How our universe physically works.
Physics
How our universe physically works.
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Stories, Quotes, and FAQs.
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PHYSICS
Featured Story
Science
Story
Jul 1632
Relativity Principle
Relativity Principle
From Galileo to Einstein, the relativity principle changed how we think about motion. No uniformly moving observer gets a privileged view of reality. Einstein extended this idea beyond mechanics to all physics, including light, helping reveal that space and time themselves depend on the observer’s motion.
Featured Quote
Updated This Week
Philosophy
Quote
“We are all connected to each other biologically, to the Earth chemically, and to the rest of the universe atomically.”
- Carl Sagan
- circa 1980
We Are Stardust
Carl Sagan had many similar quotes to this.
Carl Sagan reminds us that we are intimately connected to the universe. The particles that form our bodies are borrowed from a cosmic pool of just 17 particles and four forces. Even more humbling, the molecules within us were forged in the hearts of stars, linking us directly to the vast cosmos that surrounds us. The wise perspective is humbling: we are not separate things dropped into the cosmos—we are temporary arrangements of the cosmos itself.
Featured FAQ
Science
FAQ
Trivia: Did Einstein or Galileo discover the Relativity Principle?
Relativity
Galileo Galilei showed that constant motion is undetectable. That physics works the same on a smooth ship or solid ground. Isaac Newton made gravity universal. Centuries later, Albert Einstein extended Galileo’s insight. Einstein revealed that space and time are intertwined. Energy is matter, and gravity is the very fabric of spacetime itself.
Updated Tidbits
Science
FAQ
Can anything travel faster than light?
Speed of Light
08 Aug 2026
(Updated 2 weeks ago)
Science
FAQ
Is “the speed of light” really the best name for the universe’s maximum speed?
Relativity
08 Aug 2026
(Updated 2 weeks ago)
07 Jul 2026
(Updated 3 weeks ago)
Physics
Empirical Metaphysics
Forces, fields, and fundamental law.
Physics studies the deepest measurable structures of reality — matter, energy, space, and time. It asks not only how things move, but what they are. From quantum fields to gravitational curvature, physics bridges the gap between what exists and how we describe it. It is metaphysics disciplined by experiment.
Aricle Series
Multi-Part Reads
Expansion Theory
This series explores what we know, what we reasonably infer, and what we still merely speculate about the expanding universe and its possible fate.
Particle Physics
Particle physics explores the hidden structure of reality, showing that “empty” space is not truly empty and that the smallest parts of nature behave in ways that challenge common sense.
Deep-Dive Articles
The Double‐slit Experiment Explored
Reality may not be particles afterall. It may be more like waves, vibrations, or strings.
Speculation on Quantum Entanglement: A Missing Mass Puzzle
Quantum entanglement is the link between particles in which measuring one relates to the other instantly.
Speculative Ideas in Science: Rip-Bang, Bigfoot, and Beyond
Speculation has a real place in science and in your worldview, but speculative ideas are not established truths. They are starting points, possibilities, or failed ...
The Nature of Time
Time is not a ticking metronome; it is the ledger of causation.
Empty Space: A Dive into Particle Physics
Empty space is not nothing—it is structured, active, and defined by fields, particles, and forces.
Must-Reads
Particle Physics
The Double‐slit Experiment Explored
Reality may not be particles afterall. It may be more like waves, vibrations, or strings.
Big Bang
The End of the Universe Explained
We do not know the ultimate fate of the universe, but the leading ideas are that it expands forever, collapses and starts over, or ends ...
Astronomy
The Expanding Universe Explained
ΛCDM remains the leading cosmological model because our current best measurements indicate gravity is not strong enough to stop the universe’s expansion.
New Ideas
Particle Physics
Speculation on Quantum Entanglement: A Missing Mass Puzzle
Quantum entanglement is the link between particles in which measuring one relates to the other instantly.
Structure
The Islands-of-Universes Idea
We often talk as if our universe is a self-contained whole, but beyond the limits of observation, we simply do not know what else may ...
Physics
Cosmocycles: A Proposed Cosmic Calendar Based on Cyclic Universe Model
If some version of the Big Crunch model ever returns to favor, we can picture one full cosmic cycle, a kind of cosmic year. Cosmocycles ...
Updated Articles
TST COLUMN
05 Jun 2024
Philosophy
Article
Speculative Ideas in Science: Rip-Bang, Bigfoot, and Beyond
Idea Theory Framework
Wed 5 Jun 2024
(2 years ago)
Updated 1 month ago.
TST COLUMN
01 May 2028
Science
Article
The End of the Universe Explained
Expanding Universe
Fri 22 Mar 2024
(2 years ago)
Updated 3 months ago.
TST COLUMN
08 Mar 2024
Debut
Science
Article
The Islands-of-Universes Idea
Expanding Universe
Fri 8 Mar 2024
(2 years ago)
Updated 4 months ago.