@tr.mwambi: A star’s colour is more than just beautiful. It tells us how hot it is.In 1893, German physicist Wilhelm Wien discovered that as an object gets hotter, the wavelength at which it emits the most radiation becomes shorter. This relationship is known as Wien’s Displacement Law:λₘₐₓT = 2.898 × 10⁻³ m·KThat is why hot blue stars shine at shorter wavelengths than cooler red stars. By studying the light from distant stars, we can estimate their temperatures without ever visiting them.#physics #fyp

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Friday 06 November 2026 05:07:20 GMT