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Mercury Thermometer

Mercury Thermometers

Temperature is something we all feel intuitively—hot or cold—but measuring it precisely requires a scientific approach. We'll break this down ...
Simple Harmonic Motion

Simple Harmonic Motion

Long ago, in the early 1600s, a curious scientist named Galileo Galilei made an unusual observation inside a large cathedral ...
Potential Energy of A Spring

Potential Energy of A Spring

The story of springs and their potential energy is a fascinating one that stretches back centuries. Before we had the ...
Magnetization and Magnetic Intensity

Magnetization and Magnetic Intensity

The story of magnetism begins with an ancient and naturally occurring mineral called lodestone. This special rock had the mysterious ...
Kirchhoff's Law

Kirchhoff’s Law

In the mid-19th century, a brilliant German physicist named Gustav Robert Kirchhoff made a significant discovery that would become a ...

Basic Properties of Electric Charge

Long before the term 'electricity' was coined, ancient civilizations noticed strange forces at play. The Greeks, for example, found that ...

Combination of Cells in Series and Parallel

In 1800, Italian physicist Alessandro Volta created the first practical chemical cell, known as the voltaic pile. This groundbreaking invention ...
Nuclear Fusion

Nuclear Fusion

The journey into the history of nuclear fusion starts in the early 20th century. Scientists were curious about how stars, ...
Nuclear Fission

Nuclear Fission

The discovery of nuclear fission marked a significant milestone in atomic physics. It all began on December 19, 1938, in ...
Beta Decay

Beta Decay

The discovery of beta decay traces back to the late 19th century. In 1899, Ernest Rutherford, a pioneering physicist in ...

Alpha Decay

Alpha decay was first discovered by Ernest Rutherford in the early 20th century. While studying radioactivity, he found that certain ...
Structure of Nucleus

Structure of Nucleus

The journey into the heart of the atom began with Ernest Rutherford. In 1911, he proposed the nuclear model of ...
Radioactivity

Radioactivity

The discovery of radioactivity was a serendipitous event that marked a significant milestone in the field of physics. It all ...
Atomic Mass and Composition of Nucleus

Atomic Mass and Composition of Nucleus

The idea of atoms as the fundamental building blocks of matter dates back to ancient Greece, but it wasn't until ...
Bohr Model of Hydrogen Atom

Bohr Model of Hydrogen Atom

Before Bohr, there was a quest to understand the atom's structure. In 1897, J.J. Thomson discovered the electron and proposed ...
Atomic Spectra

Atomic Spectra

The story of atomic spectra began long before the term was even coined. It's a tale of curiosity and discovery ...
Rutherford’s Alpha Scattering Experiment

Rutherfords Alpha Scattering Experiment

Before Rutherford's experiment, the atom was thought to be a 'plum pudding'—a blob of positive charge with electrons dotted within, ...
Davisson Germer Experiment

Davisson Germer Experiment

In the early 20th century, the nature of light was a hot topic. Scientists knew it behaved like a wave, ...
Wave Nature of Matter And De Broglie’s Equation

Wave Nature of Matter

The story begins in the early 20th century. Scientists were exploring the nature of light and matter. They discovered that ...
Photoelectric Effect

Photoelectric Effect

The story of the photoelectric effect begins in the late 19th century. In 1887, Heinrich Hertz discovered that ultraviolet light ...
Electron Emission

Electron Emission

Electron emission is a phenomenon that has intrigued scientists for over a century. It's like a detective story that began ...
Polarization of Light

Polarization Of Light

The story of light polarization is quite fascinating and begins in the 17th century. It was a time of great ...
Diffraction of Light

Diffraction of Light

The story of diffraction begins in the 17th century with an Italian scientist named Francesco Maria Grimaldi. He was the ...
Young’s Double Slit Experiment

Young’s Double Slit Experiment

The story of Young's Double Slit Experiment begins in the early 19th century with a physicist named Thomas Young. At ...
Coherent And Incoherent Addition of Waves

Coherent And Incoherent Addition of Waves

The journey into understanding coherent and incoherent waves begins with the fundamental nature of light and its wave-like behavior. Historically, ...
Huygen’s Principle

Huygens Principle

In the 17th century, light was a mystery. Some thought it was made of particles, while others believed it was ...
Optical Instruments

Optical Instruments

The story of optical instruments is as old as civilization itself, beginning with the ancient Egyptians and Mesopotamians who first ...
Dispersion Of Light Through A Prism

Dispersion Of Light Through A Prism

The story of light dispersion through a prism begins with the foundational work of Sir Isaac Newton in the 17th ...
Refraction Through A Prism

Refraction Through A Prism

For centuries, humans marveled at rainbows, their vibrant colors stretching across the sky after a rain shower. But how did ...
Lens Maker's Formula

Lens Maker’s Formula

The journey of the Lens Maker's Formula begins with the craft of lens making, which dates back to the 13th ...

Combination of Thin Lenses in Contact

The concept of lenses has been around since ancient times. The first simple lenses were made from crystal or glass-like ...
Refraction At A Spherical Surface

Refraction At A Spherical Surface

The concept of refraction through spherical surfaces has its roots in ancient civilizations. The Greeks were among the first to ...
Total Internal Reflection

Total Internal Reflection

The concept of TIR has been known since ancient times, but it was not until the 17th century that significant ...
Refraction of Light

Refraction of Light

The understanding of light and its refraction has evolved over centuries. Imagine a time when the mysteries of light were ...
Mirror Equation

Mirror Equation

The mirror equation is a fundamental concept in the field of optics, which is the branch of physics that deals ...
Reflection of Light by Spherical Mirrors

Reflection of Light by Spherical Mirrors

The phenomenon of reflection has been observed and pondered upon since ancient times. The earliest humans saw their reflections in ...
Reflection Of Light

Reflection Of Light

In ancient Greece, around 300 BCE, Euclid, a prominent mathematician, proposed that light travels in straight lines and described the ...
Electromagnetic Spectrum

Electromagnetic Spectrum

The journey to understanding the electromagnetic spectrum began with early studies of light. In the 17th century, Isaac Newton made ...
Electromagnetic Waves

Electromagnetic Waves

The story of electromagnetic waves begins with the brilliant Scottish physicist James Clerk Maxwell. In the mid-19th century, Maxwell was ...
Displacement Current

Displacement Current

The story of displacement current begins with a brilliant 19th-century scientist named James Clerk Maxwell. He was a Scottish physicist ...
Capillary Rise

Capillary Rise

The concept of capillary action dates back to the Renaissance period. The first recorded observation of this phenomenon was by ...
Angle Of Contact

Angle Of Contact

The concept of the angle of contact is deeply rooted in the study of surface tension and capillarity. It was ...
Surface Tension

Surface Tension

The concept of surface tension has fascinated scientists for centuries. The ancient Greeks first observed it, and one of the ...
Surface Energy

Surface Energy

The concept of surface energy has its roots in the observations and experiments of many scientists over the years. It's ...
Bernoulli’s Principle

Bernoulli’s Principle

In the 18th century, a Swiss mathematician named Daniel Bernoulli was about to make a discovery that would change our ...
Critical Velocity

Critical Velocity

The concept of critical velocity has its roots in fluid dynamics and was developed to understand the behavior of fluid ...
Streamline And Turbulent Flow

Streamline And Turbulent Flow

The concept of streamlined flow has been around for centuries, but it began to take shape with the work of ...
Stokes' Law

Stokes’ law

Imagine it's the mid-19th century, and scientists are fascinated by how things move in fluids. This is where Sir George ...
Viscosity

Viscosity

The story of viscosity is quite fascinating and dates back to ancient civilizations, but it was not until the 19th ...
Pascal’s law

Pascal’s law

Pascal's Law states that when pressure is applied to a confined fluid, the pressure change occurs throughout the entire fluid ...
Pressure

What is Pressure?

The concept of pressure was developed in the 17th century by scientists like Blaise Pascal and Evangelista Torricelli. They observed ...
Elastic Moduli

Elastic Moduli

The concept of elasticity dates back to the early scientific explorations of materials. Robert Hooke, an English scientist, first expressed ...
Stress And Strain

Stress And Strain

The study of stress and strain dates back to the early days of engineering and physics, where understanding the behavior ...
Elastic Behavior Of Solids

Elastic Behavior Of Solids

The concept of elasticity has been around for centuries, but it was during the scientific revolution of the 17th and ...
Kinematics of Rotational Motion around a Fixed Axis

Rotational Motion Around A Fixed Axis

The study of rotational motion, or the motion of objects spinning around an axis, has a rich history that dates ...
Moment of Inertia

Moment of Inertia

The concept of moment of inertia was first introduced by Leonhard Euler in 1765. It emerged from the study of ...
Equilibrium Of A Rigid Body

Equilibrium Of A Rigid Body

The concept of equilibrium is fundamental in physics and has been studied for centuries. It’s all about balance and the ...
Torque And Angular Momentum

Torque And Angular Momentum

The concepts of torque and angular momentum are rooted in the studies of rotational motion. Historically, scientists like Isaac Newton ...
Centre of Mass

Centre of Mass

The concept of the Centre of Mass is deeply rooted in the work of ancient scholars and has evolved through ...
Rigid Body

Rigid Body

The study of rigid bodies dates back to the early days of classical mechanics, a branch of physics that deals ...
Collision

Collision

The study of collisions dates back to the times when early philosophers and scientists began to understand the nature of ...
Power

Power

The idea of power as we understand it in physics today has roots that go back to ancient civilizations. However, ...
Various Forms of Energy: The Law of Conservation of Energy

Various Forms of Energy: The Law of Conservation of Energy

Ancient philosophers, such as Thales of Miletus around 550 BCE, had inklings about the conservation of some underlying substance from ...
Conservation of Mechanical Energy

Conservation of Mechanical Energy

The concept of energy conservation is not new; it has been pondered upon since ancient times. The earliest inklings of ...
Potential Energy

Potential Energy

The story of potential energy begins with the ancient Greeks, particularly with Aristotle's concept of "potentiality." Aristotle observed that objects ...
Work-Energy Theorem

Work-Energy Theorem

The concept of the Work-Energy Theorem has been recognized for centuries, but it was not always stated in its current ...
Work

Work: Definition, Formula, Unit, and Types

The idea of work as a form of energy transfer dates back to ancient times, but it wasn't until the ...
Circular Motion

Circular Motion

The story begins with the early astronomers who noticed the circular paths of stars and planets in the sky. They ...
Common Forces in Mechanics

Common Forces in Mechanics

The concept of force has been a part of human curiosity for centuries. The modern understanding of forces in mechanics ...
Equilibrium Of A Particle In Mechanics

Equilibrium Of A Particle In Mechanics

The concept of equilibrium in mechanics has been around since the time of Aristotle, but it was Isaac Newton who ...
Conservation of Momentum

Laws of Conservation of Momentum

The concept of momentum conservation has been around since the time of Galileo, but it was Isaac Newton who formalized ...
Law of Inertia

Law of Inertia

The Law of Inertia, often referred to as Newton's First Law of Motion, has a fascinating history that spans several ...
Uniform circular Motion

Uniform Circular Motion

The story of uniform circular motion begins with the ancient Greeks. Aristotle was one of the first to observe that ...
Projectile Motion

Projectile Motion

Long ago, people observed objects flying through the air, whether it was a rock thrown by hand or an arrow ...
Motion in a Plane

Motion in a Plane

The concept of motion in a plane, or two-dimensional motion, has been a subject of fascination and study for centuries ...
Scalars and Vectors

Scalars And Vectors

The concepts of scalars and vectors are deeply rooted in the history of mathematics and physics. They are essential tools ...
Relative Velocity

Relative Velocity

The concept of relative velocity is deeply rooted in the history of physics and our understanding of motion. It's a ...
Kinematic Equations

Kinematic Equations for Uniformly Accelerated Motion

The story of kinematic equations begins in ancient times with the need to understand the motion of celestial bodies. Early ...
Acceleration

Acceleration

The concept of acceleration has been pivotal in physics, dating back to the works of Galileo Galilei and Sir Isaac ...
Average Speed and Average Velocity

Average Speed And Average Velocity

The history of speed and velocity in physics is a fascinating journey that intertwines with the development of calculus and ...
Position, Path Length And Displacement

Position, Path Length And Displacement

Position The position is where an object is located in space relative to a reference point. It's like saying, "I ...
Frame of Reference

Frame of Reference

The concept of a frame of reference is like the backdrop of a theater stage—it sets the scene for where ...
Mean Free Path

Mean Free Path

The concept of the mean free path has its roots in the kinetic theory of gases, which was developed in ...
Law of Equipartition of Energy

Law of Equipartition of Energy

The concept of energy distribution among particles has been a topic of curiosity and research for centuries. However, it was ...
Kinetic Theory of Gases

Kinetic Theory of Gases 

The Kinetic Theory of Gases is a fundamental concept in physics that describes the behavior of gases at the molecular ...
Ideal Gas Law

Ideal Gas Law

The story of the Ideal Gas Law is a tale of the discovery and the unification of several individual gas ...
Heat, Internal Energy, and Work

Heat, Internal Energy, and Work

The concept of heat as a form of energy that flows from a hotter body to a cooler one was ...
Second Law of Thermodynamics

Second Law of Thermodynamics

The journey of the Second Law of Thermodynamics began in the early 19th century with the work of French engineer ...
First Law of Thermodynamics

First Law of Thermodynamics

The First Law of Thermodynamics didn't just appear out of thin air; it was the result of many scientists' work ...
Zeroth law of Thermodynamics

Zeroth Law of Thermodynamics

The story of the Zeroth Law of Thermodynamics is unique. It's a fundamental principle that was recognized after the first ...
Newton’s Law of Cooling

Newton’s Law of Cooling

Newton’s Law of Cooling is like a recipe for predicting how fast a hot object will cool down. It's named ...
Latent Heat

Latent Heat

The concept of latent heat is like a hidden chapter in the story of temperature and heat. It's the secret ...
Changes of State

Changes of State

The story of changes of state is a tale of transformation, where substances dance between being solid, liquid, and gas ...
Calorimeter

Calorimetry

Calorimetry is like the science of measuring the heat version of a story. It tells us how much energy is ...
Heat Capacity

Heat Capacity

The story of the transformer begins in the 19th century. The principle of electromagnetic induction, which is the science behind ...
Transformer

Transformer

The story of the transformer begins in the 19th century. The principle of electromagnetic induction, which is the science behind ...
LC Oscillations

LC Oscillations

The concept of LC oscillations has its roots in the exploration of electrical phenomena in the late 19th and early ...
Resonance of Series LCR Circuit

Resonance

The concept of resonance comes from the Latin word "resonantia," which means "echo" or "to resound". It was first observed ...
AC Voltage Applied to a Series LCR Circuit.

AC Voltage Applied to a Series LCR Circuit

The story of the LCR circuit begins with the fundamental understanding of electricity and magnetism. In the 19th century, scientists ...
AC Voltage Applied To A Capacitor

AC Voltage Applied To A Capacitor

The journey of capacitors began in the 18th century. The first device capable of storing electric charge was the Leyden ...
Phasor Diagram

Representation of AC Current And Voltage By Phasor Diagram

The story of phasors begins with the need to simplify the mathematics of alternating current (AC) circuits. In the late ...
AC Voltage Applied To An Inductor

AC Voltage Applied To An Inductor

The story of the inductor begins with the pioneering work of Michael Faraday. In 1831, Faraday conducted a series of ...
AC Voltage Applied to a Resistor

AC Voltage Applied To A Resistor

The concept of AC (Alternating Current) voltage is rooted in the late 19th century during the "War of the Currents." ...
AC Generator

AC Generator

The story of the AC Generator, also known as an alternator, is a fascinating chapter in the history of electricity ...
Inductance

Inductance

The story of inductance begins in the early 19th century with the observation of electromagnetic phenomena. Ancient civilizations were aware ...
Eddy Currents

Eddy Currents

The phenomenon of eddy currents has been around since the beginning of electromagnetism, but it wasn't until the 19th century ...
Motional Electromotive Force

Motional Electromotive Force

The story of Motional EMF begins with the pioneering work of Alessandro Volta in the early 19th century. In 1801, ...
Lenz’s law and Law of Conservation of Energy

Lenz’s Law

Lenz's Law is named after the German physicist Heinrich Friedrich Emil Lenz, who formulated it in 1834. Lenz was not ...
Faraday’s Laws

Faraday’s Laws of Electromagnetic Induction

The early 19th century was an era of rapid progress in understanding electricity and magnetism. Before Faraday, scientists like Hans ...
Hysteresis

Hysteresis

The story of hysteresis begins in the 19th century, but its roots stretch back to ancient times. The word "hysteresis" ...
Magnetic Properties of Materials

Magnetic Properties of Materials

The story of magnetism began over 2,500 years ago with the discovery of lodestones. These are naturally occurring magnets, found ...
Magnetic Field of Earth

Magnetic Field of Earth

The story of Earth's magnetic field is as old as the planet itself. It's a tale of discovery, mystery, and ...
Bar Magnet as A solenoid

Bar Magnet

The story of bar magnets begins with the discovery of lodestones, naturally magnetized pieces of the mineral magnetite, which were ...
Moving Coil Galvanometer

The Moving Coil Galvanometer

The moving coil galvanometer is a refined version of the original galvanometer, which was an early instrument used to detect ...
Torque on Current Loop, Magnetic Dipole

Torque on Current Loop, Magnetic Dipole

The 19th century was a period of remarkable scientific discovery, particularly in the field of electromagnetism. Before this era, electricity ...
The Force Between Two Parallel Current Carrying Conductor

The Force Between Two Parallel Current Carrying Conductor

The story begins in the early 19th century. Before this time, electricity and magnetism were thought to be unrelated phenomena ...
What is Toroid ?

Toroid

The story of the toroid begins with the foundational work of Michael Faraday, a pioneering scientist in the field of ...
Solenoid

Solenoid

The story of the solenoid begins with the innovative work of André-Marie Ampère, a French physicist whose name is now ...
Ampere’s Law

Ampère’s Law

The story of Ampere's Law begins with a remarkable discovery in the early 19th century. In 1820, Danish physicist Hans ...
Biot-Savart Law

Biot-Savart Law

The story of the Biot-Savart Law begins in the early 19th century with two French physicists, Jean-Baptiste Biot, and Félix ...
Magnetism

Magnetism

The earliest known magnets were naturally occurring minerals called lodestones, which are pieces of the mineral magnetite that have been ...

Electrical Cell

An electric cell is a device that converts chemical energy into electrical energy by using electrodes and an electrolyte. An ...

Combination of Resistors in Series and Parallel

Combination of Resistors in Series The combination of resistors in series is a way of connecting two or more resistors ...

Electrical Energy and Power

Electrical energy is an important concept in physics and engineering, as well as a practical necessity for everyday life. Electrical ...

Electrical Resistivity

What is Electrical Resistivity Electrical resistivity is a concept that tells us how difficult it is for electric current to ...
Current Electricity

Current Electricity

The story of current electricity is not just about circuits and wires; it's a tale of human curiosity and ingenuity ...

Van de Graaff Generator

The Van de Graaff Generator, a remarkable invention in the field of electrostatics, was the brainchild of Robert J. Van ...
Energy Stored In Capacitors

Energy Stored In Capacitors

The story of capacitors begins in the mid-18th century. Two European scientists, Ewald Georg von Kleist, and Pieter van Musschenbroek, ...

Combination of Capacitors

The journey of capacitors began in the 1740s with the invention of the Leyden jar. This was a simple device ...

Cylindrical Capacitor

The journey of capacitors begins in antiquity. The ancient Greeks discovered that amber when rubbed, could attract light particles—a phenomenon ...

Spherical Capacitor

The story of capacitors begins in the 18th century. It was a time of wigs, quills, and the birth of ...

Parallel Plate Capacitor

In the mid-18th century, during a period known as the Enlightenment, two scientists, Ewald Georg von Kleist and Pieter van ...
Capacitor

Capacitor

The story of the capacitor begins in the 18th century. It was a time of great scientific discovery, and among ...
Specific Heat Capacity

Specific Heat Capacity

In the 18th century, the study of heat and temperature was a hot topic among scientists. One of the key ...
Electric Potential

Electric Potential

The story of electric potential began long before the term itself was coined. In the 17th century, pioneers like Otto ...
Gauss's Law and its Application

Gauss’s Law And Its Application

The story of Gauss's Law begins with Joseph-Louis Lagrange in 1773, who first formulated the law in the context of ...
Electric flux

Electric Flux

The concept of electric flux emerges from the work on electricity and magnetism that began in the 18th century. During ...

Electric Dipole

Before the term 'electric dipole' was formally defined, early scientists observed that certain materials could attract or repel each other ...
Electric Field Lines

Electric Field Lines

The concept of electric field lines is deeply rooted in the work of Michael Faraday, a renowned 19th-century scientist. Faraday ...
Gravitational Field Intensity

Gravitational Field Intensity

The story of gravity begins in ancient times. Greek philosopher Aristotle believed that objects fell towards the Earth due to ...
Gravitational Potential

Gravitational Potential

The story of gravitational potential begins with the ancient Greeks. They were the first to start thinking deeply about the ...
Gravity

Gravity

The understanding of gravity has evolved over centuries, with contributions from many great minds that have shaped our current knowledge ...
Universal Law of Gravitation

Universal Law of Gravitation

Long before Newton, ancient civilizations had their interpretations of gravitational phenomena. The Greeks, for example, observed that objects fall towards ...
Kepler's Law of Planetary Motion

Kepler’s Law of Planetary Motion

The story of Kepler's Laws begins with the meticulous observations of the heavens by Tycho Brahe, a Danish nobleman and ...
Thermodynamic Equilibrium

Thermodynamic Equilibrium

The journey into understanding thermodynamic equilibrium began in the 19th century. It was a time when steam engines were transforming ...
Thermodynamic System

Thermodynamic System

In the 18th century, the invention of the steam engine was a pivotal moment. It was the workhorse of the ...
Semiconductors

Semiconductor

The journey of semiconductors is quite fascinating and pivotal to the technology we use today. It all began in the ...
Types of Semiconductors

Types of Semiconductors

The journey of semiconductors began in the early 19th century when their unique properties were first observed. However, it wasn't ...
Energy Bands In Solids

Energy Bands In Solids

In the early 20th century, scientists were making huge strides in understanding the quantum world. They discovered that electrons orbit ...
Laws of Motion

Laws of Motion

The story of the Laws of Motion is a fascinating journey through time, beginning with ancient philosophers and culminating in ...
Electric Field due to a Point Charge

Electric Field Due To A Point Charge

The idea of an electric field emerged in the mid-19th century, thanks to the pioneering work of Michael Faraday. Faraday ...
Electric Field

Electric Field

The story of the electric field begins in the early 19th century with a brilliant scientist named Michael Faraday. Faraday ...
Coulomb's Law

Coulomb’s Law

The story of Coulomb's Law begins with a French physicist named Charles-Augustin de Coulomb. In 1785, Coulomb made a groundbreaking ...
Electric Charge

Electric Charge

The story of electric charge begins in ancient times. The Greeks were among the first to discover electrical phenomena. Around ...
Temperature

Temperature

The concept of temperature—how hot or cold something is—has fascinated humans for centuries. Even ancient civilizations noticed the effects of ...
Thermal expansion

Thermal Expansion

The concept of materials expanding with heat has likely been observed since ancient times, as people noticed that hot days ...
Anomalous Expansion of Water

Anomalous Expansion of Water

The story of water's peculiar behavior begins in the mid-19th century. In 1859, a British scientist named W.J.M. Rankine made ...
What is Heat?

Heat

The concept of heat—how hot or cold something is—has intrigued humans for centuries. Even ancient civilizations noticed the effects of ...