GEC WRITHLON

GEC WRITHLON IS THE OFFICIAL BLOG OF GEETA ENGINEERING COLLEGE. BY THIS BLOG, WE ARE PROVIDING KNOWLEDGE REGARDING THE LATEST TECH RELATED NEWS, MODERN ENGINEERING INVENTIONS, SCIENTIFIC GADGETS, AND SCIENTIFIC THEORIES

GEC WRITHLON IS THE OFFICIAL BLOG OF GEETA ENGINEERING COLLEGE. BY THIS BLOG, WE ARE PROVIDING KNOWLEDGE REGARDING THE LATEST TECH RELATED NEWS, MODERN ENGINEERING INVENTIONS, SCIENTIFIC GADGETS, AND SCIENTIFIC THEORIES.

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Wednesday 8 January 2020

Wednesday, January 08, 2020

Cnc Machine Technology


CNC's full name is computer numerical control. This is an unconventional machine.

Machine-tools and workpiece are controlled by the computer, they are called CNC machines. In this, the motion of the workpiece and tools is controlled with the help of pre-built programs. The CNC machine is also used in 3D printing.



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Features of CNC


  • Accuracy and precision
This machine is very precise and accurate. Therefore, maintaining quality in mass production is very difficult to manufacture partly high-quality parts. But due to the CNC machine, it becomes easy. The surface of the machine made in these machines is precise.

  • Safety
The entire work of CNC remains automated, and there is no role during the process of the person. And it's designed to keep security in mind.
  • Production cost
Due to its high production speed, its production cost is very low.
  • Efficiency
Because of the accuracy and precision of the parts made in this machine, and the system of quality assurance is already made, the wrong parts get very little from this. And the same thing makes the CNC machine efficient.

  • Skill
In this machine, the operator needs less skill set for the manual (conventional) machine.

Types of CNC Machine

  • CNC Lathes
It is cut into the circular direction of the workpiece, which is also called "turning." The production of the complex part of the complex part cannot be in the lathe, it is in CNC lathe. It has two axes: X and Z.

CNC can put multiple tools in lathe's turret. Due to the advantage of this machine, it is replacing manual lathe machines with old technology. CNC lathe machine costs up to 8 to 30 lakhs. The use of this machine has increased in the past few years.

CNC Milling Machine

The material is removed by the rotary cutter in the milling process, CNC milling machine works on the exact same principle. It has two types:
1.VMC (vertical machining center)
2.HMC (horizontal machining center).

  • CNC Router Machine
In this machine, parts of large-dimension parts are produced. Generally, sheet metal, cutting woods, plastics are manufactured in the world.
  • CNC Laser Cutter
The Laser you are thinking is too strong. In this powerful laser is used for the cutting process. This is the cutting of woods, plastics, metals.
  • CNC Plasma Cutter
It happens just like the CNC router. Size and setup are also the same. The plasma light is used for cutting. It is useful for cutting 2-dimensional profile shapes.

3D Printer



Do you know that 3D printer also has a CNC type machine? Instead of removing this machine part, a part is prepared by raising the layer on the layer. It's working thus pushing the hot plastic with a small hole and the layer by layer is thrown.

Pick and place machine

Electronic circuits such as the motherboard, phone, and tablets contain small electronic components. Keep these components accurately and with speed at its place. So perhaps its name is picked and place machine.
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Wednesday 1 January 2020

Wednesday, January 01, 2020

How Bitcoin Works?

Bitcoin may be a Digital Currency that we are able to decision web Currency within the Common Language.We can not store this currency in our house or in our wallet because it is not a kind of note or a coin. Therefore, you can use bitcoins just online.

Bitcoin may be a redistributed means, meaning there is no Authority, Government or any bank to control this currency.
It works on Peer To Peer Network Base and bitcoin users believe this is a currency.

History of Bitcoin

It works on Peer To Peer Network Base. And bitcoin users believe this is a currency.
In this means, it has become a global currency.
Bitcoin was invented by Santoshi Nakomoto in the year 2009, and since then it has become quite popular Currency.

How much is Bitcoin

If you talk about the value of bitcoin, the price of 1 bitcoins in today's date (January 2017) is approximately 70,000 Indian Currency. It is not that if you wish to shop for bitcoin, you will have to buy 1 bitcoin only.

Actually, the littlest unit of bitcoin is Santoshi and one bitcoin = ten,00,00,000 (million) is Santoshi.
As in Indian Currency, there is 1 rupee = 100 paise. By itself, 10 million Santoshi constitute a bitcoins.
I mean you'll be able to break 1-bit cake to eight decimals.
You can also use 0.0001 bitcoin.

How to buy bitcoin

Well, there are many ways to buy bitcoin: 

  • You can buy bitcoin from your local currency.
  • By selling or selling any service or anything, you can take a bitcoin instead of that thing.
  • Apart from this, you can earn Bitcoin with the help of a website or also on some other application.

What is a bitcoin miner?


Before knowing about the mining, let us tell you that there is a limitation of printing in every country, and there is also a limit to making bitcoins. And the limitation is that there can not be more than 21 million bitcoins in the market, and if you talk about it now, there is about 13 million Bitcoin in the market, then there are new bitcoins that come through the mining.

What is Bitcoin Mining?

Suppose you have sent some bitcoin to someone. To verify this process of sending and verifying those who are called Miners. Those who have High Power Computer And verify Bitcoin Transaction from these computers.

What are the advantages of Bitcoin?

  • Bitcoin exchanges make lesser fees.
  • Bitcoin will sell or purchase something within the world.
  • That too without any hassle.

  • You can do long run Investment in it as a result of the bitcoin is increasing within the records to date.
  • The government does not monitor you in Bitcoin.

What is the harm of Bitcoin?

There is no management Authority, Bank, or any Government, due to which its cost is less.
If your Bitcoin Account gets hacked then you'll be able to not take a Bitcoin Baps and Government won't assist you in any means.
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Thursday 26 December 2019

Thursday, December 26, 2019

JULIA



INTRODUCTION:

Scientific computing has traditionally required the highest performance, yet domain experts have largely moved to slower dynamic languages for daily work. We believe there are many good reasons to prefer dynamic languages for these applications, and we do not expect their use to diminish. Fortunately, modern language design and compiler techniques make it possible to mostly eliminate the performance trade-off and provide a single environment productive enough for prototyping and efficient enough for deploying performance-intensive applications. The Julia programming language fills this role: it is a flexible dynamic language, appropriate for scientific and numerical computing, with performance comparable to traditional statically-typed languages.
Because Julia's compiler is different from the interpreters used for languages like Python or R, you may find that Julia's performance is intuitive at first. Once you understand how Julia works, it's easy to write code that's nearly as fast as C.
Julia features optional typing, multiple dispatch, and good performance, achieved using type inference and JIT, implemented using LLVM. It is multi-paradigm, combining features of imperative, functional, and object-oriented programming. Julia provides ease and expressiveness for high-level numerical computing, in the same way as languages such as R, MATLAB, and Python, but also supports general programming. To achieve this, Julia builds upon the lineage of mathematical programming languages, but also borrows much from popular dynamic languages.
The most significant departures of Julia from typical dynamic languages are:
  • The core language imposes very little; Julia Base and the standard library is written in Julia itself, including primitive operations like integer arithmetic
  • A rich language of types for constructing and describing objects, that can also optionally be used to make type declarations
  • The ability to define function behavior across many combinations of argument types via multiple dispatch
  • Automatic generation of efficient, specialized code for different argument types
  • Good performance, approaching that of statically-compiled languages like C
Although one sometimes speaks of dynamic languages as being "typeless", they are definitely not: every object, whether primitive or user-defined, has a type. The lack of type declarations in most dynamic languages, however, means that one cannot instruct the compiler about the types of values, and often cannot explicitly talk about types at all. In static languages, on the other hand, while one can – and usually must – annotate types for the compiler, types exist only at compile time and cannot be manipulated or expressed at run time. In Julia, types are themselves run-time objects, and can also be used to convey information to the compiler.
While the casual programmer need not explicitly use types or multiple dispatch, they are the core unifying features of Julia: functions are defined on different combinations of argument types, and applied by dispatching to the most specific matching definition. This model is a good fit for mathematical programming, where it is unnatural for the first argument to "own" an operation as in traditional object-oriented dispatch. Operators are just functions with special notation – to extend addition to new user-defined data types, you define new methods for the + function. Existing code then seamlessly applies to the new data types.
Partly because of run-time type inference (augmented by optional type annotations), and partly because of a strong focus on performance from the inception of the project, Julia's computational efficiency exceeds that of other dynamic languages, and even rivals that of statically-compiled languages. For large scale numerical problems, speed always has been, continues to be, and probably always will be crucial: the amount of data being processed has easily kept pace with Moore's Law over the past decades.
Julia aims to create an unprecedented combination of ease-of-use, power, and efficiency in a single language. In addition to the above, some advantages of Julia over comparable systems include:
  • Free and open source
  • User-defined types are as fast and compact as built-ins
  • No need to vectorize code for performance; DE vectorized code is fast
  • Designed for parallelism and distributed computation
  • Lightweight "green" threading
  • Unobtrusive yet powerful type system
  • Elegant and extensible conversions and promotions for numeric and other types
  • Efficient support for Unicode
  • Call C functions directly (no wrappers or special APIs needed)
  • Powerful shell-like capabilities for managing other processes
  • Lisp-like macros and other metaprogramming facilities

 Julia in a Nutshell:

 Julia is fast!
Julia was designed from the beginning for “High Performance” Julia programs compile to efficient native code for multiple platform via LLVM.

Dynamic
Julia is Dyna, feels like a scripting language, and has good support for interactive use.

Optionally typed
Julia has a rich Language with rich datatype , and type declarations can be used to clarify and solidify programs.

General

Julia uses multiple dispatch  as a paradigm, making it easy to express many object-oriented & Procedural oriented programming patterns.

Easy to use
Julia has high level syntax, making it an accessible language for programmers from any background or experience level.

Open source
Its open source & easily Learn Language.

JULIA DOMAINS:

Data Visualization and Plotting
Data visualization has a complicated history. Plotting software makes trade-offs between features and simplicity, speed and beauty, and a static and dynamic interface. Some packages make a display and never change it, while others make updates in real-time.

Interact with your Data
The Julia data ecosystem lets you load multidimensional datasets quickly, perform aggregations, joins and preprocessing operations in parallel, and save them to disk in efficient formats.

Scalable Machine Learning
Julia provides powerful tools for deep learning , Machine Learning  Mand AI.

Rich Ecosystem for Scientific Computing
Julia is designed from the ground up to be very good at numerical and scientific computing. This can be seen in the abundance of scientific tooling written in Julia, such as the state-of-the-art differential equations ecosystem

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Thursday 19 December 2019

Thursday, December 19, 2019

Why Can't Humans Fly?


“The most beautiful dream that has haunted the heart of man since childhood is to have wings and fly high in sky like a bird……and breathe the same way as the angels do……..breathe up there in the clouds where air is very pure and fine, bracing and delicious…..”



Surely, humans have tried to make this work. It seems like it could work. Unfortunately, we are doomed to remain as ground-based animals. Well, that is unless you count powered flight or gliding. We can do both of those. Then why not? Perhaps the simplest answer is “we are too big.” Oh, too big you say? Well, surely we aren’t too big. Maybe if we just had bigger wings, it would work. Nope. It won’t work (well, probably won’t work). This falls into a category of things called “stuff that doesn’t scale like your intuition.” Or perhaps I should say “bigger things aren’t the same as smaller things.”

 DA VINCI'S WING 



Now for my super short calculation hopefully to be followed by some useful data. Let me represent the muscle of an animal as the following cylinder. So, the diameter is 2r with a height of h. Let further suppose that the strength of this muscle is proportional to the cross sectional area (not strictly true – but just hold on) and the weight is proportional to the volume of the cylinder. This would give a strength to weight ratio of: Here, C is just some constant. 



But what matters more is the result. If we make an animal twice as tall and scale the rest of the dimensions proportionately, r would double and so would h. But the strength to weight ratio would be half as much as the smaller animal. Ok, well we can fix that. Let us double the mass (volume) but keep the same strength to weight ratio. We would need the same height, and the radius would have to be sqrt(2) times larger. Here is what that would look like. 

ACTUAL BIRDS



This bird has a wingspan of 3.7 meters and a mass of about 12 kg. Here is the plan. Let us look at a whole bunch of birds and see if there is a correlation between mass and wingspan. Here we go. Almost all of this data has been scraped from Wikipedia. Not all birdWikipedia pages are alike. Some list wingspan, some don’t. And here is the data. 



Well, that turned out a little bit better than expected. But what next? It would be nice if We could fit
some function to this data. We could just start guessing functions to see what works, or We could see
what makes sense. The data actually look parabolic. This would suggest a function something like:
Where w is the wingspan, m is the mass and C is some constant. This isô€…¶’t really what we would have expected, but we will go with it. In order to find the constant C, We have to plot w2 vs. the mass. This should be a linear function and we can find the slope. Here is that plot.



This fit gives a slope of 0.64 m2/kg and an intercept of 0.62 m2. It looks nice except it doesn’t seem to fit very well with the smaller mass birds. We could probably get a better function, but this will do for now.


PREDICTING THE WINGSPAN OF A HUMAN
If a human was a bird, what kind of wingspan would this Big Bird have? Let us take a grown human
male with a mass of 70 kg. If we put 70 kg in for the mass in function, we get a wingspan of 6.7
meters. Sure that is big, but possible. Right? Well, how much do we think 6.7 meter long wings would weigh? We may doubt that wing mass is negligible. If we built them out of balsa wood, how much mass would it add? Let’s just estimate an average wing thickness of 1 cm and a width of 2 meters.

This would be a balsa-wood volume of 0.134 m3. Balsa wood has a density of about 160 kg/m3. This
would give a wing-mass of 21 kg. AH HA. But now we need bigger wings. We could keep playing this game until we find wings that would work – but here we see the problem.
The problem is that if we have 7 meter long wings, we really aren’t going to be able to easily fit them in your car. And that is why humans can’t fly.

BONUS BIRD


Can Big Bird fly? We have never seen that. What would Big Bird look like with correct sized wings? First, need to guess his mass. This is tough since he isn’t really human. Let us ball park his mass at 90 kg (since Wikipedia lists his height at 2.49 meters). This would be a wingspan (if his mass included the wings) of 7.6 meters. Let us redraw Big Bird with wings this size. Now when we can’t fly , we are to make ourselves satisfied with the powered flight and this is the only way, we can fly…


AUTHOR:

Mr. Deepak Juneja


(Assistant Professor  & Head of Mechanical Engineering Department)
(Geeta Engineering College, Panipat)





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Monday 2 December 2019

Monday, December 02, 2019

Internet Of Things (IoT)


Internet of Things(IoT) may be a network of different objects embedded with physical devices, vehicles, home appliances and physics, software, sensors, actuators, and property, that permits objects to attach to every other and exchange of data.

Convenience and time savings

As you might have understood, the Internet of Things is the beginning of an era in which sensible tools will fulfill your every need ahead of time. In the above example of a car parked on its own, the car's system connects with parking equipment and finds the empty space there and takes the car to the spot by looking at the building's map.
Using the ability to go around it, the car stays in that empty space. In this example, the tools demonstrated the ability to get information from the Internet, its direction and work from other devices.

Friendly Technology

Anyone with the help of IOT can connect your home appliances together with the help of the internet so that you can handle those devices from anywhere, you can only take advantage of this technique when your mobile and device's IP These devices are connected with the address.

Application Of IOT

Smart House
Smart Home is a part of the IOT. You must have heard about it. All the tools in the smart home are connected to the internet and which are handled by the sensor. By this sensor, you can use your house door, AC, house heating etc. You can control if you have left the door of your house open and have a sensor on that door, then it will stop automatically after a while and you will be able to get this information sent to your phone.
Nest Smart Thermostat

It is a Thermostat that is connected to the Internet. It maintains the temperature of your home. Thermostat cools and heats the home automatically. If you live outside of the house then it will change your temperature and the problem of heating and cooling. It also gives you permission to receive Alert when it is done.


How IOT Works

If a person wants to reach home before he gets his AC on and his room cools till he gets to his house then it can happen that you can turn on AC with the help of IOT and stop the AC running if it is in the running mode.
Anyone with the help of IOT can connect your home appliances together with the help of the internet so that you can handle those devices from anywhere, you can only take advantage of this technique when your mobile and device's IP These devices are connected with the address. So really IOT is our future.
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Sunday 1 December 2019

Sunday, December 01, 2019

Stephen Hawking's Horror Prediction


The great scientist Stephen Hawking predicted that human civilization could be ended if humans were not able to settle on the new and different planets in the next 200 decades. This was the most shocking news in the world. Stephens Hawking was a visionary thinking personality and he had already anticipated the future threats. Hawking has said these statement because somewhere aliens are also looking for the favorable condition for their life.
Image result for Aliens images

Earth the best planet

Earth is such type of planet in the solar family in which there is every need available to run the life such as the air, water & natural resources and other beneficial resources etc. Due to which the earth is the best suitable planet for the aliens besides humans.
Image result for Earth Images
On the other hand, these basic features are not available on other planets. We know that the human's capabilities are negligible in front of aliens. Aliens are none other than the ancestors of human beings. That means aliens are the future humans but the present humans of the earth are nothing in technology in the comparison of alien's technology.
Image result for Alien technology images
 Modern human civilization is similar to insects in front of aliens this is the real fact. These aliens would crush human beings in future and snatch us from our life-giving earth. So this is the time for thinking on the Stephen Hawking statement.

Unidentified Flying Objects (UFO)

You have heard about the UFOs in any corner of the world. The UFO means the unidentified flying objects also known as the spaceship of aliens. That means the aliens come to the earth with their spaceships. These spaceships are designed according to high technology, which is not yet present on the earth.
Image result for ufo images
Obviously, it will look strange and we have given it the name UFOs.
But the main technology behind these UFOs that it can travel with the speed of lights which of 3 Lakh km/s and the technology on the earth does not wander around it. It may be true about the news of UFOs and even wrong but it is our duty to rescue the earth from the early warning of aliens. Earth is our own property and it is our duty to protect it, we have to do anything for it.
Image result for ufo images

Solution

The founder of SpaceX Elon Musk has also presented a number of effective suggestions to settle the humans on Mars planet so that the human civilization will safe and secure.
Image result for spacex elon musk
SpaceX is working on this kind of way that how to complete Human settlement on Mars. But still it is to be a milestone, if not today or tomorrow,
Image result for spacex elon musk
 we have to think about the settlement of human habitations on other planets because it is mandatory for our earth's security.
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