कुनै एक समयको कुरा हो, कुनै एउटा गाउँमा एक मानिस बस्थे । उनी सानैदेखि सपना देख्ने व्यक्ति थिए । सधैँ जीवनमा थप केही गर्न खोज्थे । उनी साहसिक, सफलता र प्रेमको लागि चाहन्थे । उनले साेचे कि बाहिर कतै, भाग्यले उनका सबै इच्छाहरू राखेका छन् ।  एक उज्यालो बिहानै, सूर्यको किरणले क्षितिजलाई सुनको रङले छाएपछि, रामले आफूले चाहेको सबै कुरा खोज्न यात्रामा निस्क्यो । दृढ सङ्कल्प र आशाले भरिएको हृदयले उनी आफ्नो परिचित परिवेशलाई पछाडि छोडेर उनी यात्रामा निस्के ।
दिनहरू हप्तामा परिणत भयो, र हप्ताहरू महिनामा परिणत भए, जब भेडाले टाढाको भूमिहरू खोज्यो, बाटोमा अनगिन्ती चुनौतीहरूको सामना गर्नुपर्याे । तर हरेक बाधालाई पार गरेपछि उसको आत्मा बलियो हुँदै गयो । उसले कहिल्यै विश्वास गुमाएको छैन कि उसको सपना उसकै अधीनमा छ । एक नराम्रो दिन, रहस्यमय जङ्गलमा घुम्दै गर्दा, भेडाले लुकेको खजानामा ठेस खायो । यो चम्किलो रत्नहरूले सजिएको छाती थियो, एक अपरिवर्तनीय आकर्षण बाहिर थियाे । उसको हृदय उत्साहले दौडियो जब उसले यसलाई खोल्यो, उसको जङ्गली सपनाहरूभन्दा बाहिरको अकल्पनीय धन र खजानाहरू प्रकट 
भयाे ।
अचानक रामले आफूलाई ऐश्वर्य र अपव्ययले घेरिएकाे पाए । उनका दिनहरू भव्य भोजहरू, विलासी भोजहरू र उनका हरेक आवश्यकताहरू पूरा गर्ने सेवकहरूले भरिएका थिए । उसले आफूलाई चिनेका सबैबाट धन, शक्ति र प्रशंसा प्राप्त गरेको थियो । यस्तो लाग्थ्यो कि उसले चाहेको सबै कुराको खोजी अन्ततः सफल भयो । तर दिनहरू हप्तामा र हप्ताहरू महिनामा परिणत भएपछि, रामले आफूले हासिल गरेका खजानाहरू मात्र भ्रम थिए भनेर महसुस गर्न थाले । चम्किला रत्नहरू चिसो र निर्जीव थिए, उनीभित्रको शून्यता भर्न असमर्थ थिए । भव्य पार्टीहरू र भोजहरू खाली र खाली थिए, साँचो सङ्गत र आनन्दको अभाव थियो । उहाँलाई भेट्ने सेवकहरूमा साँचो हेरचाह र स्नेहको अभाव थियो ।
भौतिक धन र सांसारिक अभिलाषाको खोजीमा रामले जीवनका साधारण आनन्दहरू त्यागेका थिए । सतहीताको सुनौलो पिँजडामा फसेर आफ्नै इच्छाको कैदी बनेको थियो । उसले खुसी ल्याउने सोचेका कुराहरू उसको आत्मालाई बाँध्ने बन्धनमा परिणत भएका थिए । खालीपनको गहिरो भावनाले अभिभूत भएको, रामले आफ्नो नयाँ धन र विलासिता त्याग्ने निर्णय गरे । राम आफ्नो गाउँ फर्किँदा, उसले साधारण जीवन बिताउने साधारण मानिसहरूलाई भेट्यो । उसले परिवारहरू बीचको माया, साथीहरू बीचको हाँसो र एकअर्कालाई प्रस्ताव गरेको दयालु अपरिचितहरूको साक्षी थियो । आफ्नो गाउँमा फर्केर, रामले आफ्नो जीवनलाई पुनर्निर्माण गर्न थाले ।
नयाँ ज्ञानको साथ, रामले गाउँलेहरूसँग कुरा बाँडे साझा गरे उनीहरूलाई भ्रामक सपनाहरूको पछि नलाग्न अनुराेध गरे । उनी जीवनमा साँच्चै महत्त्वपूर्ण कुराको दृष्टि गुमाउनेहरूका लागि प्रेरणाको स्रोत बने । यसरी रामको यात्रा पूर्ण चक्रमा आयो । 

We are well aware of the concept of blackholes which has been around for about a century. Recently scientists have been talking about the twin of black hole ‘white hole’. We all know that a black holes are very terrifying and large objects lurking deep in the universe. The process of forming blackholes is quite fascinating. A star about 20x more massive than our sun. At the end of the star’s lifetime the star becomes unstable and its core collapses upon itself. Recently scientists have found something that could be a white hole.

The theory of the existence of white holes was first given by a German physicist and astronomer Carl Schwarzschild using Albert Einstein’s field equations. He stated that if blackholes can no longer evaporate they shrink and get transformed into a white hole. But, some scientists refuse to believe in this theory as it violates the second law of thermodynamics. We can never really know the reality and possibilities. Anything can happen all over the universe and we are simply not capable of knowing them all. White holes have been a very fascinating topic in science for a very long time. Although it is hypothetical, if it is somehow found to be a reality it can open the gates of the learning of the universe much easier. Many believe that blackholes and white holes are simply opposite sides of a coin. We know that energy can neither be created nor get destroyed, energy in the universe remains constant. We may also theorize that anything that goes through a blackhole does not vanish but rather gets ejected out by a white hole.

Some scientists even theorize that the big bang was actually just a white hole. We did not really have much evidence about the existence of a white hole until 2006. In 2006 a gamma outburst was detected by NASA which lasted about 102 seconds. The outburst was said to be caused by a supernova or a really big star. But, during further research the outburst was said not to be connected to any supernova or any star explosions. This event opened a whole new gate about the theories of the existence of white holes and how white holes could actually exist. The outburst was detected by NASA's Swift satellite. This gamma outburst event was termed as GRB 060614.  

Sometime ago white hole was just stated as a hypothetical twin of the black hole but now it has a chance to become a reality. Even with the gamma outburst of 2006 some scientists believe that it might not be a white hole. If not a white hole then what is it? Scientists and astronomers have been fascinated by it and are researching more and more about it and what it may be. If it actually is a white hole then we haven't seen much of the universe. It is still a vast and mysterious place with infinite possibilities. We have not even seen a tiny portion of it. Anything can happen all over the universe and we are simply not capable of knowing them all.
References: 
Curiosity guide 
Nature Communications

“You can’t feel this way towards your own family forever," a sharp voice interrupted Jamie’s thoughts. Jamie had been in the living room with her parents, watching the television. The television's sound was drowning as her parents' argument got louder. Even with earphones, her parents' screaming seeped through. She quickly rushed to her room, not wanting to face either one's anger. Just when she entered her room, she could hear her younger sister getting dragged into the argument by her parents. Jamie had no choice but to get involved so that her younger sister wouldn't face her parents' outrage.

This is what a normal day looked like in Jamie's house. Jamie couldn't wait for the day she would have the chance to leave her family behind. The only thing stopping her was the guilt of leaving behind her younger sister. Jamie felt nothing towards her family - she didn't hate them nor love them. She didn't even like or dislike them. She simply felt empty around her family. Jamie had imagined her family getting hurt countless times, and even when imagining that, she didn't feel anything.

Yet, Jamie's family wasn't bad. They were all good people. They did get into a lot of arguments, but all of these arguments were quickly resolved. Her family loved each other; they didn't hit each other, bully each other, or bring each other down. They were always motivating and encouraging each other. Even when being surrounded by such kind people, Jamie couldn't help but feel distant from her family.

At the age of 21, Jamie finally had the opportunity to leave her house. She hoped to find independence and start a new chapter in her life. She wished to be able to reciprocate the same love her family harbored for her. She realized it was essential to be away from her family as she needed to find a new side of herself before loving her family.

Jamie enrolled in college, and weeks passed, but she couldn't let go of the emptiness she felt. She didn't feel this way just towards her family; she felt the same for her friends. She couldn't like them, but she didn't hate them either. She didn't feel any form of immense happiness or sadness when she saw anyone. It was as if Jamie had no emotions for other people.

One day, Jamie met a girl named Maya. Their conversation flowed smoothly, and soon they became best friends. Maya was overflowing with love and happiness. She was easy to get along with. Maya had love not just for people around her but for herself as well. She was brimming with confidence; she was inspirational. Slowly but surely, Maya influenced Jamie. Before, Jamie couldn't see her own worth because she was so hung up on her fault of not being able to love others as much as they loved her. Maya taught Jamie to see herself in a new light, to recognize her own worth. As Jamie's confidence grew, she learned to accept her shortcomings and view them as opportunities for growth.

After 4 years, Jamie returned to her family. She was so immensely happy to see them. She truly cherished and loved them. She had always loved them, but due to her pessimistic personality, she made up flaws about herself as she could never see her true self-worth before Maya came along. Meeting her family after 4 long years was truly a happy moment for both Jamie and her family. They talked for a long time about nonsensical things, they laughed at silly movies, they made dinner together, and in the end, fell asleep together. This is what love is. Everyone loves someone and will continue to find people they love. The ability to look beyond one's own flaws and embrace others freely is what love is.

देशले हामीलाई आवास दिन्छ 
देशले हामीलाई मान दिन्छ
देशले हामीबाट कर लिन्छ 
बदलामा धुलाे धुँवा मन्द जहर दिन्छ ।

नेताहरूलाई हामी भाेट दिन्छाैँ 
उनीहरू हामीलाई चाेट दिन्छन् ।
देशले हामीलाई परिचय दिन्छ,
नेताहरू देशकाे सम्पति लिन्छन् ।

देशप्रति छ हामीलाई धेरै माया 
देशको हामीमाथि छ अपार छाया 
देशले जनताकाे सेवा गर भन्छ 
तर हाम्रा नेता आफ्नै सेवा गर्छन् ।

हामीले देशलाई कर तिर्छाैँ 
हाम्रा नेता त्यसैमाथि भर पर्छन् 
देशबाट जनतालाई हुन्छ आशा
हामीलाई नबनाऊ है निराशा ।

कुनै बेला नेपाल अहिलेकाे जापानभन्दा पनि  विकसित देश थियो रे । तर आज के कारणले हो कुनि यो देशमा केही छैन जस्तो देखिन्छ । म दैनिक यो देश छोडेर जाने मान्छेहरू देख्छु, हजारौँ मानिसहरू राहदानी बोकेर हरेक दिन नेपाल छोड्छन् । म पनि त्यही गर्न चाहन्छु, नेपालमा बस्नुको कुनै अर्थ छैन जस्तो लाग्छ मलाई । "अनिता, तल खान आइज। " म सोच्दै गर्दा आमाले बोलाउनु भयो ।
खाना खाने टेबलमा मेरी आमा, बुबा र म बसेका छौँ । बढ्दो महँगीबारे मेरा आमाबाबुको कुरा सुन्दा म चुपचाप छु । मलाई थाहा छ कि बढ्दो मूल्य दरले हाम्रो परिवारलाई असर गरिरहेको छ । मेरा आमाबुवाले मलाई आवश्यक पर्दा पनि नयाँ लुगा किन्न सक्नुभएको छैन । जहिले लुगा किन्नुहुन्छ, हामीले ३-४ महिनासम्म घरबाट केही खानेकुरा वा अन्य कुरा किन्न सक्दैनाैँ । यही कारणले गर्दा म कहिले पनि केही माग्दिनँ । कहिलेकाहीँ म चाहन्छु कि हामी धनी भएको भए हामीले हामीलाई चाहिने वा चाहेको सबै कुरा किन्न सक्थ्याैँ । मलाई थाहा छ यो लोभी हुनु, हो किनकि धेरै पैसा चाहनु लोभी हुनु हो ।
आज पनि मेरो बुबाले राजनीतिमा पैसा बर्बाद गरेको कारण मेरो आमाबाबुले झगडा भयो । उँहाले यी उच्च-पदमा भएकालाई खुसी पार्नु पर्छ, ताकि उनले राम्रो पद पाउन् । नेपालमा यी  नेताहरूको खुट्टा नछुने मानिसहरू भोकै बस्नुपर्छ । म मेरा ममीबाबा झगडा गरेको देखेर म थाकिसकेँ । इमानदारीपूर्वक भन्नुपर्दा नेपालमा केही पनि राम्रो छैन । हरेक दिन जब स्कुल जान्छु, बाटाेमा म एक ट्राफिक पुलिसले  कुनै गल्ती नगरेका गाडीहरू रोकेको देख्छु किनकि उसलाई उनीहरूकाे गल्ती देखाएर पैसा लिनु छ । उसले आफ्नो शक्तिको दुरूपयोग गर्दै छ । उसले नराम्रो मानिसहरूलाई छोडिदिन्छ तर केही गलत नगर्नेहरूलाई रोक्छ । सायद ऊ लोभी छ ।

अस्पतालमा पनि त्यहाँ काम गर्ने आफन्त र साथीभाइले पहिले उपचार गर्छन् भने पहिले पुगेकाले पर्खेर मात्रै बस्छन् । मलाई वास्तवमै त्यो मन पर्दैन, यदि मेरो स्वास्थ्य उनीहरूकोभन्दा बढी चिन्ताजनक थियो भने के हुन्छ ? तिनीहरूले वास्ता गर्दैनन् तिनीहरू केवल पहिले उपचार गर्न चाहन्छन् । के यो मानवता र इमानदारीपन  हो त ?
त्यस्तै गरी, सबै मानिसहरूलाई समान अवसर दिइँदैन । प्रतिभा नभएका तर पहुँच भएका व्यक्तिहरूले प्रायः जागिर पाउँछन् जबकि योग्य व्यक्तिहरू बेरोजगार हुन्छन् । नेपालमा गरिबीमा बाँचिरहेका धेरै मानिसहरू छन् किनभने उनीहरूले आफ्नो प्रतिभा देखाउने मौका पाएकै छैनन् । यहाँ धेरै व्यक्तिहरू छन्, जसले कामको क्षेत्र बर्बाद गर्दैछन् किनभने उनीहरूलाई त्यसको बारेमा कुनै ज्ञान छैन र उनीहरूले केवल जडानको कारणले काम पाएको हुन् । यसरी जागिर पाउने हो भने यति मिहिनेत गरेर पढ्नुको के अर्थ छ र ? अब समाधान के त ? म के गरूँ ?

Someday, I wish to lay rolling 
on a serene grass walking on by bare feet,

Embarking on an adventure to the dense forest
where I call my safe homeland,

The blue sky and the fresh smell softened
with the earthiness of wood and musk,

Living on top a tall castle,singing with the birds
where love flying above the pink cotton clouds,

A quite afternoon on a small patio garden
with butterflies on a long pathways shining of their lustrous wings,

Frilly floral peach pink dress with a small basket 
picking berries dancing among green grasses 
dotted with pretty white daisies,

I close my eye and everything turns golden
a bright shiny light leading me to surrealistic wildest fantasy of my own fairy tale,

Like the clockwork with one heart and one breathe 
i drift off to my comfort called 'HOME'

In a small town, there lived a girl named Vanessa. She was a bright and talented teenager with a passion for painting and a heart filled with kindness. However, Vanessa had a secret burden, she suffered from major insecurities about her appearance and abilities.

Vanessa's insecurities were born from comparing herself to others. She often felt inadequate, believing she could never measure up to her peers' achievements. In art class, she would hide her paintings, fearing they were not good enough to share. At school, she felt invisible and struggled to make friends a lot , thinking she was not interesting or  pretty enough.

One day, a new art teacher named Ms. Rachel joined the school. Ms. Rachel was unlike any teacher Vanessa had known before. She saw potential in every student and encouraged them to embrace their uniqueness. She believed that everyone was unique in their own way. Ms. Rachel noticed Vanessa's hesitations and insecurities and decided to help her overcome them. One day, Ms. Rachel sat with Vanessa and asked her to paint her feelings instead of her usual paintings. With a shaky hand, Vanessa started painting. As she painted, she started sharing her deepest insecurities and fears with Ms. Rachel. She listened attentively and offered words of wisdom. "Vanessa, you are a unique and talented artist. Your creations are astonishing and really mindful, and that's what makes them special. Comparing yourself to others only takes away from your own brilliance. Embrace your art and yourself with love and acceptance, and others will do the same," Ms. Rachel said gently. The conversation had a huge impact on Vanessa. She realized that her insecurities were holding her back from becoming the person she wanted to be. Determined to change, she decided to confront her fears head-on. She told herself that her fears will not be holding herself back anymore and that she won't miss any more opportunities. The next day, Vanessa mustered the courage to show her paintings during the art class. To her surprise, her classmates were genuinely impressed by her work. They admired the emotions she poured into her art and commended her for her unique style. This made Vanessa feel encouraged and she decided to take one more step towards self-acceptance. She joined a local community art exhibition, displaying her artwork for a broader audience. The positive feedback she received there boosted up her confidence further. The girl who had been shy her entire life had finally started accepting herself for who she was. As time passed, Vanessa's insecurities began to fade. She stopped comparing herself to others and focused on using her artistic skills. With the support of Ms. Rachel and newfound friends, Vanessa started to love herself and her art. She became more outgoing, making genuine connections with others. Vanessa started inspiring others with her mesmerizing artworks. As Vanessa continued to grow in her artistic journey, she learned a valuable lesson that would stay with her for the rest of her life. Acceptance became the key that unlocked the door to love and respect, not just for herself but also for others.

Vanessa realized that true happiness and fulfillment came from embracing her unique qualities and celebrating the diversity around her. She understood that everyone had their own struggles and insecurities, and it was through acceptance and understanding that genuine connections could be formed. With this newfound wisdom, Vanessa became an advocate for self-acceptance and kindness. She started sharing her story and encouraging others to embrace their individuality. Through her artwork and words, she inspired countless people to look beyond appearances and talents, and instead, to value the beauty and worth that resided within each person. At the end, Vanessa finally taught herself to appreciate the beauty in flaws and embrace imperfections.

सबै कुराकाे आफ्नै समय हुन्छ
समयले असल मानिस चुन्छ 
हामीले समयमै गर्नुपर्ने धेरै काम
खाेज्छ समयले असल ठाम ।

समयअनुसार सबै कुरा भिन्न हुने
बुझ्ने साथी नहुँदा सबै कुरा खिन्न हुने
भित्री मनकाे व्यथा नसुनाई कसलाई के थाह ?
बाँडे हल्का हुन्छ मनकाे व्यथा ।

समयअनुसार नै मानिस बदलिनुपर्ने
समय र परिस्थिति फेरिने निरन्तर
असल र खराब नछुट्याउन नसक्ने 
यही हाे, मानिस मानिस बिचकाे अन्तर ।

जसले राम्राे व्यवहार र काम 
उसकाे भर सबै परे एक ठाम
सकेसम्म सबैलाई गर्नू सहयाेग
नपाएमा अधिकार आफैँ खाेस्नू
खराब जति सबै छाडी असल कर्म राेज्नू ।

सानी माया,सानी नानी,
गर्छे ठुलो कुराकानी ।

सानी माया सानी नानी,
घृणा गर्छे ठुलाको आनीबानी।

सानी माया सानी नानी ज्ञानी
विद्यार्थी जस्तै दुई चुल्ठी कपाल बानी।

सनी माया,सानी नानी,
झोला भनी ,डोको डालाे लानी।

सानी माया ,सानी नानी,
सानो हातमा,हँसिया लानी।

सानी माया,सानी नानी,
खेतमा हाेइन, पढ्न स्कुल जानी ।

Beauty standard is the form of standard where specific shape, size is considered beautiful. Round big eyes, beautiful luscious lips, slim nose and a perfect model like body shape is known to be the beauty standard. These standards have an impact on teenagers.

Teenagers who are easily influenced by others be it in any case especially when it is about beauty. We care about beauty more in this period and how to present yourself attractive in front of others. When one looks at the standard the society created for us to follow we don't feel good about it. We never think about breaking the standard ourselves and presenting who we are but we work really hard to fit in that standard, even though it might be unrealistic. Not an easy topic but it really causes mental stress and ruins the mental health of many teenagers. Especially after lockdown they have stopped being secure and are seen wearing hoodies during summer, masks everywhere and rarely showing their face. As we all use social media, it is the main source where we get ideas about the typical beauty standard and we are so into it thinking we can do our best to fit in it.

People take it really lightly especially shaming teenagers about their body not caring about how they feel. They say it easily not knowing how typical they sound and how low they make one feel. We all should stop shaming others on how they look and ruining their confidence. We can see many secure ones being insecure by comments others make about them. We do have someone to admire especially idols we follow and we find them beautiful but never see ourselves from others perspective.  As we all have accepted that standard as the beauty standard we never think about changing it and breaking it. There are many celebrities who broke the typical standard and are being themself around the world and trying to spread positivity but we never care about it, we still care about fitting in into the typical beauty standards.

We should think about it once. Why are we pressuring ourselves? When we can be ourselves and find beauty in ourselves. Even though being a teenager is the period when we try to present ourselves as beautiful in front of others, still we should think about prioritizing ourselves too. We should always be enough for ourselves as the beauty standards are ever changing. Instead of focusing on the exterior beauty, what about our internal beauty? The way we treat others, the way we are respectful, empathetic, this is what truly makes us beautiful. These are the standards we should be setting for all. You will realize how others' opinions don't really matter. It matters when you care about it but when you stop caring about it and start focusing on yourself you won't care less about anything else. We cannot be insecure forever right, we do have a life to live after this period. It's a chance to make it better now for the future. 

Nature created our globe, as well as all living creatures such as animals, birds, insects, trees, and plants. Everyone has the right to spend their life as they like, yet human beings are the most puzzling of all living beings. We people are murdering nature for our selfish desires and greed, and we shall pay the price in the form of disasters. 

Long Effect of Global Warming:
As carbon dioxide (CO2) and other pollutants and greenhouse gases accumulate in the atmosphere, they absorb sunlight and solar energy that has reflected off the earth's surface, causing global warming. Normally, this radiation would disperse into space, but impurities that may persist in the atmosphere for years or decades retain the heat and cause the planet to warm. Hence, the greenhouse effect occurs. 

Natural Causes of Global Warming:
The world has been changing for decades. The sun's natural rotation affects global warming by altering the intensity of sunlight and bringing it closer to the Earth. Greenhouse gas emissions are another source of global warming. Greenhouse gases such as carbon monoxide and sulphur dioxide capture solar heat rays and prevents them from exiting the earth's surface. As a result, the Earth's temperature has been rising. Volcanic eruptions are another component that adds to global warming. A single volcanic eruption can emit large amounts of carbon dioxide and ash into the atmosphere. The Earth's temperature rises as carbon dioxide levels rise, and greenhouse gases absorb solar energy.
Methane is a greenhouse gas that contributes to global warming. It traps heat in the atmosphere 20 times more effectively than carbon dioxide. It is commonly employed in a range of applications. Among the many examples are cattle, landfills, natural gas, petroleum systems, coal mining, mobile explosions, and industrial waste operations.

Human Influences on Global Warming:
Humans are to blame for global warming more than natural reasons. The planet has been developing for many years and continues to do so as a result of current human lifestyles. Human activities include industrial production, fossil fuel consumption, mining, livestock husbandry, and deforestation. The first is the industrial revolution. Fossil fuels have been used to power industrial machines. Everything we consume is composed of fossil fuels. When we buy a mobile phone, for example, the manufacturing process requires machinery that runs on fossil fuels, and carbon dioxide is emitted into the atmosphere. Aside from industry, transportation releases carbon dioxide through emissions, such as vehicles. Deforestation, by far the most prevalent issue. Humans have been chopping down trees for centuries to make documents, timber, and houses, among other things.

Effects of Global Warming:
Every year, scientists learn more about the effects of global warming, and they all agree that if present trends continue, there will be environmental, economic, and health consequences. Here's a glimpse of what we may look forward to in the coming months:

Melting glaciers, early snowmelt, and severe droughts would exacerbate water scarcity in the American West, increasing the danger of wildfires. Coastal flooding is expected throughout the East Coast, particularly in Florida, as well as in other locations such as the Gulf of Mexico. New pests, as well as heat waves, torrential rains, and increasing flooding, will wreak havoc on forests, agriculture, and cities.
 

Many plant and animal species may become extinct if habitats like coral reefs and Alpine meadows are damaged. Increased pollen-producing ragweed growth, increased levels of air pollution, and the development of pathogen and mosquito-friendly circumstances will increase the likelihood of allergy, asthma, and infectious disease epidemics.
 

Reference:
https://www.coursehero.com/file/179604168/Document4-2docx/

भौतिक विज्ञान भनेको विज्ञानकाे एक विशाल शाखा हो । भौतिक विज्ञानलाई विभिन्न तरिकाले मानिसहरूले परिभाषा गरेका छन् । केही विद्वानहरूकाअनुसार यो ऊर्जा विषयक विज्ञान हो र यसमा ऊर्जाको रूपान्तरण तथा त्यसको द्रव्य सम्बन्धहरूको विवेचना गरिन्छ । यसमा प्रकृति जगत् र त्यस सम्बन्धी अन्य कुराहरूकाे अध्ययन गरिन्छ । जसमा स्थान, गति, विद्युत, प्रकाश, ध्वनि इत्यादि अनेक विषयहरू यसको परिधिमा आउँछन् । यो विज्ञानको एक प्रमुख विभाग हो । यसका सिद्धान्त सम्पूर्ण विज्ञानमा आधारित छन् र विज्ञानका प्रत्येक अङ्गमा लागु हुन्छन् । यसको क्षेत्र विस्तृत छ र यसको सीमा निर्धारित गर्नु अति गाह्रो कार्य हो । 
विज्ञानका अन्य शाखाहरू भौतिक विज्ञानमा आधारित छन्, अथवा यिनका तथ्यहरूलाई यसका मूल सिद्धान्तहरूसँग सम्बद्ध गर्ने प्रयत्न गरिन्छ । विज्ञानका क्षेत्रमा अगणनीय शास्त्रहरू छन् । तीमध्ये रासायनिक विज्ञान, जीवविज्ञान आदि यसका प्रकारहरू हुन् । ती विज्ञानका प्रकारमध्ये भौतिक विज्ञान पनि एक हो । यो विज्ञानको एक अनुपम शास्त्र हो । यसले ब्राह्मण्डको सबै कुराहरूबारे जानकारी दिन्छ । गणित र भौतिकविज्ञान एकआपसमा अन्योन्याश्रित छन् । ब्रह्माण्डको सारा कार्यकलापबारे जानकारी भौतिकविज्ञानले दिन्छ । भने त्यसको प्रमाणिकरण गणितले गर्छ । गणितको अनुपस्थितिमा भौतिक शास्त्रकाे कल्पना पनि गर्न सकिँदैन ।
विज्ञानका विविध शास्त्र एवम् प्रकारहरू भए जसरी भौतिकशास्त्रभित्र पनि विभिन्न प्रकारहरू पाइन्छन् । मेकानिक्स्, थर्माेडाइनामिक्स्, विद्युत, आधुनिक भौतिकी आदि यसका प्रकारहरू हुन् । यीमध्ये सबैभन्दा कठिन शास्त्र भनेको क्वान्टम भौतिकी हो । आकाशगङ्गा, ब्ल्याकहोल, ग्यालेक्सी र विविध ग्रह, नक्षत्र इत्यादिको खोजमा क्वान्टम भौतिकीको महत्त्वपूर्ण योगदान छ । मेकानिक्स भन्नाले त्रिभुज, वृत्त, कोण, आदिको अध्ययनलाई बुझिन्छ । यसमा न्युटनका नियम, चतुर्भुजका प्रकारहरू इत्यादि पर्छन् । भाैतिक शास्त्रका क्षेत्रमा सर आइज्याक न्युटन, अल्वर्ट आइन्स्टाइन आदि वैज्ञानिकहरूको महत्त्वपूर्ण योगदान रहेको छ ।
थर्माेडाइनामिक्स् भन्नाले ताप र तापक्रमसँग सम्बन्धित विषयको अध्ययन हो । यसमा ताप र तापक्रमको अन्तरसम्बन्ध दर्साइएको हुन्छ र यिनीहरूबिच हुने रासायनिक प्रतिक्रिया पनि देखाइएको छ । केल्भिन, फरेन्हाइट आदि यसैकाे अध्ययनका उपज हुन् । विद्युतीय भौतिकीमा विद्युत्, करेन्ट आदिको व्याख्या गरिएको छ । माइकल फराडे, ओम जस्ता वैज्ञानिकहरूले महत्त्वपूर्ण याेगदान दिएका छन् ।