How do I simulate a virus spread?

Open this page and use the live Star Lifecycle tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a virus spread from your own measurements.

Use case · powered by Star Lifecycle

Star Lifecycle for a virus spread

Simulate a virus spread live in your browser. This runs the real Star Lifecycle solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

H-R Diagram

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Hertzsprung-Russell DiagramLive

the map of the stars

Controls

Presets

Your star temperature (K)

The H-R diagram plots stars by temperature and luminosity, revealing the main sequence (a diagonal band), red giants, supergiants, and white dwarfs. Your star (pink ring) sits on the main sequence where luminosity scales as T⁴.

▶ Run in Python

Data Inspector

Spectral classG

Luminosity1.00 L☉

Temperature5,778 K

Governing equation

\frac{L}{L _{⊙}} = (\frac{T}{T _{⊙}})^{4} = (\frac{5778}{5778})^{4} = 1.00

Reading this result: A cool orange K-type star: lower temperature places it low-right on the main sequence, dimmer and longer-lived than the Sun.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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Blackbody

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Blackbody RadiationLive

Planck's law · Wien's displacement

Controls

Every warm object glows with a Planck spectrum. Heat it up and the peak shifts to shorter (bluer) wavelengths — that's why stars range from red to blue-white.

Presets

Temperature (K)

▶ Run in Python

Data Inspector

Temperature5778 K

Peak wavelength502 nm

Colorwhite/yellow

Governing equation

λ_{m a x} = \frac{b}{T} = \frac{2.898 \times 1 0 ^{6}}{5778} = 502 nm

Reading this result: At 5778 K the Planck curve peaks at 502 nm, inside the visible band — Wien's law makes peak wavelength ∝ 1/T, so doubling the temperature halves the peak wavelength and shifts the glow toward blue.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full Star Lifecycle tool models a virus spread with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Star Lifecycle

Star Lifecycle for a bacterial growth Star Lifecycle for a predator-prey cycle Star Lifecycle for a neuron firing Star Lifecycle for a heartbeat Star Lifecycle for a gene expression Star Lifecycle for a protein fold Star Lifecycle for a muscle contraction Star Lifecycle for a blood flow

Other ways to simulate a virus spread

Dynamical Systems for a virus spread Epidemic Network for a virus spread Spatial Predator–Prey for a virus spread SIR Epidemic for a virus spread Hodgkin-Huxley Neuron for a virus spread Lotka-Volterra for a virus spread

Frequently asked questions

How do I simulate a virus spread?: Open this page and use the live Star Lifecycle tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a virus spread from your own measurements.