Earth’s rocks are full of uranium, so why are they not constantly exploding as they are hit with cosmic rays? 💥 Physicist Frank Close explains the crucial difference in uranium isotopes. Watch the full talk on the dawn of the Nuclear Age: youtu.be/rBV4czuCFvg | Royal Institution of Great Britain

5.7K views · 107 reactions | Exactly 70 years ago on August 6, 1945 the atomic bomb exploded over Hiroshima. From this moment on the world changed forever and Uranium became the most desirable & terrifying rock on Earth. Learn more: sbs.com.au/uranium | SBS Australia | Facebook