0:01 Let's get started. Where did Anshu Van go? well you are doing well. Ajay sir please start. Turn on the mic.
0:49 Ajay ji please start. Yes, yes sir, one second sir, has sir shared the screen in this ? Yes, yes, yes sir has shared the screen. Ok ok, can you hear my voice sir? Yes, definitely come. The sound is coming. Ok sir. Hello everyone. A warm welcome to our Zoom meeting today. I hope you are enjoyed yesterday's session on Spirulana and found the hands-on practice with AI and content creation useful Our refresher course continues with the
1:35 theme of environmental studies and sustainable development today we are today we are honoured to have Doctor R S Chandok with us Doctor Chandok is Principal of Shri Guru Teg Bahadur Khalsa College in Jabalpur and he is an expert in physics, electronics and nano science with over 30 years of experience he has written 42 books and published more than 60 research papers he is also the recipient of the Bharat Gaurav Award and a lifetime achievement award he has contributed significantly to higher education and
2:22 scientific research please join me in giving a warm welcome to Doctor R S Chandok sir please sir thank you very much sir thank you welcome sir thank you first of all my namaskar and namaskar to all the teachers and what we have to do today is for you people Also, there is the intersection of physics and environment in sustainable systems. What kind of a confluence of physics and environment is to be done for these sustainable systems, because I am a professor of physics and how can we connect environment with physics, how can we, today there
3:09 is a paper on environmental science for children, with that paper, if we want to connect these things in physics, then in what way can we connect these things, what is our sustainable system, what is our sustainable system that can merge physics and environment with each other, can connect them and in this, I will first talk about Indian Knowledge System, I have also made some slides of Indian knowledge tradition in Hindi, so that I can connect you with the Indian Knowledge System, so if we first discuss according to the Indian Knowledge System, then first of all, what is environment in the Indian perspective? If we look at Indian culture,
3:56 environment is not just a resource. This is worthy of worship. Like we talk about Vayu deity, Agni deity, Mother Earth, Varun deity, Sky, all of these are mentioned in our Rigveda, Atharvaveda. It comes in our own Guruvani. When we read Guruni, read Guru Granth Sahib Ji, it is mentioned in that also. Pawan, Guru, Pani, Pita, Mata, Earth, Mahat, all these are not symbols, rather the elements of the environment are in the form of our consciousness and we consider them worthy of protection. That is why we say that the Earth is our mother and we are her sons. You
4:41 see that there are five things on this earth, these Panchbhoot are Mahabhuta, Earth, Water, Fire, Air, Sky; if I relate it to physics, then these solid, liquid, plasma, gases and space, these five things which are our ecological system, are balanced, if we connect these five elements with our Indian knowledge system, then the same balance of these five elements is necessary for the environment just like these five things are very important for modern physics, it matches with them and these all five things are completely divided 20% in all the five things, whether it is air, fire,
5:28 water, sky, earth, all these five things are 20% 20%, if there is imbalance in any one of these elements, then we hear that there is water pollution, there is air pollution, and our life gets affected too. So all these things match today's theory of ecological balance. Now let us see what is environmental science ? What is environmental science? So it provides a framework for seeing how diverse components like human activities and natural processes are. Look, these two words are very important. A our own human context, human activities and
6:13 natural processes influence each other. It is a framework to influence each other enabling the development of more integrated and effective solutions for environmental challenges and sustainability. I will tell you about it with the help of a diagram, see, on one side I have taken environment and on the other hand I have taken physics because physics is a kind of energy without mass, so look there, the most famous formula of Einstein today is e = mc2 and on the other side our entire environment, if we look in this environment, then two things are mainly important for the environment. The environment shows us what to do and
6:59 physics shows us how to do it. These two things are complementary to each other. Environmental science shows us what to do and physics tells us how to do it and together they form a systemic process that protects our environment. And in this surf that you are watching, you are seeing many things related to physics. All these principles of physics, all these formulas of physics are somehow connected with the environment. This is the thing I want to tell you in a balanced way because only then will you be able to learn how Physics and Environment are complementary to each other.
7:46 This is the scientific approach of the Indian knowledge tradition. We believe that the Indian Knowledge System is not merely a religion or philosophy but a scientific outlook which looks at life, nature and the universe holistically. Here we have considered science as a knowledge that is why you see that today most of the problems that we are facing are due to not having a scientific approach. That is why we want to teach children in the new education policy that you can study any subject. If you are not from science. Now you must have seen many teachers who belong to Madhya Pradesh. The syllabus of the new education policy is changing. Where MDC, which is a multidisciplinary subject, is coming, it is clear
8:32 that the student who has studied science, will not study science, which is the multidisciplinary subject of MDC. But the arts student will study science, the commerce student will study science so that science will be brought to everyone in a more realistic form. Because science is something that is based on logic, experiments and deep observation. Science is nothing unless you take the logical, experimental and its observations into account. And the sages have also seen and understood it in this manner. He also understood everything logically. Now you must have noticed that along with Astrophysics, Astrophysics is completely dependent on Astrology. You must have noticed that in this month there is lunar eclipse as well as solar eclipse, both these
9:19 things are happening in this month only because we have been reading since ancient times that there is a tide coming near the sea. It is coming due to gravitational forces. Our sages used to say. So we did not look at that science from a scientific point of view. But if we look at Indian culture, all these things are based on science and from the point of view of science, there is Indian knowledge tradition. Now, what is the place of Physics in this Indian knowledge tradition in science because there are many sciences and one of them, Physics, depends on nature and Physics is always the medium to understand natural phenomena. All the natural events, natural observations are physics. And the environment is its stage. As
10:07 I told you earlier, environmental science shows us what to do and physics tells us how to do it. If both of these are seen from the Indian point of view, then this physics is not just the study of matter or motion, rather it is seen as the knowledge of elements and the process of knowing it, how the whole universe functions, is completely dependent on physics. It all depends on physics. Now if we talk about Physics, then three things are very important in Physics. One is matter, one is energy and one is force. Physics depends on these three things. Matter, Energy and Force. If I talk about matter, then
10:53 how is matter made, how does it behave ? We can understand this only in the language of physics. If we talk about energy, how is energy generated, how is it emitted? How does the transfer happen? How is it not destroyed and if we talk about force, then how does force accelerate, stop or change the direction of objects. Only physics can tell that these three things are very major observations of physics. So, you can see below in this figure that there is a matter. With that, forces are being used and energy is being generated. I have tried to explain three things separately. And it is a fundamental science that seeks to understand
11:39 the universe at its most basic level from the smallest subatomic particle to the largest galaxy. From the smallest particle to galaxies, if we talk about it, it can be studied in physics and we study physics on it. Take these three basic fundamental things: matter, force and energy. Now if we talk about environment, physics is the fundamental to environment, environmental monitoring and it provides the principles behind the technologies used to measure and analyze the environment. And this application spawn from ground based sensors
12:25 to satellite based remote sensing. That means if you talk about even the smallest sensor and talk about a remote sensor. Talking about satellite remote sensing, its main application takes physics into environmental science. When we talk about small technologies, these are ground level things, ground sensor things, then you will see that if you want to check the water quality, you have to check the temperature, gas and water quality. If you have to measure the sensor data below, then this sensor which is being used, this sensor will tell how much pollution has occurred in your water in its entirety. Water quality sensors are used to identify which chemicals are present in it. This first one that I am showing you above is a water
13:11 quality sensor and the one attached to the side detects it. Temperature Gas Water Quality Similar Transactions All these sensors are our ground state sensors. And in this regard, we have now shown you the satellite sensor on the side, infrared imaging is visible in the satellite sensor. How much heat does the Earth have? Internet connection sound is coming sir. Sir the sound is coming a little cut. Yes sir, some sound is coming with a cut-cut sound. No, it is coming clearly here. No, this issue is coming up here and there. Mine is clear too.
13:57 Mine is also coming clear. Sir, is the voice clear? The voice is correct sir. Now even the slide show isn't working. It was happening sir. Earlier a slide show was also going on. The sound is also clear. The slideshow is not working right now. Yes. It was going very well about physics and environment. Chandra sir will join soon.
14:47 Although my graduation was also from Khalsa College, so just hearing the name Khalsa makes me enjoy it and in our Ganganagar, here there is adjoining Punjab, so it means there is Punjabi culture, in a way the contribution of Punjab in education has been very great, I mean from the colonial era Maharaj gave good universities and good system of study. Which college are you from sir in Ganganagar? I am from Dr. B.R.Ambedkar College, Ganganagar. Rajendra Sir, is he the same in Maths? Yes yes Rajendra ji, he is with me. Sir, we were with me in Bundi. So, I was with you in Bundi. Oh wow,
15:32 you have also been the principal in Bundi. He was in our music here earlier. yes vijendra sir. Vijendra ji has a nice personality, he is very nice. We listened to his ghazals a lot. That 's right sir. Correct. Yes. He is a very wonderful man. Yes, it is very good. Right now it is Jaipur only. Yes, it is in Jaipur right now. Yes Jaipur now. So come sir, let me show you the border here. For us it is exactly 12 km. This is the border. Now he has told us, see when he calls Rajendra ji. Absolutely sir. Does anyone make a program? I will show you my head at least once. There is no need for Rajendra Singh Sir. Rohit sir will show you. Yes. No no, absolutely, let the
16:20 water level in Ganganagar reduce a bit. Hey there is life in water. Sir also said that 20% water should remain as water, friend. This time sir, there is plenty of water everywhere. This time our Kota college was flooded with water. I had even put up a status and people came asking me to ride the boat. Yes. Yes, no no sir, this time the rainfall has been very heavy and our area is completely irrigated, that is why sir, there is a lot of rain in the catchment area of Sutlej, there is a lot of rain in the mountains in Himachal, so because of that, there is flood in entire Punjab, here the Ghaggar river passes through Ganganagar and enters Pakistan at the end, there is a flood situation here also, okay, this is habitual, people are also not like this,
17:05 people are also habitual about this thing, that is, the morals remain high. No one gets scared like this. Has such Chando Sir gone somewhere? Sir, I think their connectivity will be well reconnected. Sir, let us talk to him once on the phone. Yes, do it sir. Ok. Do it comfortably.
17:57 some of these
