TLC visited STEMland


From TLC around 14 children and one teacher her name is Maya came to visit STEMland.  They wanted to have an idea of how STEMland works and they want to have similar set up to their school. Children were curious about the way we work and the rules we follow.

Fig:1 Playing Games
Fig 2: Solving Cast Puzzle







Children were happy and they were curios to solve puzzles also they followed our STEMland rules. I felt that what they expected that was fullfilled for them on that day (Thursday 11/07/2019)

Inner chamber concentration

~  Abilash , Murali

The  STEM Land team usually does 10 minutes of concentration everyday in the morning as a routine. This Wednesday(10/07/19) as a change we all booked and went to the Matrimandir inner chamber. We did the concentration for about 40 minutes. It was a different opportunity for all of us to visit Matrimandir as team, which made us feel really good.

Individual’s experience

“Though I have gone to Matrimandir many times, going as a team was a different experience, while leaving the chamber I felt good and light.”-Abilash

“I was able to still myself, as I have a connection with the place, it was peaceful for me.” – Naveen

“After the concentration I was able feel the peace and felt more concentrated.” – Prabha karan

“During the concentration, I was able pause my background conversations and move forward.” – Sandhiya

“Initially I felt tired before entering the inner chamber, but after the concentration I felted refreshed and focused.” – Murali

Documentation on fix issue for nltk,nltkdata

To fix the issued and resolve to install nltk and nltk data

Unable to acquire dpkg fronted lock (/var/lib/dpkg/lock-fronted), is another process using it.

 sudo apt-get install python-nltk

E: Could not get lock /var/lib/dpkg/lock-frontend – open (11: Resource temporarily unavailable)

E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?


Find and kill all apt process which is running.

               Ps -A | grep apt

Now kill the process using the below commands

             kill -9 processnumber


             kill -9 SIGKILL processnumber

use this commad,

nltk-> sudo apt-get install python-nltk

nltk data-> sudo python -m nltk.downloader -d /usr/share/nltk_data all

step-2:- Check the location of lock-frontend

ls varlib/dpkg/

step-3 :- Remove the lock-frontend

sudo rm var/lib/dpkg/lock-frontend

step-4:- Verify

ls /var/lib/dpkg/

Refer to this link:

Documentation on debugging issue for creating database

While running the crawler code to extract data about the categories(Beauty -> Tools and Accessories  products) in,  I had come across the following error. I will be showing what I had done to rectify the error.

runfile(‘C:/Users/Dell/Documents/Quilt/quilt-beauty/quilt-beauty/’, wdir=’C:/Users/Dell/Documents/Quilt/quilt-beauty/quilt-beauty’)

Error tokenizing data. C error: Expected 7 fields in line 68, saw 8

If you look at the database, the database will be empty.

To look at the database, open the ‘db.sqlite3’ file using DB Browser (SQLite) application.

To rectify the error, we need to open the .csv in a normal word editor e.g. notepad++

You will be able to see the ‘ ” ’ double quotes at the beginning and at the end.

Remove the double quotes and save the text file.

NOTE: If there are already data in the database, to remove the data from the database do the following.

Open the db.sqlite3 file using DB Browser (SQLite) application.

Go to ‘Execute SQL’ tab

Type the following command

delete from file_name

delete from beauty_skin_categories

The above command will delete the data that was present in the database.

To execute the command run the command, click the run button.

After running the command click ‘Write Changes’

Then open Spyder and run the code. This time it should work.

The database for the beauty_skin_categories table will be created.


Install Alice3 on Ubuntu 18.04


Alice 3 for Ubuntu 18.04

Step 1: Install oracle JDK (download the .deb file from this link  and inside the link select the  file call Java SE 11.0.3 (LTS) for ubuntu 18.04)

Step 2: Set Path

Type this command in terminal:

sudo nano /etc/profile.d/jdk11.r  then give Enter

It will open a vi file there you type the below line in vi file:

export JAVA_HOME=”/usr/lib/jvm/jdk-11.0.3”

export PATH=”$PATH:${JAVA_HOME}/bin”

Press Control+x to exit the file

Step 3: Check JAVA version:

Command: java -version

Step 4: Make the Alice3 file excutable 

Go to that alice directory and type below command

Command: chmod +x filename then give enter

Step 5:Run the file by using ./filename

How to use Git in Eclipse(Cloning a respiratory)

–  Prabaharan

1.Open your Gitlab

To copy the URL that you want to clone in your local respiratory.

Go to: Project -> Details

Select “Clone” and under “Clone with HTTPS”press on the “copy URL to clipboard”


2. Open Eclipse

Go to:  Windows -> Preference -> Open Preferences -> Other

‘Open Properties’ window will pop up

Select ‘Git folder’ in that as shown below and press ‘Open’

‘Source Git Repository’ window will pop up

Paste the copied URL in the URL text box under the ‘Location’ tab

Also provide the ‘User ‘ and ‘Password’ for under the ‘Authentication ‘ tab.

Press Next

‘Branch Selection’ window will pop up

Select the respective branch that you need

Press Next

The directory where the repository to be cloned will be shown.

After that select ‘Finish’

Select the folder which you want to import.

Right click on the folder and select ‘Import Projects’ from the dropdown.

This will lead to location of your local directory.

Click ‘Finish’ to complete.




Learning Percentages and Discounts using Graph

The 8th graders were working on percentages  and finding the discounts. Sanjeev, taught the children on how to find the discount for a percentage using a graph sheet. Let’s see how to find discounts using graph sheet.


A book costs Rs. 500. The shopkeeper sells the book with 10% discount. What is the cost of the book?

1. Darw the X-axis and Y-axis.

2. Then on the X-axis mark the percentage(upto 100 with 1cm = 10 units)

3. On the Y-axis mark the amount of the book(upto 500 with 1cm = 100 units)

4. Then mark the point where the 100 from X-axis and 500 from Y-axis intersects.

5. Draw a ray from the point 0, crossing the point where the 100 from X-axis and 500 from Y-axis intersects.

6. Then for 10% discount we know that it is less 10 less than 100. So, it would be 90. So, from 90 in the draw a line that intersects the middle line.

7. Now, from the point that intersects the middle line from 90 draw a straight line to Y-axis.

8. This will give the amount which is 450.




What is ssh?

ssh is a kind of network protocol to communicate between two or more computer. communication between client to server.

ssh is default install in all ubuntu pc’ s.

ssh -client tool to communicate to the server.

We need to install the open ssh server in the server pc’ s.

What is open ssh?

Open ssh is the server to running inside the server

For example:-

Go to the terminal, and type this command

~ssh student@ (It will access the remote server)


fs is meant by file system (tries to access the file system -direct access(directory))

Here is the setup process for ron and roff for all system :-Setup_ron_roff_Documentation

Here is the code for ron and roff:  ron and roff code



Inspiration “Secret of concentration”

Transferred to the next group this week 🙂 , and worked on the secret of Concentration.

The following passages were translated to Tamil and read with the children in both English and Tamil.

From the teachings of Swami Vivekananda :


To me the very essence of education is concentration of mind,not the collecting of facts.If i had to do my education over again,and had any voice in the matter,i would not study facts at all.I would develop the power of concentration and detachment,and then with a perfect instrument i could collect facts at will.

How has all the knowledge in the world been gained but by the concentration of the powers of the mind?The world is ready to give up its secrets if we only know how to knock,how to give it the necessary blow.The strength and force of the blow come through concentration.There is no limit to the power of the human mind.The more concentrated it is,the more power is brought to bear on one point;that is the secret.

Do you see,simply by the observance of strict brahmacharya(continence)all learning can be mastered in a very short time-one has an unfailing memory of what one hears or knows but once.It is owing to this want of continence that everything is on the brink of of ruin in our country.

Herein is the difference between man and the animals-man has the greater power of concentration.The difference in their power of concentration also constitutes the difference between man and man.Compare the lowest with the highest man.The difference is in the degree of concentration.This is the only difference

Take one idea,Make that one idea your life;Think of it,dream of ir,live on that idea.Let the brain,muscles,nerves,every part of your body,be full of that idea,and just leave every other idea alone.This is the way to success,and this is the way spiritual giants are produced.Others are talking machines.

How are we to know that the mind has become concentrated?Because the idea of time will vanish.The more time pass unnoticed the more concentrated we are.In common life we see that when we are interested in a book we do not note the time at all; and when we leave the book,we are often surprised to find how many hours have passed.

During the whole week(201906 22-29) and the sleep over the children worked on creating their own drawings and depicted the following story.

Group members: Shakthi, Murali, Ajay, Kalai, Jagathishwari, Sundar(Newcomer), Adhiyaman, Hemavarshini, Parimila, Stella

link to PDF: Arjuna Secret of Concentration

20190706 – children creating their own presentations:

link to PDF: Secret of Concentration V1

Recitation work from the children:

Recitation Presentation

tamil english  translation text

2019/08/17 One liner for our passages

1.Concentration is the essence of all knowledge, a trained mind never makes a mistakes.
2.Collecting facts with the power of concentration and detachment is the essence of education.
3.The world is ready to give up its secrets and the idea of where to look for comes through concentration.
4,All learning can be mastered in a short time by following the code of strict Bramacharya which involves immense concentration.
5.The difference between human beings is in their degree of concentration.
6.You will know that the mind has become concentrated, when the idea of time has vanished.
7.Success in life depends on clear thinking and intellectual understanding which is inherited by the power of concentration.