The Science 360: at Event Horizon explains physics, space and the technology around them. The centre of the site is its simulations: pages where you change one thing and see what happens, each with a plain-language guide to the physics and the equations behind it.
Who writes it
The articles, the simulations and the code behind both are by Shounak Das. Find the project on X , Instagram , YouTube and Github .
How the simulations work
Each simulation runs the real equation for its topic, such as g = GM ÷ R² for the weight on another planet or N = N₀ × 2−t/T½ for radioactive decay. The numbers on the guide next to each simulation come from the same file the simulation runs on, so the text and the picture cannot disagree. Every guide has a section on what the model leaves out.
If you find a number that looks wrong, please say so through the links above and it will be checked and corrected.
Where to start
The learning paths put the simulations and articles in an order where each step uses the one before:
- The Earth, Sun and Moon clockwork
- Gravity and motion, from a thrown ball to a planet
- Rockets and Mars, from the launch pad to a new world
- Relativity, from time dilation to the twin paradox
- Light and quantum, from bending rays to the double slit
- Stars and scale, from the Sun to a neutron star
Follow new pages by RSS or browse the topic tags.