Understanding the Universe's Power

Stellar Radiation & Energy Transfer

Stars emit energy across a wide spectrum, primarily as electromagnetic radiation. This includes visible light, infrared, ultraviolet, and X-rays. The total amount of energy radiated by a star is determined by its surface temperature and size – hotter stars radiate more energy overall.

Our simulator models radiative transfer, allowing you to observe how photons interact with stellar atmospheres. Key parameters include the Stefan-Boltzmann law (E = σT⁴) which describes the relationship between a blackbody's radiance and temperature, and the concept of absorption coefficients.

E = σT⁴

Gravitational Potential Energy

Masses exert a gravitational force on each other. The closer two masses are, the stronger this force and therefore the greater the potential energy associated with their relative position.

In our simulation, you can manipulate the masses of celestial bodies to observe changes in gravitational potential energy. This demonstrates the fundamental principle that energy is stored within systems due to their spatial arrangement.

U = -GmM/r

Radiative Equilibrium

A star exists in a state of radiative equilibrium when the energy it radiates outwards equals the energy it absorbs from within. This balance is crucial for maintaining a stable temperature.

By adjusting parameters like opacity and absorption coefficients, you can simulate how changes in stellar structure affect this equilibrium. The simulator allows for exploring scenarios involving convection and nuclear fusion.

Galactic Dynamics & Energy Flow

Galaxies are composed of stars, gas, dust, and dark matter all interacting under the influence of gravity. The simulation allows exploration of energy flow between these components.

You can model interactions such as tidal forces, orbital motion, and accretion disks to understand how energy is transported throughout a galactic system.

Frequently asked questions

Try it live

Everything above runs in your browser — open Cosmic Energy Simulation and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.