shahkar jalal

Joined October 2025

273 stories

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Why Does Time Slow Down Near Massive Objects?
The Old View: Time as Absolute Before the 20th century, scientists believed time was absolute. Newton’s Concept of Time
By shahkar jalal3 months ago in Education
Is Time an Illusion Created by the Human Brain?
What Do We Mean by “Time”? Before asking whether time is an illusion, we must define it. In everyday life, time means:
By shahkar jalal3 months ago in Education
Can Time Stop Inside a Black Hole?
What Is a Black Hole? A black hole forms when a massive star collapses under its own gravity. Key Features • Enormous mass packed into a tiny volume
By shahkar jalal3 months ago in Education
Why Does Time Move Forward and Not Backward?
The Mystery of Time’s Direction Time’s forward motion is often called the arrow of time—a term describing the one-way flow from past to future.
By shahkar jalal3 months ago in Education
Why Does Time Move Slower Near Massive Objects?
The Classical View of Time Before the 20th century, time was thought to be absolute. Newton’s Idea of Time • Time flows uniformly everywhere
By shahkar jalal3 months ago in Education
How Chaos Theory Shapes Weather, Orbits, and Life
What Is Chaos Theory? Chaos theory is the study of deterministic systems that are extremely sensitive to initial conditions.
By shahkar jalal3 months ago in Education
The Physics of Light: Wave, Particle, or Both?
What exactly is light? Is light a wave, like ripples on water? Is it a particle, like tiny bullets of energy? Or is it somehow both?
By shahkar jalal3 months ago in Education
Ultra-Dense Objects: The Strange Physics of Neutron Stars
What Is a Neutron Star? A neutron star is the collapsed core of a massive star that exploded in a supernova. Basic Facts
By shahkar jalal3 months ago in Education
What Is Quantum Decoherence? Where Quantum Weirdness Disappears
Quantum Weirdness: A Quick Reminder Before understanding decoherence, we need to recall what makes quantum mechanics strange.
By shahkar jalal3 months ago in Education
Superconductors: How Materials Lose All Electrical Resistance
What Is Electrical Resistance? Electrical resistance is the opposition a material offers to the flow of electric current.
By shahkar jalal3 months ago in Education
Antimatter: Why It Exists and Where It Went — Searching for the Cosmic Mystery
What Is Antimatter? Antimatter is made of antiparticles, which are counterparts to ordinary particles but with opposite properties.
By shahkar jalal3 months ago in Education
Could the Universe Be Finite? Searching for the Cosmic Edge
What Does “Finite Universe” Really Mean? At first glance, a finite universe sounds simple: a universe with a definite size. But in cosmology, finite does not necessarily mean having walls or edges like a box.
By shahkar jalal3 months ago in Education