Author Archives
Welcome to my website! Here's a little about me. I completed my Master of Science in Physics (Nuclear Physics) in the early 1980s from what was then called the University of Bombay. I took up teaching in a college immediately and taught various branches of physics such as nuclear physics, atomic physics, electromagnetism, classical mechanics, electrostatics, analog, digital electronics, etc.
Computer science was introduced as a subject at college level around the mid-80s and since my college had no teacher for that subject, I took up the challenge and learned, almost by myself, basics of programming and computer science. Those were the days of IBM PCs with 2 floppy drives (A: and B:), that ran MS-DOS and programming was in GWBASIC (a variant of BASICA), COBOL, FORTRAN 77, dBase III+, and of course, Pascal. By then computing bug had bitten me too and I started using programming for various tasks, including the 'boring' administrative tasks, and the exciting tasks of writing programs that simulate certain phenomena in physics - radioactive decay, projectile motion, capacitor charge/discharge, pendulum behavior, etc.
Soon I 'graduated' to C, C++, Java, 'advanced' Java, Python, C# and taught many subjects of computer science and IT such as computer graphics, computational mathematics, computer networks, programming, operating systems, data structures, financial applications of Excel, scientific applications of spreadsheets, etc.
I have also authored books on computers for Third Year B. Com and Second Year B. Com (University of Mumbai) and BMS (Computer concepts for management students).
My special interest in writing is in writing on physics, competitive exams in physics, programming, electronics, and computer science.
I am passionate about science, technology, and education. Through this site I am sharing my thoughts on learning and teaching physics, computer science and also, occasionally, mathematics and statistics. I am sharing ideas on how to study (or learn, although both these words are not synonymous) physics, experimental techniques in physics, how to make notes on physics, computer science, mathematics and statistics This information should be of interest to all students of physics at all levels, K-12, IGCSE, IB, AS/A levels), HSC, and undergraduate levels of science and other equivalent exams.
At this time, I engross myself by learning the, almost mysterious, subjects of data science, artificial intelligence and machine learning.
I am happy to share my thoughts and will appreciate any feedback. Come on board, and let’s see how we can make this planet a better place!
Mukesh Tekwani
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C Programming
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Python Online Course
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Question Bank – Why & How
Why is it Important To Solve a Question Bank? Before you run a marathon, you must practice everyday. Your Board exams are like a marathon. You must be prepared to answer the question paper, in the allotted time and be… Read More ›
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Which are the best desktop computers to teach and study online for teachers?
Online teaching and learning has become essential in these testing times of COVID19. Teachers all across the world are using their desktop computers, laptops, mobile phones, tablets to stay in touch with students. Earlier, while a teacher would teach 40-60… Read More ›
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Why are open-source Linux-based laptops so expensive?
The cost of a laptop is made up of three components: Cost of hardware Cost of installed software (operating system + applications like MS Office, etc) Warranty, extended warranty costs An open-source Linux-based software should be cheaper but if there… Read More ›
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Poll for Study Material on Digital Electronics
This poll aims to find the topics that students find difficult in the subjects of Digital Electronics, Logic Gates, Boolean Algebra and computer architecture. Please select the topics that you find difficult. It will help me in deciding for which… Read More ›
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Images From The Past
5th Solvay Conference, 1927.
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The Ideal Teacher
To all teachers: “Teach well, because you are going to retire in a world that your students will run”. Here’s a bit I came across recently in a very old issue of the, now defunct, Science Age magazine (Sept 1985)… Read More ›
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FlexClip Video Maker
Question 1: Which is the second largest search engine? Question 2: Which is the largest online platform for learning? You got it right both times: YouTube. Today, more than ever before, video has become the de facto medium of sharing… Read More ›
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Computer Algorithms – An Introduction
The word algorithm is named after the ninth century scholar Abu Jafar Muhammad Ibn Musu Al-Khowarizmi. An algorithm is a step-by-step procedure by which a computer can produce the required outputs from the available inputs. An algorithm must have a… Read More ›
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Did You Know This ‘Bit’?
The words ‘bits’ and ‘software’ are part of our daily vocabulary now. Yet, you will be surprised to know that the word ‘bit’ was originally planned to be called either “bigit” or “binit” – from the words BInary diGIT or… Read More ›
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What about Learning?
COVID19 has caused more destruction than anyone could have ever imagined. What is becoming clear now is that COVID19 has also challenged the traditional school–> college —> university education model. It remains to be seen how education will change in… Read More ›
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Learn to Develop an Android App – No Experience Required
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MASK your Personal data
There are a lot of posts nowadays on social media, offering certain services or products or jobs, for free. The intriguing feature of all these posts is that they will ask for your phone number or/and email address, or may… Read More ›
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Flowchart Basics
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Cyber Laws
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Decimal Number to Octal Number Conversion
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Online Teaching & Learning for CBSE Class XII Computer Science
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Experimental Physics
Experimental work in a laboratory is an essential component of physics learning and teaching. Students often refer to experimental work in physics laboratory as ‘physics practical’. So why is physics practical important and what do you have to do in… Read More ›
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Video Tutorials for Digital Electronics and Computer Science
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Gian Mandir – Learning App
In an earlier post I have discussed about the YouTube channel of Prof (Dr) D. R. Vij. This channel has a massive collection of over 1600 video lectures of classes 9 to 12 – probably one of the largest collection… Read More ›
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The Hidden Meaning of Words in Science Question Papers
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Online Learning – Few Tips
The first thing you will observe is that this post is not about online teaching, its about learning. So, although teachers and educators are welcome to read the post, it is more important for online learners and parents of young… Read More ›
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Cambridge IGCSE Physics Syllabus-based Video Lectures
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Prof. (Dr.) D. R. Vij – YouTube Channel
Teachers all over India have taken up the challenge and are continuing to teach even in these difficult times. Dr D R Vij (Retd.) is a renowned Professor of Physics from Kurukshetra University, India. Dr. Vij has created a YouTube… Read More ›
