking up – 6:00 AM
·         Getting to the field –6:30 AM
·         Warm ups – half hour (god knows what warm up exercises we did :P but still…)
·         Session 1 of play – 7:00AM – 12PM
·         HOME (scolding time/MOM) – 12PM – 1PM
·         TV(Old cricket matches if no lives going on) – 1PM – 2:30 PM
·         Scolding time/dad – 2:30PM – 3:30PM
·         Escaping to the field (once parents fell for afternoon nap) – 4:00 pm
·         Session 2 of play – 4:30 PM – 7:30 PM
#period
In those days for after any good results or birthdays I demanded on cricketing stuffs!
Ranging from 4bats,2leather balls, gloves, pads ,helmet to lower abdomen guard ( I still don’t remember I’ve ever used it).
One day during my exams my father dragged me to the home from the field because of bunking studies.
That incident deepened my love towards it( it got nearly 90% that year :P ).

So this happened for like 5-6 years until I came to 11th grade .I was sent to other town for studies .That time I was undesirably kept out of the game .Let it be not watching a match due to lack of entertainment or not playing a match for almost 2.5 years I felt terrible. Even when I wanted to no one did(geeks!).But every time shall pass. I finally got into a prestigious university with good grades ( still wondering how..) and got back to the game with 200% energy.
Playing whenever getting time between lectures and sharpening bowling skills are a part of my daily schedule. And let me tell you can’t face my bowling that easily ;) even though my idols got retired my passion hasn’t.
I am in third year now and loving the game like never before especially after India wining the 2011 WORLD CUP almost after 28 years.!!!
#CHEERS TO ALL CRICKET LOVERS LIKE ME!




Monday, March 3, 2014

Friday, January 10, 2014

DUST COLLECTOR

Introduction – Once the full welding of coils are done, they are subjected to various tests which ensures that following operations namely projection welding, bending and full welding are performed accurately and the coil will then be sent for Radiography testing.
These tests includes:
·         Ball test.
·         Hydraulic test.
In ball test,a metallic ball of diameter same as that of internal diameter of the coil’s pipe is passed via pneumatic process i.e. passing compressed air through the pipe. This process ensures that the bends are perfect.

But it has been observed that huge amounts of dust get generated from the pipes. To eradicate the above mentioned problem we developed a device and named it as DUST COLLECTOR.

MANUFACTURING FLOW PROCESS –

We started with searching used metallic cans which are being used for painting coil modules. So after finding them we cleaned them with the help of thinner for removing inner solidified paint. After that our next aim was obtaining PVC(polyvinyl chloride) pipes and an accurate hole(diameter same as that of pvc pipe) was made on the lid of the can. Now one end of pvc pipe was inserted into the can(which is filled with water) and other end is fitted to a piece of pipe. Now the successive end of m/s pipe was calibrated with a butt joint clamp. The clamp acts as a junction between the dust collector and the coil.
Now for pipes/coils of different diameter we use butt-joint clamps of same diameters as well. Now when the compressed air is passed , the dust gets collected into the dust collector and we must ensure that the lid of the can is perfectly sealed which inturn prevent sudden splash of water coming out of the water filled can.

FURTHER MODIFICATIONS-

Since the container in dust collector is completely sealed, passage of high pressure compressed air can act as a potential threat because the pressure is around 10 bar. To nullify the threat we provided a vent in the form of of a bent tube welded and attached at the top of the collector .This tube is TIG welded with high precision on the lid.

###pictures to be uploaded soon##

Wednesday, September 4, 2013

Projection Welding using xpandrel technique

Hey guys, its been a couple of months i have written a blog since i was busy with semester exams and nowadays industrial training of 6 long months.
So this present post is on the revolutionary technique of attaching fins on the tubes of various diameters without using resistance spot welding rather making the use of XPANDREL Technique.
Let me give you a basic idea of what it is? Actually what we are going to do is,we'll use a mandrel and by inserting it in the tube(generally mild steel) it will expand and due to that the fins will get fused on the periphery of the tubes!!!

Further calculations and observatory results in the next post,till then keep guessing! ;)

Wednesday, December 5, 2012

MY LATEST CLICKS!!

                                          1.Tap in my home..

                                         
                                              2.Candle flame..
                                                3.Flowers...
                                            4.View from my balcony
P.S- For any suggestions please mail me at - sangram_patil2010@yahoo.com 
                                               THANK YOU!!!