Science behind Lightning and Thunder

 We have been seeing clouds in the sky since childhood. In summer, the water of rivers, ponds and sea

s evaporates into vapor and gets deposited on dust particles in the sky, which we call clouds.

These clouds fall in the form of rain which provides water to the plants. Generally, it rains without any thunder or lightning. But due to strong wind or storm, there are incidents of thunder and lightning.

India is a country where even today many people are unaware of science. Even educated people do not know the scientific reason behind the natural events happening every day.

Only after knowing the causes of any natural event, the dangers associated with it can be avoided.

Every year thousands of people die due to lightning in our country. Most deaths occur in those states where people do not have knowledge of science.

Even during rainy days, people are working in the fields, even after knowing that lightning is flashing and clouds are thundering. Such people think that why will lightning leave the entire field and fall only on them? Whereas in reality, lightning leaves the entire field and falls only on those who are working in the fields.

We know that all things are made up of atoms that have opposite charges like electrons and protons that attract each other.

During rainy days, opposite charges are formed between the clouds due to the friction of air, but the air between them acts like an insulator and prevents those charges from meeting.

But when these clouds come very close with the flow of air or the barrier between them is removed, then a lot of negative charge flows at a fast speed, which produces a bright flash, which we call lightning.

 Due to the high speed flow of charge, strong vibrations are created in the air which turn into a loud sound which we call thunder.

Apart from this, most of the people stand under the trees to avoid rain and when lightning falls on the tree, the people standing under it also get hit.

Let us know the science behind this phenomenon. To play the flute, we have to blow into it. Blowing causes vibrations in the air, which makes the sound. Similarly, other musical instruments also make sounds from the vibrations of air. Similarly, when there is a strong vibration in the air in the sky, we hear the roar of the clouds.

https://youtu.be/IaZ23uT0t9Y?si=m5nS9Pqp27P4hV93

A Time travell in Google 3D Map

Google has revolutionized the world in recent years.  when I compare my childhood  days with present, I find that several new changes have taken place.
It was a tough task to get a specific information in early days. The employees used to memorise data. Nowadays Google search is ready to bring any type of info in few seonds.
Google has  launched many services but I am going to describe  Google Maps. Everyone is familiar with this service. you can find exact location of any place on earth any time. This service helps you find direction to your destination in real time. Google Maps service is improving day by day. Street view and real time map view is being implemented worldwide.
Google has also introduced project loon. They are planning to surround  the sky above the equator with wifi balloons to provide high speed internet in every part of the earth. There is high possibility that they can install powerfull cameras in those balloons to create real time earth view with clear pictures. It will be difficult to differentiate between a Google map view and helicopter view.
If  Google decides to create micro drones or micro quadcopters in future, then there is high possibility that they will use these drones as tools to improve Google map services. It micro drones are equipped with powerfull cams, then video image can be created by appointing these drones everywhere on earth. the video images can be integrated into one to create a 3D map  of the world. 3D map will differ from simple map because it will provide a video view of a particular place.
Further, An archive can be  created of day to day video views. It means video images will be stored datewise.
Then, a time  travell will be possible.
you need to choose a location, select date, time and year. the  Google 3D view will take you in past time.
With the help at computer simulation technology, you will move here and there in your favorite street on Google 3D maps simulation.
 won't it be magical to go back to your childhood and play with yourself?

How to use Android phone as wireless camera

Nowadays very cheap Android phones are available in market. Day by day new smartphones are flooding the market.
After a certain period we feel the need to change our smartphone. With time, new features are added in phones which are quite useful in everyday life. When we upgrade our phones, then old smartphones remain useless. Further, there is no exchange system in our regions. To overcome this problem we have discovered a way to make old phones useful.
You know that approximately all Android phones come with camera and cellular data support. We can exploit these features to convert the phones into wireless camera for monitoring kids or home remotely.
You need to install ip webcam app from playstore and run it in your old Android phone. Make sure that cellular data or wifi is active on phone. Now run the application and click on start server option. You will see that camera window opens and an ip address is shown on the screen.

Now you need to download another app named 'tiny monitor' on the device which you want to use for monitoring. If you are using a PC, you can directly type the ip address in web browser. 

How to put smartphone in child mode

Are you planning to buy separate devices for your kids?
Most of the time you feel like buying smartphones for your kids. Nowadays smartphone or tablet has become a source of learning. There are several apps which help kids in learning and education. At the same time, there are chances of misuse of such gadgets.
We have tried to solve this problem through this tutorial. There is no need to buy separate gadgets, simply share your phone or tab with them for limited time. It's economical as well as safe.
You need to download an app named 'nester' from playstore. The app will convert your device in child mode.
After installing the app you need to open it in parent mode where you can choose apps for your kids from your app collection. Then you need to set time limit. You need to set a pin protection too. In child mode, only selected apps will run and there is no way to escape child mode except one. In right corner of your device, press the screen for 3 seconds, it will ask for the pin which you have set earlier. After you input pin password, the device will escape child mode.

This is quite useful as there is a way to control your kids without wasting their time.

How to use Whatsapp on Computer

                           
Most of the time we work on our Desktop or Laptop. In the mean time if you need to contact your friends on whatsapp then you find it uncomfortable to leave your PC and reach your smartphone and engage in communication.
To overcome this problem i have created a tutorial video to help you continue your work as well as communicate with your friends.
You need to open official website of whatsapp in your browser(web.whatsapp.com). It will display QR code. Now you need to access your Android phone and open whatsapp application. Then go to menu and select whatsapp web. It will open a QR code scanner window which has to be used to scan QR code being shown on webpage of whatsapp in your PC browser.
After the successful scanning, the webpage will open your existing whatsapp account.

This video has two parts. Both are combined into one.The tutorial begins with the steps you will use to take in your Android phone to open QR code scanner to use it to activate whatsapp on your PC by scanning the QR code.

How to talk to smartphones

l have Galaxy note 8.0, which has jellybean 4.2.2 as Android 0S. I am eagerly waiting for the next update kitkat 4.4.2 which is already available in US and Uk.
Actually I wanted to use a feature of kitkat through which you can talk with your device through Google voice search. It's like giving commands in your own Voice. In jellybean 4.2.2, your device will listen your commands only through Google search page. In kitKat 4.4.2, your device can listen your commands from any screen. It's like talking to someone in front of you.
These commands include opening apps, playing songs, taking pictures, recording video and searching internet. The best part is searching internet. you can ask any question in your voice and listen answer instantly. you can also manage the output voice tone. If you belong to India then you can change the output voice tone in Indian English.
Then l found Nova launcher app which is amazing in every way. when you install this launcher, it brings the feature of kitkat 4.4.2 in your old version of Android os. you can give commands to your device from any screen through Google voice.
This feature is very helpful. You can search internet so easily and listen the results. If you are driving a car or bike then You need to use a bluetooth headset to use this feature. you don't have to put your device in front of you if you are wearing bluetooth headset.
l expect Google to add more features in Google voice. l mean, I want Google voice to read messages, Facebook status, comments and all the notifications for me.

No one is VIP

our country has all the resources, wealth, intellectuals and thinkers to make it a developed nation. we have nuclear power and space craft technology. ISRO is the 2nd most advanced space research organisation in the world. recently we launched Mars mission.
There are several NGOs, social workers and religious communities which are working for the needy people. Thousands of crores are collected as donation by different religious organisations.still India has maximum number of poor people in the world.
Apart from all the potential we have, corruption, Mismanagement and faulty ruling system are responsible for the backwardness of the country.
India is a democratic country. The power is in the hand of the public but unfortunately, we are still living in monarchy system. only elected representative is given the power to rule but actually he is a public servant. We make mistakes by treating elected representatives as VIPs. this is a sign of monarchy system where a king is Superior to all. this VIP treatment has destroyed the whole ruling system of India. people enter into politics only to rule and exploit the people and resources as a King. very few politicians are public servants.
If we have to bring real Democracy then VIP culture must be terminated.All the facilities which are provided to elected members, make them corrupt and inactive.

How to cope with new technology

it's not possible to abandon the use of technology in daily life. every new thing brings pros n cons with it.
Experts say parents are "clueless"
about the harmful effects too much
technology has on their kids.
According to pediatricians, parents
need to take back control of high
tech entertainment.
Many kids spend more time looking
at a screen than they do anything
else, including school and sleep. Easy
access to TV, video games,
smartphones or tablets makes this
not only possible, but also probable.
For children between the ages of 8
and 18 that adds up to an average of
seven hours a day. Even babies are
plugged in, with 40 percent under age
2 having used a smartphone or
tablet.
it's time to reschedule our life n follow some rules:-
- No screen time at all for kids
under 2.
- For older children, two hours a
day, tops.
- No technology in a child's
bedroom.
- When kids watch TV it should be
with parents who can then discuss
the content.
according to Dr. Harvey Karp, "Light actually goes into your eyes
and it turns off melatonin, which is
your brain's normal sleep hormone,"
he explained. "So looking at DVDs
and television right before bed time
actually disturbs a child's sleep and
makes it harder for them to fall
asleep."

Democracy in danger

The world has chosen democracy over monarchy to help people benefit from this system. As we know, in monarchy system, there is no role of common man in ruling system.Actually, A monarchy is a Government system that has one person as the permanent head of state until he or she dies or gives up his or her position. In contrast, Democracy is a form of government in which all eligible citizens participate equally, either directly or indirectly through elected representatives in the proposal, development and creation of laws.
There are 4 pillars in democracy - Executive, Legislature, judiciary and media. The most possible danger for democracy is media. Remember the fact that newspapers, news channels, radio and social sites are the parts of media. crony capitalism has to be blamed for the possible misuse of media.
crony capitalism is a term describing an economy in which success in business depends on close relationships between people and government officials.
nowadays upper middle class buy shares of few renowned companies. even the government officials invest in these companies. Success in business will benefit all of them who have bought a lot of shares of these companies. That's why crony capitalism came into existence. It will benefit the businessmen and government officials.
As a result, few rich and corrupt people will use all the resources and a majority of people Will live in poverty. this is Injustice.
Further, the corrupts ( media + corporate + politicians) will join hands to maximise their dividends. Big corporations are now investing in news channels. They want to own most of the news channels to hide their black money and corruptions from the public. They want to use media to advertise the present government and hide the wrong deeds.
India is a county which is best suited for crony capitalism. most of the people are illiterates. They don't have any other Source of information except radio and television. whatever they listen or watch they believe it to be real. They will be shown that international economy is down so there is unemployment and poverty in the country.

My Daydream 3

ignorance is the root of all the miseries. let's make this world a place of intellectuals by spreading knowledge everywhere. a large number of children on this earth r illiterate or poorly literate. it's time to use technology to educate each n every child. quality education never reaches to the children living in poor countries. there is scarcity of quality teachers in developing countries. further few people r choosing teaching as a career. in this scenario it's a challenge to provide quality education in limited resources.
we r going to use low cost tablets like aakash4 as tools to help children in learning. there r several free apps available in playstore for kids. these low cost tablets will use internet with parental lock. we can easily create applications with auto reply function in different languages. all the possible questions which appear in mind of certain age groups, can be used in the app with answers. the apps to improve pronunciation, comprehension, communication, grammar, reasoning e.t.c. r available in playstore. live help of teachers can easily be provided by the apps like wechat n line. students can also connect themselves with other students for further assistance. audio n video contents on various topics can be prepared to help millions of students to develop right concept. online exams can be arranged for the evaluation of students.

my day dream 2

in this blog I am describing how display technology will improve and diminish in size. I am talking about glasses which will display every content on the go. Google is developing such glasses which will work like a smartphone and possess artificial intelligence. various social problems will be solved when people will be injected with a micro chip into their blood vessels which will collect every physiological information, contain GPS, identity code and wifi. government will upload personal data of every citizen online. this will help to identify anyone by receiving the code wirelessly and matching it with the universal data banks online. the personal collected data will include name,address,qualification, contacts, medical history,character record and genetic map. as soon as two persons will meet they will know each other properly so criminals will be identified easily and people will be alert. all the above incidents r possible when we have wearable smart glasses. when u go near a person ur glasses get the code and automatically collect information if all is not well then ur glasses will vibrate to warn u. doctors will save time during treatment,as they will get all the information regarding the health of the patient during first meet.

My Day Dream

in my previous blog, named next gen smartphone, I described how smartphone will control each domestic appliance through wifi. now I am describing how new technology will affect our life style. recently an Indian company launched a cooking Android device which can cook thousands of recipes itself. u have only to provide cooking materials and then send SMS. in Japan a robot show held previous month where next gen robots were performing different activities. there is no surprise if we would be able to hire robots for household works. Google map is trying to improve it's service so it's possible that millions of Web cams may be installed at every corner on the earth to provide live traffic report. education and health services r bound to be online to provide world class and quick service. all the satellite channels will launch their apps on popular platforms to allow easy access. Web portals will be like channels as fast internet speed will help the websites to show live content. books and pens will be replaced by tabs and stylus.

Next Gen Smartphone

50 years ago, our expectations from technology were limited. we never thought about smartphone to take control of our lives. then what can we expect 50 years hence? a powerful voice assistant app which understands our every tone, integrates with information, location, timing, calendar and facial expressions. when everything is smart then why not home? wifi technology should be exploited in such a way that every electrical appliances could be controlled wirelessly from anywhere. even bulbs, doors, cams, vehicles and gates should be made compatible to be controlled through wifi. a router like device which would connect all electrical appliances and smartphone will control this device through net and finally the appliances will be controlled remotely.

need for capacitive stylus

everyday we spend hours with smartphone and completely depend on it for various activities. we don't want to carry multiple electrical devices. nowadays super smartphones are available in the market which can do everything. for example calculator,maps,wikipedia,watch,camera, torch,paper,dictionary,transistor,Walkman etc have to not be carried separately. still we need to replace pen and paper with smartphone and stylus. there are other benefits also. use of capacitive stylus will revolutionize the world. i am sure more people will indulge in drawing with stylus. education sector will get its virtual chalk to be used on virtual online whiteboard. engineering students will find easy to create various models. professionals photographers will be most benefited. the world would be more creative.

education system to produce labours

I belong to Bihar in India. here the government has applied a  new system of education. now the question paper will be asked in objective types. so there is nothing for writing section. obviously students would ignore their  writing skills  and finally forget how to write application, essays, blogs, articles,etc. these passouts would  only know how to read. that why Bihar will produce labours in coming years.