Antoine — Henri Becquerel

Becquerel's most famous achievement was an accidental discovery involving uranium salts.

: Days later, he developed the plate and found a clear, dark image of the crystals—meaning they were emitting "penetrating rays" spontaneously, without any external energy source like the sun. antoine henri becquerel

Beyond the initial discovery, Becquerel’s research advanced the field in several ways: antoine henri becquerel

: On a cloudy day in Paris, he placed uranium crystals on a photographic plate wrapped in black paper and tucked them in a dark drawer. antoine henri becquerel

: Inspired by the discovery of X-rays, Becquerel wanted to see if phosphorescent materials emitted X-rays after being exposed to sunlight.