Tag Archives: Radioactivity

Main image: Pierre and Marie Curie working on the study of radioactivity in their Paris laboratory, sometime before 1907. Inset: A 1918 photograph of Henri Becquerel, the discoverer of radioactivity.
1896: The Dawn of Radioactivity – Pioneering Discoveries of Röntgen, Becquerel, and the Curies

Discoveries by Röntgen, Becquerel, and the Curies in radioactivity reshaped our understanding of the natural world, leading to groundbreaking advancements in physics and science

A 1910 photograph of the physicist William Thomson, also known as Lord Kelvin, conducting compass measurements.
1862: Tracing Earth’s Timeline – The Scientific Journey to Determine Its Age

William Thomson, Lord Kelvin, initially estimated Earth's age at 20 to 40 million years, a figure debated by nineteenth-century scientists. The discovery of radioactivity led to a revised estimate of 4.567 billion years, aligning with [...]