Introduction to Special Theory of Relativity of Einstein

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From 58 C$ /h

I teach university-level Physics, covering various topics such as Classical Mechanics, Quantum Mechanics, Electromagnetism, Einstein's Theory of Relativity (Special and General), Wave Physics, Spectroscopy, and Astrophysics, etc. I have created predefined packages that you can request online.
You now have two packages available: the Twin Paradox Package and the Famous Formula E=mc² Package. With these, by learning basic university mathematics, you can learn about Einstein's Special Theory of Relativity, the phenomena of the Twin Paradox and aging (as you may know from the movie "Interstellar"), as well as Einstein's famous formula: E=mc².
These packages are in English.

Extra information

Just relax and enjoy the course.

Location

Online from Netherlands

About Me

I have a PhD in Physics, and I am able to teach all the syllabus of University Physics, Beginner ,Intermediate and Advanced.
I make subject oriented prepared packages, for example understanding modern concepts of Physics like relativity of time and relativity of length and different aging phenomena, which are the results Special Theory of Relativity, and I teach in simple language, try to bring a hope for majority of people to learn modern Physics.
I also can teach University syllabus of Physics for deep understanding and/or preparation for exams.

Education

5 years of teaching University Physics and Labs, A year as a Freelancer prof. and four years at University, Spending almost two years in Europe doing research about the subject of my PhD thesis

Experience / Qualifications

PhD in Physics (Thesis: Gauge Invariance in Renormalization Group Flows; Tehran), M.Sc in Astrophysics (Thesis: Thermodynamics of Horava-Lifshitz Black-Holes; Shiraz), B.Sc in Physics (Thesis: Premordial cosmological nucleus Synthesis; Shiraz)
Postdocs in Germany and Italy (Subject of research: Preserving Gauge Symmetry in Renormalization Group Flows)

2 published Scientific article in PRD (Physics Review D).

Age

Adults (18-64 years old)

Seniors (65+ years old)

Student level

Intermediate

Advanced

Duration

60 minutes

120 minutes

The class is taught in

English

Spanish

Persian

Skills

Physics

Physical education

Availability of a typical week

(GMT -04:00)

New York

Online via webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Reza

4.64

(25)

I hold a PhD in Mechanical Engineering and currently work as a post-doctoral researcher in the Aerospace Engineering Faculty at TU Delft (Delft University of Technology).

My extensive teaching experience covers a wide range of engineering courses, including:

- Mathematics: algebra, linear algebra, probability, calculus, differential equations, intellectual math, and advanced engineering mathematics.

- Mechanical Engineering: Statics, Dynamics, Mechanics of materials, Mechanical design, control, vibration, Fluid Mechanics, Thermodynamics, Heat transfer, Engineering drawing, Applied Mechanics, Composite Structures, Flight, Machine Elements, Manufacturing, 3D printing, and more.

- Physics: mechanics, momentum and energy, electricity, charge and current, electric and magnetic fields, waves, particle physics, nuclear decay, astrophysics, cosmology, oscillations, etc.

- CAD/CAM Software: Autocad, Solidworks.

- Mechanical Design Packages: ANSYS, APDL programming, ABAQUS, MATLAB, Symbolic MATLAB, LS-DYNA.

My research and teaching interests are diverse, including:
• Additive manufacturing
• Mechanical metamaterials
• Acoustical metamaterials
• Electromagnetic metamaterials
• Aeroacoustics
• Soft matter and soft robotics
• Fatigue and fracture mechanics
• Experimental mechanics
• Multiscale numerical modelling
• Biomaterials
• Porous materials
• Manufacturing of medical devices and implants
• Deep learning
• Image processing
• Topology optimization
• Origami and Kirigami structures
• Self-folding and self-assembly structures
• Tissue engineering
• Permeability in porous materials
• Fluid-Solid Interaction

I understand that not all teachers excel in teaching Engineering and Mathematics courses and explaining their importance to students. Courses with strong mathematical backgrounds may become boring for students who lack a solid mathematical basis. To address this, I take a student-centered approach, starting from the basics to actively engage all students, including those with weaker mathematical backgrounds. I also provide practical examples to demonstrate the real-world significance of what they are learning, inspiring and fostering their interest in the subject matter.

If you have any additional questions before starting a class, please feel free to ask me. I am here to assist! :)

Raef

4.64

(25)

The math, physics, chemistry, and SVT courses of the Swiss Maturity and Gymnasium program or French programs are given by either in-depth explanations or by a quick course and summary of essential needs according to the case of each student supported by exercises from the book or evaluations and exams from other high schools.
Special program for Maturité and Terminale students.
As well as (International and European Schools in English).
The same goes for the start of the ECUS and EPSU academic year where the pupil can follow a complete preparation.
As well as for 1st and 2nd-year university students, can take courses in Analysis - Matrices - Statistics - Algebra - Geometry - Physics - Mechanics - Electricity - Chemistry - Organic Chemistry - Biology and Geology.
My experience is too long and for years I have learned methods for each case and for each student to fill in their gaps with the best results of Excellent, Very Good, and Good as mentioned by my students.
I can also help students to better prepare for courses and support them to better prepare for the duties of CNED in science subjects.
Guaranteed response within minutes up to 10 hours maximum.

Mavi

4.64

(25)

I am Mavi, a physics engineer working at an aerospace company.
I have been teaching private lessons at the primary, secondary, high school, and university preparatory levels for 11 years. I teach mathematics, physics, chemistry, and science. I have a good command of the curricula of IB, IGCSE, American, Hong Kong, and international schools.

Additionally, I hold the position of president at the Astronomy Society, where I foster my students' interest in astronomy and science beyond the lessons. I prepare the learning environment by incorporating experiments and exploration, moving away from rote education. I often bring experimental materials to class, aiming to make learning memorable through hands-on experiments.

As an educational mentor, I approach my students as if they were my siblings, valuing creativity. I have a deep passion for mathematics, physics, and science. I am dedicated to helping students understand and learn because life encompasses both SCIENCE and ART. The more people I can inspire to know, understand, and love mathematics, physics, and chemistry, the more proud I am.

Are you curious about how nature works?

Let's explore together!

David

4.64

(25)

I am a Math and Physics tutor with over 10 years of experience, backed by an MIT background and training from top technical schools. My lessons are unmatched, blending charisma, passion, and innovative teaching methods to create a magical learning experience. I focus on highly personalized, one-on-one sessions, understanding each student’s unique mindset to unlock their full potential.

Teaching is my true passion! I genuinely enjoy sharing my knowledge and skills with those in need. My friendly and supportive attitude allows me to establish a connection with every student right from the first lesson. So, if you're feeling demotivated and down, don't worry! I'm here to help you find the motivation you need for both academic and personal success.

If you have any questions, please feel free to contact me anytime here. I will respond to you as soon as possible!

Jeremy

4.64

(25)

Passionate & empathetic teacher. I have a Master's in Physics with honors from the University of Leicester (which was featured at the time as a top 5 Physics university in the UK by The Guardian) and a - french - European School diploma in which I achieved 90% in Physics and 85% in Maths.

Helping others understand difficult topics and skills is something that I am very passionate about as an empathetic person. I have 5 years of experience teaching Physics and Maths to kids from unprivileged backgrounds both in a homework schools as well as via private teaching.

In my classes, I aim to:

- help students achieve better grades in exams/tests in all branches of Physics & Maths
- clearly explain and break down topics
- give context and or example applications of topics (to improve understanding and memorization)
- help with ADHD & other learning disabilities
- give practical advice for university applications (eg. UCAS in the UK) and discuss the exciting Physics research/work and projects you can work on later in life.

Physics has a plethora of useful and fascinating applications, from the detection of Gravitational Waves and Gamma-Ray Bursts to the development of novel Medical Imaging techniques and Nano-technology (eg: smartphones). It is a subject that I am very passionate about and I hope to make use of my years of experience and extensive knowledge to help you understand and love the subject! My lessons will always be tailored to the individual needs of the student, so please do not hesitate to contact me if you have questions!

Rania

4.64

(25)

many people face problems while studying scientific subjects , so if you one of them and you need a small or big help , I am here to help you to face any obstacle you may have in the matter.
I am a medical student at the medecine school of tunis.
science has always been a passion of mine.
so I intend to make a personalised plan to each student according to his difficulties and help him overcome them step by step .

Enrique

4.64

(25)

Don't settle for anything less than excellence.
I am an Aerospace Engineer with a Master's degree in Quantum Physics and have completed Ph.D. work at the University of Cambridge in Computational Physics. Additionally, I have 4 years of experience developing MATLAB and possess deep programming skills in MATLAB/Simulink family, C/C++, Fortran, and Python.

With over 12 years of tutoring experience, I have successfully guided more than 50 students worldwide to achieve distinction in various fields. Consistent results are my priority, and I strive for excellence in all aspects of my teaching.

My lessons are customized to meet each student's unique needs and are designed to be engaging and insightful.

Whether you are at a school level or require advanced or professional-level instruction, I offer support in the following areas:
- Preparation for IB/IA, A-Levels, GCSE, University Entry, or equivalent.
- Experience in preparing students to access world-class schools and universities, including Cambridge University, Oxford, Ivy League and other top institutions in the UK and US.
- University levels (undergraduate and postgraduate).
- High school studies and diploma programs.
- Assistance with specific projects at a professional level, including job interview preparation.
- Extensive experience working with children.

Every lesson is meticulously planned in advance to ensure that it aligns with your goals and targets areas for improvement.
I prioritize a dynamic and interactive learning experience, with one-on-one sessions tailored to your individual requirements. Lessons will be conducted via webcam, enabling you to connect from anywhere.

I have a highly flexible schedule and can adapt to accommodate your needs.
If you have any questions about my teaching method, availability, or pricing, please don't hesitate to reach out. I am here to assist you and provide the support you need.

Chiwila

4.64

(25)

As a dedicated tutor with extensive experience in preparing students for standardized exams such as the SAT, GMAT, and SSAT, I understand the unique challenges that each of these tests presents. My approach is comprehensive and focuses on building a strong foundation in critical areas such as Mathematics, Quantitative Reasoning, Verbal Skills, and Analytical Writing. Each program I develop is tailored to the specific requirements of the exam, ensuring that students are well-prepared and confident on test day.

Having a deep understanding of the test formats and question types allows me to provide personalized strategies that target each student's individual strengths and weaknesses. I believe that every student has a unique learning style, and my goal is to enhance their test-taking skills while improving their time management. By fostering a supportive learning environment, I aim to boost students' confidence and empower them to achieve top scores.

My tutoring sessions incorporate a variety of effective methods, including real exam questions and timed practice tests. This hands-on approach allows students to familiarize themselves with the types of questions they will encounter, making the actual exam feel less daunting. I teach proven techniques for tackling even the most challenging problems, ensuring that students feel equipped to handle any question that comes their way.

One of the key components of my tutoring is helping students develop effective study habits. I provide guidance on creating a structured study plan that maximizes their preparation time and aligns with their personal goals. This structured approach not only keeps students on track but also helps them build a sense of accountability, which is crucial for success.

In addition to academic preparation, I also focus on the psychological aspects of test-taking. Many students experience anxiety leading up to exams, which can affect their performance. I teach relaxation techniques and mental strategies to help manage stress, allowing students to approach their exams with a calm and focused mindset. By addressing both the academic and emotional challenges of test preparation, I equip students with a well-rounded toolkit for success.

Feedback is an essential part of the learning process, and I make it a priority to provide constructive and actionable insights during our sessions. After each practice test, I conduct a thorough review of the results, highlighting areas for improvement while also acknowledging progress. This continuous feedback loop helps students understand their growth and keeps them motivated throughout their preparation.

My commitment to student success goes beyond just teaching content. I aim to inspire a love for learning and self-improvement in each of my students. Many of my former students have gone on to achieve their academic goals, securing places at prestigious universities and programs. Their success stories are a testament to the effectiveness of my tailored approach and the dedication I bring to each tutoring session.

If you're looking to master the SAT, GMAT, or SSAT with confidence, I invite you to book a session now. Together, we will develop a customized learning plan that suits your individual needs, ensuring that you are not only prepared to face the test but also equipped to excel and reach your highest potential. With my guidance and your commitment, we can achieve outstanding results. Let’s embark on this journey to success together!

Georgio

4.64

(25)

FRENCH longer...

Dear parents, Dear students,

I am writing to express my enthusiasm and commitment to providing private tutoring services in mathematics, physics, chemistry, and science across various levels and educational systems. With a deep passion for these subjects and a dedicated approach to education, my goal is to inspire and guide students toward a deeper understanding and appreciation of these fundamental disciplines.

My long and extensive background in private tutoring has given me a deep understanding and skill in effectively imparting knowledge to students with diverse learning abilities.

Through my tutoring efforts, I strive not only to elucidate complex concepts but also to instill problem-solving skills, critical thinking, and a curiosity-driven approach to learning. I tailor my teaching methodologies to individual learning styles, ensuring that each student achieves a thorough mastery of the subject matter and gains confidence in their academic pursuits.

Additionally, my experience extends beyond classroom teaching. I believe in creating a stimulating environment where students feel empowered to ask questions, participate in discussions, and explore the wonders of science and mathematics.

My ultimate goal as a tutor is to inspire a genuine passion for these subjects while helping students achieve their academic goals. I am committed to providing comprehensive support, personalized guidance, and a rewarding educational experience to every student I work with.

I am confident that my dedication, expertise, and ability to inspire learning will make a significant difference in my students' educational journey. I look forward to the opportunity to contribute to the academic success of those I teach.

I am excited about the prospect of working with students and making a positive impact through private tutoring.

Regards,
Georgio

FRENCH

Dear parents, Dear students,

I am writing to express my enthusiasm and commitment to providing private tutoring services in mathematics, physics, chemistry, and science, spanning various levels and educational systems. With a deep passion for these subjects and a dedicated approach to education, my goal is to inspire and guide students toward a deep understanding and appreciation of these fundamental disciplines.

My long and extensive background in private tutoring has given me a deep understanding and mastery of effectively imparting knowledge to students with diverse learning abilities.

Through my tutoring efforts, I strive not only to explain complex concepts but also to instill problem-solving skills, critical thinking, and a curiosity-based approach to learning. I customize my teaching methods to match individual learning styles, ensuring that each student fully grasps the material and gains confidence in their studies.

Furthermore, my experience extends beyond classroom teaching. I believe in creating a caring environment where students feel encouraged to ask questions, participate in discussions, and explore the wonders of science and mathematics.

My ultimate goal as a tutor is to inspire a passion for these subjects while genuinely helping students achieve their academic goals. I am committed to providing comprehensive support, personalized guidance, and a rewarding educational experience to every student I work with.

I am confident that my dedication, expertise, and ability to inspire learning will make a significant difference in my students' educational journey. I look forward to contributing to the academic success of those I teach.

I am excited to work with students and make a positive difference through private tutoring.

Regards,
Georgio

Stephen

4.64

(25)

Welcome to my profile.
I am an experienced mathematics and science teacher with over seven years of experience helping students strengthen their understanding, improve their results and become more confident, independent learners.
My lessons are designed for students and families who value high-quality, well-prepared and personalised teaching. Rather than offering a one-size-fits-all course, I adapt each lesson to the student’s level, objectives, school programme and learning style.
I teach students who need to rebuild essential foundations as well as those working on advanced topics, examinations or demanding international programmes such as the European Baccalaureate and International Baccalaureate, as well as, the various Belgian programs.

◆ MY TEACHING APPROACH ◆

• • Initial assessment • •
We begin by identifying the student’s current level, strengths, difficulties and academic objectives.

• • Personalised lesson planning • •
Each student receives a structured learning approach based on their specific needs, curriculum and pace of progress.

• • Clear and accessible explanations • •
Complex concepts are broken down into logical, manageable steps, with visual representations and carefully selected examples.

• • Active problem-solving • •
Students are encouraged to think, explain their reasoning and develop reliable methods for approaching unfamiliar questions.

• • Targeted practice • •
Exercises are selected to address specific weaknesses, consolidate knowledge and prepare effectively for tests and examinations.

• • Regular review and feedback • •
Previously studied material is revisited when necessary, and clear feedback is provided to help the student understand what has improved and what still requires attention.

◆ WHAT YOU CAN EXPECT ◆

Professionalism and reliability are central to my work:
• • Lessons prepared in advance and tailored to the student
• • Punctual and well-structured sessions
• • Patient, respectful and focused teaching
• • Clear explanations without unnecessary complication
• • Constructive and timely feedback
• • Adaptation based on the student’s progress
• • A serious learning environment that remains supportive and encouraging

My objective is not simply to help students complete exercises. I aim to help them understand the underlying concepts, develop stronger reasoning skills and gain the confidence required to work more independently.

Mathematics and science can appear difficult when important foundations are missing or when explanations are poorly adapted to the learner. With the right structure, guidance and practice, these subjects become far more logical, accessible and rewarding.

Renzo

4.64

(25)

Hi! I'm Renzo, a Ph.D. in Mathematics with extensive teaching experience. My goal isn't just to help you pass your exams, but to change how you see math and physics so you can truly understand them instead of viewing them as the enemy.

I adapt to each student's pace, from primary school to university levels (science and engineering majors). How can I help you?

📝 Continuous Reinforcement & Homework: Weekly tracking so you never fall behind.
🎯 Exam Preparation: Targeted strategies to approach your tests with confidence.
⚙️ Advanced Mathematics: Algebra, Calculus, Theoretical Physics, and support for engineering courses.

Classes available in Spanish and English, both online and in-person in Tokyo.

Inês

4.64

(25)

If you're starting your A-levels next year and want to make sure your IGCSE foundation is strong, this is the class for you!

I offer clear, structured tutoring in Mathematics, Chemistry, and Physics, supporting students to ensure they have mastered the International GCSE topics necessary for Advanced Subsidiary and Advanced Levels (AS and A-Level), for both Edexcel and Cambridge. My lessons focus on clear explanations and the core ideas behind each topic, so things actually make sense.

Kevin

4.64

(25)

Swiss-Focused Mathematics, Physics & Chemistry Tutoring – Passerelle, BMS, Berufsmaturität, Matura, Fachmaturität, QV & Adult Education

This class is designed for students and adult learners in Switzerland who want serious, structured and exam-focused support in Mathematics, Physics and Chemistry. The main focus is preparation for Passerelle, BMS, Berufsmaturität, Matura, Fachmaturität and QV/final apprenticeship exams, as well as support for learners in adult education who are returning to study, changing career direction or preparing for a new academic path.

What makes my tutoring different is the strong connection to the Swiss education system. I completed my master’s degree at a University of Applied Sciences in Switzerland and have many years of experience teaching students in Switzerland. This means my lessons are not generic international tutoring. They are built around Swiss school expectations, Swiss exam styles, Swiss curricula and the specific challenges faced by learners in Switzerland.

➜ Special focus on Passerelle preparation
The Passerelle is one of the most demanding Swiss pathways because it requires strong discipline, independent thinking and solid exam technique. I help students prepare systematically in Mathematics, Physics and Chemistry by working through the required theory, typical task types, old exams and exam-style practice.

➜ BMS and Berufsmaturität support
For BMS and Berufsmaturität students, I provide structured help in Mathematics, Physics and Chemistry, depending on the programme and exam requirements. We focus on building strong foundations, closing gaps and applying methods correctly in exam situations.

➜ Matura and Fachmaturität preparation
I support students preparing for Matura and Fachmaturität exams with clear explanations, relevant exercises and a structured learning plan. The lessons help students understand difficult topics, organize their knowledge and gain confidence before important assessments.

➜ QV / final apprenticeship exam preparation
Many vocational students need Mathematics, Physics or Chemistry for their QV/final apprenticeship exams, especially in technical, scientific, laboratory, healthcare or engineering-related fields. I help students connect theory with practical calculations and exam-style tasks.

➜ Adult education and returning learners
I also work with adult learners who are returning to education after a break, preparing for Passerelle, Berufsmaturität, Fachmaturität, QV or further studies. Adult learners often need a clear, respectful and efficient teaching style. I explain from the foundation upward, without judgment, and help rebuild confidence step by step.

➜ Mathematics, Physics and Chemistry taught with equal seriousness
The focus is not only Mathematics. Physics and Chemistry are also important, especially for Passerelle, Matura, Fachmaturität, technical BMS directions, QV exams and later studies. I explain formulas, concepts and calculations clearly so students understand the logic behind the subject.

➜ Old exams and Swiss-style practice
Where suitable, I use old exams, typical Swiss exam questions and realistic practice material. Students learn how questions are asked, how to recognize the correct method, how to structure their solutions and how to avoid common mistakes.

➜ Clear step-by-step method
Every task is approached with a simple structure: What is given? What is required? Which formula, law or method is suitable? Why does it apply? Then we solve the task step by step with all formulas, calculations and explanations.

➜ Why choose a Swiss-focused tutor?
Many tutors may know Mathematics, Physics or Chemistry, but Swiss exams often have their own wording, structure and expectations. Because I studied in Switzerland and have taught Swiss students for years, I can prepare learners in a much more targeted and relevant way.

➜ For serious students who want real progress
This class is ideal for students and adult learners who want to pass an important exam, improve their grades, close knowledge gaps, prepare for further studies or gain more confidence in Mathematics, Physics and Chemistry.

➜ Success-oriented preparation
My goal is to help students build real understanding, not just short-term memorization. With clear explanations, structured practice, old exam material and consistent preparation, students can develop the confidence and exam technique needed to perform at their best.

Oyetayo

4.64

(25)

Are you looking to improve your understanding of Mathematics, Physics, or Chemistry? I offer engaging and personalized online and in-person lessons designed to help students excel in school
My teaching style focuses on simplifying difficult concepts, building confidence, and improving problem-solving skills. Every lesson is interactive, with clear explanations, worked examples, and practice questions tailored to each student's needs.
Whether you need help catching up in class, preparing for exams, or achieving top grades, I am committed to helping you reach your academic goals.

Aalam

4.64

(25)

I am a Mathematics graduate currently pursuing my Master's degree in Mathematics at the University of Groningen. With over two years of tutoring experience, I help students build a solid understanding of mathematical concepts at all levels, from high school fundamentals to university-level courses.

I specialise in Calculus, Linear Algebra, and Statistics, and my approach focuses on developing intuition and problem-solving skills, not just drilling procedures. Whether you're struggling with a specific topic or looking to get ahead, I tailor sessions to your needs and pace.