Black Holes: The Inescapable Giants of Spacetime
A black hole is a region of spacetime where gravity is so strong that nothing — not even light —
The Equivalence Principle: Gravity and Inertia as One
The equivalence principle is a fundamental concept in Einstein’s theory of general relativity, stating that gravitational mass and inertial mass
The Photoelectric Effect: Proof of Light’s Quantum Nature
The photoelectric effect is a phenomenon in which electrons are ejected from a metal surface when light shines on it.
Electromagnetic Waves: Perpendicular Electric and Magnetic Fields
Electromagnetic (EM) waves are a form of energy that travels through space as a combination of oscillating electric and magnetic
Speed of Sound: Faster in Solids, Slower in Gases
The speed of sound depends on the medium through which it travels. It moves fastest in solids, slower in liquids,
Absolute Zero: The Coldest Possible Temperature
Absolute zero is the theoretical lowest possible temperature, defined as 0 Kelvin (K) or −273.15°C (−459.67°F). At this temperature, a
Entropy: The Measure of Disorder in Thermodynamics
In thermodynamics, entropy is a fundamental concept that quantifies the amount of disorder or randomness in a system. Denoted by
Dark Energy: The Force Behind Cosmic Acceleration
Dark energy is a mysterious and dominant component of the universe, accounting for about 68% of its total energy content.
Dark Matter: The Invisible Mass of the Universe
Dark matter is a mysterious and invisible form of matter that makes up approximately 27% of the total mass-energy content
The Big Bang Theory: Birth of the Universe
The Big Bang Theory is the leading scientific explanation for how the universe began. It proposes that the universe started