Google’s Project Loon : Connecting the world using Drones to provide internet for remote area
Google started its acquired Space Data Corp which use to work on providing internet connectivity to truckers and oil companies in united states. Project Loon started officially in Google’s secret SpaceX lab in 2011.
in 2013 Google launched 30 balloons in New Zealand in coordination with civil aviation authority.
Google can keep balloons in the air for 75 days. One balloon, called Ibis 152, has been in air for over 100 days, while another balloon, called Ibis 162, circled the globe three times before it finally descended. The Loon team has also bolstered balloon internet speeds utilising LTE and providing 22 MB/sec to ground antennas and 5 MB/sec to handsets.
How Project Look works ?
Google’s Balloon flys 20km above the earth surface in the stratosphere,stratosphereis the second layer of the earth surface. Winds in this surface are stratified, balloon uses an intelligent algorithms which decides the direction and speed of the balloon, considering wind speed in stratosphere.
Google Loon’s Balloon Design
Loon’s balloon envelopes are made from sheets of polyethylene plastic, and they measure fifteen meters wide by twelve meters tall when fully inflated. When a balloon is ready to be taken out of service, gas is released from the envelope to bring the balloon down to Earth in a controlled descent.
How Google Loon Works ?
Google Loon’s ballons are fitted with high efficiency monocrystalline solar cells, The panels produce approximately 100 Watts of power in full sun.
Facebook’s first full scale aircraft, Aquila : Connecting Remote Areas using laser technology
Light is playing an important role in this universe, without light there is no life. People were using Light for the communication from centuries ago. Why can’t we use the same technology now to connect remote places? Facebook’s ambitious project to provide internet connectivity to the remote places on earth using laser technology and a wonderful aircraft which beam downs internet connectivity from the sky. Aquila aircraft, is a part of facebook’s Internet.org effort.
Aquila is a solar powered unmanned plane. It has the wingspan of a Boeing 737, but weighs less than a car and can stay in the air for months at a time.
Aquila is light weight, looks like a thin plate flying in air.
A breakthrough in laser communications technology, made this possible. Facebook successfully tested a new laser that can transmit data at 10 gigabits per second. That’s ten times faster than any previous system, and it can accurately connect with a point the size of a dime from more than 10 miles away.
This effort is important because 10% of the world’s population lives in areas without existing internet infrastructure. To affordably connect everyone, we need to build completely new technologies.
How Facebook’s Aquila Aircraft establish Connection ?
Establishing connectivity using aircraft is a totally different idea, looks like practically impossible, proving theoretically might be easier but the real world scenario might be more challenging. using lasers might seem like science fiction. But science fiction is often just science before its time. It will be tested in the real world and continue refining.
The projected laser beam can reach the remote places and the receivers fitted on the roof of the house can establish the connection.
Facebook has a solid team, enough money but more importantly they are utilising it very well. To survive in market one should always think about the competitors and never give any chance to any one to come and stand with you.
Facebook Connectivity Lab has skilled engineers like Yalae Maguire PHD,
To achieve this Facebook must reinvent the laser technology, Hamid Hemmati has taken the responsibility.
An Aircraft is different and using an aircraft for connectivity is totally different, Andy Cox is heading Aviation Team
An electro optical field is an interesting area of research and Harvard Harding in Facebook is really innovating in that field .
Windows 10 free upgrade still not showing up? Use this trick
Windows started rolling out windows 10 updates to its users, If you have registered but still not getting Windows 10 upgrade options then you have to wait for some time, Windows 10 upgrade will be downloading for you. But if you just cant wait then use the below trick to get it now 🙂
Windows 10 upgrade path and process
Open Command Prompt as Administrator
Enter wuauclt.exe /updatenow
Give it a few minutes, and open up Windows Update
Voila! You should now have the Windows 10 upgrade prompt on your Windows 7 or Windows 8/8.1 PC!
For some people the above thing may not work, kindly note that you should open cmd ( search cmd in windows search) not command prompt.
Some people might be experiencing an issue while upgrading windows 10. It will show “Something went wrong” message. Just wait until Microsoft fixes an issue.
Google announced, no forced Google Plus ( Google+) subscriptions
Interestingly Google announced that It is stopping forced subscription for google plus, Google plus was launched four years ago in 2011. Google+ initially was very promising, number of subscriptions were more compared to Facebook. The user base growth was good enough compared to Facebook.
However the stats says a lot and the reason google deciding to say goodbye.
Google plus Vs Facebook users
This is interesting fact… but how many active users ?
For example, in 2015 only 4 to 6 million users have made any public posts
Facebook has shown healthy stats : only 7% of the 2,449 registered Facebook users surveyed say that they are not active. Facebook has reached 1.44 billion active users monthly.
An analyst , Anderson studies data compiled byEdward Morbius, who says that just 9% of its 2.2 billion users actively post public content.
The complete stats on all social media platforms is availablehere
So google is stopping their users to subscribe forcefully for google plus. so Google plus and youtube are finally splitting up. It is interesting to see google like company taking interesting moves. But It is really good move by google, they have many things to focus for the future.
8 Ways the Internet Of Things (IOT) will change the way you live
The way technology is changing it looks like you no need to worry about anything, your every device will worry about you and will take care of you. The era of Humans control devices is over now, It changed to Devices control humans 🙂 . Before going further on this article, let us first see why Big companies creating business over IOT, so many Internet of things projects going on in market. Companies are forced to adopt new protocol since Internet of things became popular.
9 Ways the Internet Of Things will change the way you live, there are 9 key areas Everything is connected to your internet now. By the way what are these things? Things are objects you use your shoes to your dress, your office chair to your office vehicle, those tiny measuring instruments at your factory to huge machines , anything and everything.
It is just a service to connect your physical objects to digital entities and bringing intelligence in your device.
1. Smart Home and Office
A device which text you when someone rings your (wireless) doorbell; turn on the light by talking to Siri; tweet at you when your water tap is on and water is waiting in your kitchen; or, when motion is detected in your lawn, take a photo from your webcam and upload it to Dropbox.
Lock/unlock your door from anywhere just by tapping a button in your smart phone, this is not a great thing but where Internet of things will come into picture? Assume that you will be coming to your home daily at 6PM? almost 25 days you will come around 6PM in a month? but some times you may come home early due to you 1st shift in work? all these data will be stored in server and analysed. You device will become clever, intelligent by analysing the data. By chance if some one hack your device and opens the door, you device can predict some one unlocked at an odd time, and will notify you immediately. ” Hey ! it looks like you came home early ? if not respond me quickly it is not your usual time of coming home early, your not into 1st shift also. Looks like I am hacked 🙂 please respond…”
Internet of Things now built in your kitchen, connected objects to smarten up your home, Smart home security,
Temperature control at your home ?
Your kids are at door steps, you are still at your office. Ofcourse you can see your kids standing infront of your home using your Internet Of Things connected smart lock. You unlock your door and set room temperature which is suitable to your kids.
Over several days, your thermostat system learn that your kids prefer what temperature and your grand ma prefer which temperature. next time when your kids come home thermostat will automatically sense it ( your do software update over internet) and will adjust the temperature.
Lights controlled at your office, you no need to use ID tags now at office, work space door will open as you go near.
Facts says that smart-home market could grow to $60 billion by 2020.
Your vehicles now are automated, you come near to your vehicle in parking slot, it automatically take reverse and will come just infront of you.
They analyse the traffic data collected over the period of time, will change the route by considering google maps data, history and will decide which route to take today. An urban planner should change and adopt technology and an urban planner should look smart for this internet age.
Your trains will suggest you to change the schedule by analysing peak times, by analysing people’s preferred timings or by analysing traffic data from maps
3. Smart Cities
Your traffic signals will change the timings by analysing traffic data collected or waiting time of people at signals. In Banglore traffic there are so many signals where people simply wait long even though no much traffic, no more such mistakes.
You are near to a shopping mall ? and there is an offer on your favourite branded shirt ? Internet Of Things will make you aware of that, you will never miss that offer 🙂
The street lights will turn on only when people/vehicle approaches near, smart LED lights can be used for this.
Smart LED streetlights in San Diego turn on only when a pedestrian or vehicle approaches—the city recently replaced 3,000 old streetlamps with sensor-equipped ones to save an estimated $250,000 a year.
Your garbage cans are now solar powered and will crush the garbage, will dispatch it to public garbage collector system, they will become smarter they analyse what kind of materials you use, which is good for what by analysing data collected through IOT and will separate out items and learn to segregate by itself 🙂
Real time example ? Philly (Philly is an informal name for Philadelphia, a major city in Pennsylvania) has been able to reduce the number of weekly garbage-collecting shifts from 17 to just three, and realize $1 million a year in savings on fuel, maintenance and labour costs.
London now testing smart cities operating system, An operating system designed to power the smart cities of the future will be put through its paces in London. By 2050 it is estimated that 70% of the world’s population will live in cities. Living Plan IT estimates that £13tn will be spent in developing and regenerating urban spaces between now and 2020.
4. Smart Manufacturing
You devices, sensors, measuring instruments at manufacturing hub now analyse big data collected every day. They will do slight modifications in their process, will grab you more revenue by optimising themselves.
Your smart system will analyse everything and will suggest you for a smart movements of devices, machines which reduces amount of work and increases the manufacturing speed.
Harley-Davidson motorcycle plant in York did something great, One analyst recently told The Wall Street Journal that installing a manufacturing execution system into a single factory can cost between $500,000 and $1 million. But according to SAP (which provided the Harley plant’s software), the factory can now turn out 25% more bikes with 30% fewer workers. Instead of delivering one of its 1,700 bike variations in 21 days, it can manage delivery in a mere six hours.Reference
5. Smart Energy Systems
Collection of data over several years helps to innovate new energy plants, scientists were able to invent wind turbines without blade, bird lovers would be happy with these blade less wind turbines
6. Smart Health Kit
Now a wrist band in your hand analyses you pulse, your breath and predicts well before you will suffer from a disease, there are devices which will analyse your breath and predict breast cancer, Apple has invented Apple watch which is integrated with bunch of sensors.
A device can analyse your heart beat data collected several months and can suggest you precautionary activities to keep you away from heart attack.
7. Smart Agriculture
Now sensors fitted in your field can constantly analyse weather variations and suggest you to take necessary steps for better farming,
They can analyse and predict the time elephants, birds come and spoil your farm and alarm you well before they arrive or can switch on low strength electric fence at the time only.
Sensors can analyse soil moisture records and will switch on the pump only when it is required, can even add fertilisers in water the amount which is required
8. Smart Entertainment devices
Your MP3 players can now analyse which songs you listen what time, they can even analyse the place you are currently in and switch to the song you prefer to listen that moment.
Your music system is now smarter then ever, it can play ABC song when your kids arrive at home from school.
Era of Artificial Intelligence : Facebook new algorithm to identify people
Amost five years ago face recognition was a trend your mobile applications use to set ur face as password for your smartphones, Windows OS introduced face recognition to unlock the system, Facebook used face recognition for tagging people in the group photos.
But Face recognition is now very old, technology is changing so fast that today’s technology will become out dated tomorrow. Every day something new coming to market, people are becoming more innovative than ever. Recognition ? what else can one do other than face and voice recognition ?
Identity of a person based on his unique characteristics
Every person will be having his own uniqueness in his characteristics, the way he dress, his hair style, his body shape, his standing posture what else ?. Identifying a person based on his characteristics can be achieved by properly analysing the data.
Facebook can recognise you in photos for tagging, even if you’re not looking
Facebook is experimenting on a new algorithm which can recognise a person based on his unique characteristics even though his face is not visible. Yann LeCun, head of artificial intelligence at Facebook, is leading a team of researchers. The team is analysing more than 40000 thousands photos from flickr and experimenting in the lab.
However there are certain privacy concerns raised by experts, but Facebook will surely find a way to keep things secured.
Facebook Shows how artificial intelligence improve Facebook to show you perfect posts
Facebook has set up three AI labs so far, the company is investing enough time and effort on AI which helps Facebook to server the content that matches the people’s interest. Facebook revealed backend recognition tech in F8 conference. CTO Mike Schroepfer described new systems for identifying the content and context of videos and sentences.
Facebook working on secretly working onLanguage Technology Groupand experimenting on recorded voices and converting it into text. It has been planned by Facebook to release the feature in Facebook messenger where it converts voice to text.
Facebook’s Video AI prototype
Facebook has developed video AI prototype that identify 485 types of sports but recognises tiny differences among games. See the video given below
AI can read sentences and determine things like who possesses what, or where is an object.
Check this experiment 🙂 AI recognises content from the Lord Of The Rings and able to answer question about the story.
Why AI Matters for Facebook ?
The one and only aim to understand the content, show the relevant content to the user. This is really very much required for Facebook like company because if some one else enter into the market with a new idea then people might start looking towards it. The only thing every one must focus on is never allow your user to think about something else.
Facebook, Google and Apple are really doing a great job in this aspect, Nokia once was a leading mobile phone manufacturers, but one product like iPhone killed Nokia. If you are an entrepreneur then you must learn a lesson out of it.
Selecting certain fields in Hibernate Criteria using Projections
This is not a great post but many people will face this issue and the solution is very simple for which many will spend hours of time to find it.
Issue faced by many are selecting certain fields of the table using hibernate criteria, converting array of Objects (Object[]) to respective custom class object, Even after converting the values for the fields will be set to default rather than actual values of the fields.
Take an example :
Class Person {
private Integer personid;
private String personname;
private String mobilenumber;
private String permanentaddress;
private String localaddress;
public Integer getPersonid(){ }
public void setPersonid(Integer personid){ }
public String getPersonname(){ }
public void setPersonname(String personname){ }
//Other fields getter/Setter
}
In this example assume that you wish to fetch only personid and personname using hibernate criteria
Fetching only selected fields using Hibernate Criteria
Issue : All fields are getting empty/default values after using hibernate projections
This issue is a very difficult to tackle, because hibernate doesn’t through any exception for this but it returns objects filled with default values of fields.
Solution:The solutions is really simple, just use an alias to each field in projections
//See alias personid and personname for both the fields //Projections.property(“personid”),”personid”) and Projections.property(“personname”),”personname”)
The above solution doesn’t work for One-To-Many relationship also when there is an aggregation, has-a relationship.
A Wrapper to fetch selected fields using hibernate Projections for One-To-Many relationship
Download the library given below and import it in your project, then define a Response Class like PersonResponse.java, which should be exact replica of Person.java , where it holds all details of a person fetched from database person table.
Regular Expressions : How Exactly they work internally ?
Regular expressions were playing major role in computers from several decades, they are not as simple as we think. They are need extensive computational power, a decade before regular expressions were a big headache for computer programmers and scientists because they were consuming lot of time to complete the task.
History behind Regular Expressions :
A neuroscientist who tried to understand how the human brain could produce complex patterns using simple cells that are bound together. In 1943, Warren McCulloch and Walter Pitts published “A logical calculus of the ideas immanent in nervous activity”. this paper had a great influence on computer science during that time. In 1956, mathematician Stephen Kleene developed this model one step further. In the paper“Representation of events in nerve nets and finite automata”he presents a simple algebra. The terms Regular Sets and Regular Expressions were born from then. As mentioned above, Kleene’s algebra had only two operations and one function. In 1968, the Unix pioneer Ken Thompson published the article“Regular Expression Search Algorithm”in Communications.
A Pattern in regular expression :
How to learn regular expressions ? How to understand regular expressions?. They look confusing to understand regular expression but regular expressions are an elegant way to do some string manipulations.
We have studied finite automata and the regular expressions all just works on this theory, but Most modern programming languages (Perl, Python, Ruby, Java (and JVM based languages), C#) do not use this approach rather they use recursive backtracking approach. But finite automata is really good to understand regular expressions with its state diagrams and not a bad idea to implement in this approach may be recursive backtracking is better. So do you need a help to understand regular expression? here it is…
Let us take one example, Validating an email address
International Yoga Day : India is witnessing great change
Today is International Yoga day. By the way what do we think of Yoga ? How can one define Yoga ? What are the key benefits of doing yoga ? Please read What Is Yoga to understand Yoga as described by Patanjali. Today is the first ever International Yoga Day and 21st June is the Yoga day. There are overall 50 nations all around the world including china, US, back Narendra Modi’s call to celebrate 21st June as International Yoga Day.
Why 21st June As International Yoga Day?
The first yoga practitioner (Adi Yogi) is said to have begun imparting the knowledge of yoga to the rest of mankind on this day and became the first guru (Adi Guru) (Wiki) and from the perspective of yoga, the Summer Solstice marks the transition to Dakshinayana, the first full moon after summer is the lengthiest day.
Let me explain few asanas
Sarvangasana –Mother of all asanas
Let me start with Sarvangasana , One asana which takes care of entire body, those who practice Sarvangasana daily will feel young and energetic always. Like how mother strives for harmony and happiness in the home, Sarvangasana strives harmony and happiness in human body.
Benefits
There are several endocrine organs or ductless glands in the human system which bathe in blood , absorbs the nutrients from the blood and secrete harmones for proper functioning of balanced and well developed body and brain Many asana have direct effect on the glands , Sarvangasana take care of thyroid and parathyroid glands
Venous blood flow to the heart without any strain due to gravity helps for Healthy blood circulation around neck and chest. As a result person suffering from breathlessness , palpitation, asthma, bronchitis, throat ailmens get relief.
Nerves will be soothed and headaches even chronic ones disappear
Continuous practice will eradicates common colds and other nasal disturbances
Those suffering from hyper tension , nervous breakdown, insomnia are relieved
Bowels moves freely and constipation vanishes , as a result the system frees from toxins and feels highly energetic
Recommended for urinary disorder an uterine displacements, menustrual trouble , piles and hernia
It helps to reveal epilepsy low vitality and anaemia If a person practices sarvanagasana daily will feel new vigour and strength and will be happy and confident
It activates the abdominal organs and relieves people suffering from ulcers
More Asanas –
1. Vajrasana : Start your daily Yoga with this asana, this is the only asana which you can do after having food also.
Benefits :
Calms the mind
Brings strength in back
Improves digestion and removes constipation
Good for urinary problems
Increases sexual organs
Good for digestive organs
2. Vrksasana
Benefits
Tones the legs muscles
Brings strength in legs
Improves concentration – Very very good for concentration
3. Utthita Trikonasana
Benefits
Tones up legs muscles and removes stiffness in legs
removes stiffness in hips and reduces fat around hips
Corrects minor deformity in legs and allows them to develop evenly
Relieves backaches and neck sprains
Strengthen the ankles and develops the chest
4. Parivrtta Trikonasana
Benefits
Tones the thigh, Calf and hamstring muscles
The spine and muscles of the back gains strength and function properly
Increases the blood supply around lower part of spinal region and hence functions normally
Relieves pain in the back, viggorates the abdominal organs and strengthens the hip muscles
5. Virabhadrasana I
Benefits
In this pose chest is fully expanded and helps deep breathing
Relieves stiffness in shoulders and back
tones up the ankles and knees and cures stiffness of the neck
Reduces fat round the hips
6. Salabhasana
Benefits
The pose aids digestion and relieves gastric troubles and flatulence
Spine is stretched back it becomes elastic
Relieves pain in the sacral and lumbar regions
Persons suffering from slipped discs will be benefited more
Bladder and the prostate glands also benefited
7. Maha Mudra – Very powerful Asana should not be practices without a Guru
Benefits
Tones up abdominal organs
Very good for kidneys and adrenal glands
Women suffering from prolapsed womb find relief as it pulls the womb up.
Person suffering from spleen alignment and from enlargement of the prostate gland will be benefited
Maha mudra destroys the death and many other pains. There is nothing that one cannot eat or has to avoid. All foods regardless of taste and even when deadly poisonous is digested. He who practises Mahamudra, overcomes consumption, leprosy, piles, enlargement of spleen, indigestion.
Thank You Modi Ji : We love you…
~~~ Celebrate International Yoga Day ~~~
Happy International Yoga Day
Learn Yoga : Books recommended to become master in Yoga
It is sad to hear that people giving religious touch to Yoga and finally decided to leave Suryanamaskar one of the powerful Asana. Those who are arguing as India is accused of pushing ‘Hindu agenda’ on Muslims. Please grow-up.
To connect to Amazon server using Putty you need to have .ppk file. This can be generated from the .pem file which you have downloaded while creating the instance.
a) Click on the load and load the pem (make file type as All) file.
Give the passphrase and confirm it. Then click on the save private Key.
Login to amazon linux box using putty
b) Now open the putty provide all the details as mentioned below
HostName : your amazon instance address (Public IP) or Public DNS
Port: 22
Go to Auth and give the private key file path.
Go to Data and provide the defaulr user: ec2-user
c) Click on Open in putty. It will ask for passphrase to enter provide the passphrase which you have entered while generating the private key.
After successful login you should be able to see this
Now you are successfully logged into Amazon ec2 box. Welcome to the amazon Linux box
Installation of Apache in the Box
The amazon linux box will come with default java. No need to install separately (if you want you can install the other version of java)
To check the directory of java use the below command
1. The amazon linux box will come with default java. No need to install separately (if you want you can install the other version of java)
To check the directory of java use the below command
echo ${JAVA_HOME}
2. You can install the Apache tomcat using the below command
sudo service tomcat7 start
Or you can also copy paste the apache into some specific path using winzip
Create directory share/tomcat/ inside /usr.
Copy the Apache from your local drive to usr/share/tomcat directory
3. You can install the web-server using the below command:
sudo yum groupinstall -y "Web Server".
Use the below command to start and stop the webserver:
sudo service httpd start and sudo service httpd stop
4. Deploy the war file into the WebApp folder in the apache tomcat then start the tomcat.
Access the application using the http://PublicIPAddress:8080/ApplciationName
Some usefull links and commands regarding setting up the your amazon server