For Hobbyists & Makers · Blackbody Radiation
Blackbody Radiation for a mass on a spring
Built for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker. Simulate a mass on a spring live below — adjust the inputs and watch it respond, right in your browser.
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
Data Inspector
Temperature5778 K
Peak wavelength502 nm
Colorwhite/yellow
Governing equation
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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Frequently asked questions
- Is this good for hobbyists & makers?
- Yes — this version of "Blackbody Radiation for a mass on a spring" is framed for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.