Sunday, August 26, 2018

Google vs Facebook comparison



Google and facebook have become an essential part of our life. Even most of the people of generation Z who are accessible to it cant even imagine a day in life without it. As new technology emerges lets see who would win the battle of dominance over internet. From simple search engines to and social network tools to innovative artificial intelligence and virtual reality platforms which team has which team has it what it takes to the next level of evolution. So lets try to find in this article.

The Google was founded by Larry Page and Sergey Brin when they were both Phd. students at Stanford University in 1998. In 2004 it moved its new headquarter to mountain view, California after initial new offering of I.P.O. Its increment in size has eventually making Google more productive as it now has many application based software including Google maps app, Gmail app etc. increasing its grip in many fields including partnership with electronic manufacturers of smartphones, headsets and speakers. Facebook also began its life at college with students such as Mark Zuckerberg, Eduorda Saverin, Andrew McCollum, Dustin Moskovite and Chris Hughes launched the social networking service in 2004 with the membership to only fellow Harvard students then afterwards to other colleges and universities as popularity grew in 2006 it was made accessible to all above 13 years old. The primary revenue generated by facebook is through advertisements hosted on the site. When its headquarters were shifted to Dublin it shows that now it is making some real cash. In 2009 it was the most used social networking site and in 2010 it was valued at 41 billion dollars.

In 2017 in the fortune 500 list Google was ranked at number 22 while the facebook was ranked at 76. As for now at present Google is now in charge of blogger, you tube, skybox, Maps, wallet, Google earth and hangouts. Facebook has control of Ozio, wavegroup, sound, Oculus VR, whatsapp, lightbox and Instagram. Google as a search engine has the upper hand over the facebook but facebook has a upper hand as a social networking site. Both google and fb had been struck in legal cases due to accusation of privacy breaches and data smuggling.

Both Google and facebook are doing a lot towards development of AI and virtual reality and that could influence the future of society in a lot many ways.

Wednesday, August 15, 2018

Wall Street Crash



From the beginning of formation of nation peace and welfare of every nation depend on its economic security. But the same security is not guaranteed. Economic Crash could create mass poverty - as happened in the U.S.A after the stock market crash of 24 october 1929. Share prices tell so low that companies become worthless. Inventors lost their money and went bankrupt. With the country engulfed by depression, millions lost their jobs, then their homes. They went on the road in search of work, dependent on charity for survival. Countless members died from starvation and illness.

Mounds of worthless cash

Inflation - when money losses its value - can be a financial disaster. After world war 1, 'hyperinflation' in germany reduced the value of its currency, the mark, to virtually nothing. Germany had to pay huge sums in compensation to countries it had attacked in the war, but the government cheated by printing new bank notes to pay with. People lost the faith in the worth of this money and the marks value plummeted. In 1918, a loaf of bread cost 1 mark. In early 1923, the price has risen to 250 marks. By christmas, it was 200 billion marks. Workers took there wages in wheelbarrows, and children played with stacks of worthless cash. This economic anarchy lasted until the government introduced the new currency.

Standing in the line

As the great depression gripped the United States, jobless numbers increased reached 14 million and average incomes halved. Americans, receiving no unemployment benefit, relied on soup kitchens - or begging - to stay alive. Recovery only began after a new president, Franklin D.Roosevelt, introduced the 'New Deal' in 1933. This helped the poor find food, shelter and work through community projects, building roads, dams and houses.

Hard time for farmers

In 1932, with the depression at its height, America suffered another economic disaster. After the years of good harvests from the great wheat-growing plains of the south, the vast region was struck by the serious drought. The land soon become a 'dust bowl'. Farmers lost their properties and moved into crude shacks. Half a million people abandoned their land before the drought ended - five long year laters.



Panic in the Street

On the morning of the great crash, the stock exchange in New York wall Street was a scene of chaos. Large investors were selling shares in response to fears about the worldwide economy. As news of the falling prices spread, thousands of small investors ordered their stock brokers to sell 'at any price'. Panic broke out to the brokers failed to buy any buyers. Millions of shares worth worth billion of dollars became entirely worthless in a matter of hours.


Tuesday, July 31, 2018

Diesel

Meaning

Diesel is a liquid form fossil fuel or we can say that it is a liquid fuel that can be used in Diesel Engines. Unlike Petrol its engine fuel ignition takes place without any spark and in substitution to it with the help of compression. Diesel engines have found a broad use due its fuel efficiency and thermodynamic efficiency.



Uses

Unlike Gasoline and L.P.G, Diesel engines do not use spark ignition's.  An engine running on diesel compresses the air inside the cylinder to high pressures and temperatures (compression ratios from 14:1 to 18:1 are common in current diesel engines); the engine generally injects the diesel fuel directly into the cylinder, starting a few degrees before top dead center (TDC) and continuing during the combustion event. The high temperatures inside the cylinder cause the diesel fuel to react with the oxygen in the mix (burn or oxidize), heating and expanding the burning mixture to convert the thermal/pressure difference into mechanical work, i.e., to move the piston. Engines have glow plugs and grid heaters to help start the engine by preheating the cylinders to a minimum operating temperature. Diesel engines are lean burn engines.

Trucks

Diesel engines are widely common in large automobiles like truck,buses etc  because it has more power then Gasoline engines. The Gasoline powered automobile are major exceptions like Diesel cars are less in number's worldwide.




Railroads

Due to Diesel engine is a better substitution to large size inefficient steam powered engine because it is small as well as far more efficient it has replaced it in latter half of the 20th century, and is now used almost exclusively for the combustion engine of self powered rail vehicles (locomotive's and rail car's).
Aircraft

The first diesel-powered flight of a fixed-wing aircraft took place on the evening of 18 September 1928, at the Packard Proving Grounds near Utica, Michigan. With Captain Lionel M. Woolson and Walter Lees at the controls the first "official" test flight was taken the next morning, flying a Stinson SM1B (X7654), powered by a Packard DR-980 9-cylinder diesel radial engine, designed by Woolson. Charles Lindbergh flew the same aircraft and in 1929, it was flown 621 miles (999 km) nonstop from Detroit to Langley Field, near Norfolk, Virginia. In 1931, Walter Lees and Fredrick Brossy set the nonstop flight record flying a Bellanca powered by a Packard diesel for 84 hours and 32 minutes. X7654 is now owned by Greg Herrick and is at the Golden Wings Flying Museum near Minneapolis, Minnesota.
Diesel engines were produced in both Germany and United Kingdom by different companies with the production run of 900 engines Junker Jumo 205 was the most produced aviation Diesel engine of all times till now. In the Soviet Union Institute of TsIammade a significant progress in building of practical diesel aero-engines.


Military Vehicles

Military uses Diesel engine's because Diesel has lower risk of catching fire and it's engine's are much more powerful then other fuel's engine thus providing higher rate of torque and low rate of stalling.
Cars

Diesel powered cars have much more powerful engine's and better fuel efficiency although creating much more pollution then petrol or gasoline powered cars. Diesel powered cars are more expensive and take higher maintainence charges and more fuel efficient.   
Tractors and heavy equipment
In modern day era most of the tractors and heavy equipements mostly diesel powered. Among the tractors only smaller classes have Gasoline or Petrol engine's. 



Other uses
The Diesel engine's are used a lot equipment's and vehicle's which need's less flammabilityand higher fuel efficiency.
Pricing
The price of Diesel is less then Gasoline or Petrol especially in India otherwise it depends on country to  country due to taxation and availability of resources that what price it should be.

Marble

Meaning

 "Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite. Marble may be foliated. In geology the term "marble" refers to metamorphosed limestone, but its use in stonemasonry more broadly encompasses unmetamorphosed limestone"

Kearey, Philip (2001). Dictionary of Geology

Marble has been derived from a Greek word (mármaron). And according to some other people it can be linked to English word marmoreal, meaning "marble like".



Uses

Sculpture-
Since old times white marble has been valued high for its use in sculpture's. All this is because of it's durability it is soft which tend to make it easier to carve, and have a resistance to breaking.It does also have quality that it has the low index of refraction of calcite allows light to penetrate several millimeters into the stone before being scattered out, resulting in the characteristic waxy look which gives "life" to marble sculptures of any kind, which is why many sculptors preferred and still prefer marble for sculpting.



Construction Marble


Construction marble is composed of a material which is capable of taking polish.In construction purposes it has a huge demand due to its beauty and endeavor and the market is growing at a large pace due to technological advancement in procurement and cutting of Marble.




Production

In 1998, marble production was dominated by 4 countries that accounted for almost half of world production of marble and decorative stone. Italy and China were the world leaders, each representing 16% of world production, while Spain and India produced 9% and 8%, respectively. Italy is the world leader in marble export, with 20% share in global marble production, followed by China with 16%, India with 10%, Spain with 6%, and Portugal with 5%.

Artificial Marble

Marble dust is combined with cement or synthetic material to make artificial marble. The appearance of marble can be simulated with faux marbling, a painting technique that imitates the stones color pattern.

Robots

Introduction

Today we live in the society where 'Automation' is growing as the trend of the Era. Robots and their uses are becoming more and more common there are possibilities that on day going out in hotels means being greeted by the robotic host going to hospital means treated by a robotic medical nurse and going to shop means buying things from a robot cashier whether we like it or not. Robots have been on the planet from ancient and medieval times but they were mechanical and limited in there work but now robots can do a lot much work thanks to coding,software and the invention of electricity although less Eco-friendly and causing increase in unemployment.



Meaning of a robot

 Most of the people in modern day era can recognize a robot but can not define it. The IFR(International Federation of Robots) had organised the robots in two main categories one is Industrial robot and the other are service robots. Industrial robots are the ones that came into use in industries and factories and service robots are being used for service purposes. But we can not define every autonomous thing as a robot we have to filter our thoughts about it the things we can turn on and off are robots and they have no further directions.




Types of robots

Robots can be classified on many basis as per the guidelines of many organisations for convience robots can be categorized based on their classifications here:

Production robots

These robots are mainly use at factory level such as industrial,military,medical and service sectors. Example of production robots are include robots in automobile assembely lines, military drones, the Da Vinci surgical robot, and service robots in hotels and hospitals.

Domestic or house held robots

There are many kind of robots in this catagory like iRobots Roomba 980, and braava jet 240 and Robotic lawn mower etc.

Other robots

Various other robots that are out of category of production and domestic robots such as Mars rover that explores other worlds like Mars,Moon etc. the toy robots and robots created as project for school and colleges also comes in this category.



Conclusion

As robots take care of our more intimate needs, such as personal care giving,human to robot and robot to human interactions will become a central focus of study and philosophical discussion. Much is the concern are the trust issues and acceptability for the robots. As technology advances the safety should be insured that it would not cause harm to the Humans in any way as due to technology if God wills the future for robots and robotics is unlimited.

Saturday, July 28, 2018

Augmented Reality and Virtual Reality



Virtual reality

Today virtual reality (VR) is implemented using computer technology such as headsets, omni-directional treadmills and special gloves to create an illusion of reality. But the question is what is virtual reality?

Virtual reality is a creation of an unreal world to our senses which is basically a virtual, three dimensional, computer generated environment. The person becomes the part of the virtual world as by just wearing the VR in such a sense that he/she is able to manipulate objects or perform a series of actions.



Why virtual reality

Virtual reality could led us to explore new discoveries in the area which impact on our day to day lives. It can help us to train for dangerous professions and can avoid the risk of life in training from fighter pilots to medical application trainee surgeon, virtual reality allows us to take virtual risk in order to gain real world experience. As the cost of virtual reality goes down and it becomes mainstream, we can expect more uses such as education or productivity applications to come in foreground.

Virtual reality and augmented reality could change the way we interface with our digital technologies while continues to humanise our technology.



Problems 

This is more difficult than it sounds,since our senses and brains are evolved to provide us with a finely synchronised and mediated experience. If anything is even a little off we can usually tell. Immersiveness and realism are the issues that makes the enjoyable experience as the unpleasent ones. Virtual reality technology needs to take our physiology into account otherwise it could in severe cases lead to motion sickness which happens in boat or while reading in the car. If in the production of VR gets all right in sense of combination of hardware, software and sensory synchronicity all things would be O.K.



Augmented Reality 

Imagine seeing an object that you can see but can not touch or we can say partially tangible. Augmented reality (AR) is a technology that is trending but it's been around in some form for years, if our definition is loose. For example, the overhead displays in many fighter aircraft in the 1990s would show information about the altitude, direction and speed of the plane, but now they show which objects in the field of view are targets.
   In the past several years various organisations had tried and are trying to build devices that give us augmented reality. In 2009, the MIT media lab's fluid interfaces group presented sixth sense, a device that combined the use of camera, a small projector, a smartphone and a mirror, which hung from the users neck down the chest. The sensors on the user's fingers manipulate the images projected on to any surface without requiring the visual screen.



The future of augmented reality

There is lot of work beings done on augmented reality. One such device is earbuds, which allow us to adjust the sounds that comes in from our surroundings. Research continues apace on including AR functionality in contact lenses and other wearable devices that would operate by themselves. The ultimate goal of augmented reality is to create a convenient and natural immersion, so that there wont be any need for phones or tablets. It isn't clear what those replacement will be. Even classes might take a new form, as "smart classes" are being developed for the blind people.



AR vs VR

AR is different from VR. VR means computer generated environment for us to interact with, as we immerse in it. AR, adds to the reality we normally see rather than replace it.
      Google glass is an example of AR not launched yet but is impressive as it has a projector to see movies and videos which accepts the users voice commands in daily use.
     In apps examples are that of cities technologies stars app, in it we could point camera to any star and planets to check its name as per the publisher of that app. Layar is an app to find and collect information about nearby surroundings. Disney research has also developed an app which is basically a coloring book which is based on AR.





Tuesday, July 24, 2018

AI (Artificial Intelligence)



Artificial intelligence is said to be the pennacle of the age of machines. The industrial age witnessed the developement of machines that relieved humans from doing heavy physical work. In what is called a second machines age, humans are now biengs relieved of doing the mental work as well. This article takes a wide look at all its possibilities in the future.



Artificial intelligence (AI) is made up of two words - Artificial and Intelligence. AI is "the science and engineering of making intelligent machines, perticualrly intellectual computer programs."
AI can turn a computer to self functioning and software's that can think, quite like the human biengs can think. Researchers are making system that can react to human biengs, identify there speech and react with them.

The growth and developement was desired to bring intelligence in machines which is similar to human biengs or can be more than it. British mathematician Alan Mathison Turing, known as the father of Ai, pridectedin 1950s that coming days in future the machines would develop to such a extent that they would think like human or have ability to more then that.



AIs two basic goals -

Creating expert systems: Systems that exhibit intelligent behaviour and can study, reveal, describe and advise its users.

Implementing human intelligence in machines: To make systems that comprehend, think, study and act like human biengs.

Interesting facts about AI 

• AI can repair itself - A AI robot may not know what is broken but it can observe the decrease in level of functioning and could make necessary arrangements to counter.

• AI can write - Data is captured from seismographs is used by a computer to write an article, which then turns it into figures and plugs those figures into a beautiful story. It takes graphs and turn that into well written reports.



Limitations of AI 

1. The cost involved in its protection and maintainence.

2. Fear of robots overruling humans. We, humans, should be the masters of machines. But if something goes wrong, could clever machines could turn out to be smarter than us.

3. If robots begin to subsitute human biengs in every field, it ultimately led to an unemployment.

4. If the controls of machines goes in wrong hand, it may cause havoc.

5. Over dependence on machines, there would be a lose in mental capabilities.



AI Tools

Companies like Google, Facebook and Amazon are investing a lot in there research and developement divisions just to check out the full potential of the AI systems.