The Fabric of the Cosmos
Like Duolingo, but for The Fabric of the Cosmos. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
74 levels across 9 sections, about 148 minutes end to end, roughly 30 days at five minutes a day. It moves through The Curvature of Reality, Stellar Graveyards, The Abyss, Galactic Engines, Cosmic Architecture, The Invisible Scaffold, Relativistic Paradoxes, The Quantum Frontier, and The Ultimate Horizon. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android
Key ideas in The Fabric of the Cosmos
- Space and time are a single 'spacetime' fabric where events are coordinates
- Massive objects like stars create a 'well' in the geometry of spacetime
- Disturbances in spacetime travel as waves at a finite speed
- Objects follow the straightest possible path through this warped geometry
- An event in space is simultaneously an event in time within the fabric
- Gravity is a consequence of shape rather than a traditional magnetic-like pull
- Information about gravitational changes travels at the speed of light (c)
- Objects in motion follow 'geodesics', the shortest paths in curved space
- The relationship between space and time as a single fabric
- Nothing, including physical 'news' of an event, can outrun light
- Gravity as the path of least resistance (geodesic)
- Mass curves geometry rather than exerting a 'pulling' force
- The speed of light as a limit for information transfer
- Stronger gravity (closer to mass) slows the passage of time
- Time dilation occurs because gravity stretches the intervals between moments
- GPS satellites must account for faster-ticking clocks in weaker gravity
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives The Fabric of the Cosmos the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
What happens to the geometry of spacetime when a massive object like a star is placed within it?
Get it right to open this lesson and 73 more in the app.
Where The Fabric of the Cosmos takes you
Explore the extreme physics of the universe, from the warped space-time of black holes to the colossal structures of the cosmic web. This mastery course bridges the gap between basic astronomy and the complex relativistic mechanics that govern our reality.
- 1
The Curvature of Reality
- Beyond the Grid
- The Geometry of Gravity
- 2
Stellar Graveyards
- Neutron Star Anatomy
- Pulsars and Magnetars
- 3
The Abyss
- The Event Horizon
- Spaghettification and Tidal Forces
- Rotating Black Holes
- 4
Galactic Engines
- Supermassive Hearts
- Active Galactic Nuclei (AGN)
- 5
Cosmic Architecture
- Galactic Morphology
- The Cosmic Web
- 6
The Invisible Scaffold
- Dark Matter Dynamics
- Dark Energy and Expansion
- 7
Relativistic Paradoxes
- Gravitational Lensing Mastery
- Time Dilation and Redshift
- 8
The Quantum Frontier
- Hawking Radiation
- The Holographic Principle
- 9
The Ultimate Horizon
- The Big Bang and Inflation
- Cosmic Fates
9 sections · 19 units · 74 levels. Built to play, not to enroll.
You pick the voice
The Fabric of the Cosmos is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
More Science on Tomo
Gravity's Extremes: From Big Bang to Black Holes
Explore how the curvature of spacetime dictates the birth of the universe and the mysterious physics of its most dense objects.
The Mechanics of the Cosmos
Master the mathematical laws and physical principles that govern everything from the motion of planets to the quantum behavior of starlight.
The Architecture of the Cosmos
Go beyond the basics of stargazing to master the mechanics of galactic structures, the physics of singularities, and the ultimate fate of the universe.
The Mechanics of the Cosmos
Go beyond the basics of stargazing to master the physics of planetary systems, the life cycles of stars, and the extreme environments of black holes and quasars.
The Quantum Architecture of the Universe
Move beyond the basics of wave-particle duality to understand the probabilistic machinery that builds our reality and shapes the cosmos.
Astrophysics and the Cosmos
Move beyond basic stargazing to understand the physical laws governing the birth of stars, the warping of spacetime, and the ultimate fate of the universe.
Start The Fabric of the Cosmos today.
Download Tomo, search The Fabric of the Cosmos, and play your first lesson in under a minute.