1. Roentgen: discovered X-rays (1895)

2. Madame Curie(1867-1934) Together with her husband Pierre, she discovered both Radium and Polonium (1898) Nobel prizes in Physics, and later in Chemistry. Died of leukemia 1934.

5. Radioactive decay sequence for 238 U to lead

8. Trinity Test (Alamagordo) July, 1945 Fission Trojan nuclear power plant

9. Chernobyl, 1986

10. Hydrogen fusion

11. FusionFusion Fusion Fusion

14. CAT scan X-ray slices of brain

15. Positron Emission Tomography(PET): brain images

16. Litvinenko dying of 210 Po radiation poisoning Just before Soon after

17. Lugovoy: a suspect, and also contaminated with Po

18. Magnetic Resonance Imaging (MRI)

19. Ice-man dated by 14 C (~5000 yrs ago) Carbon dating

20. Dead Sea Scrolls (~1800 yrs old)

21. A ‘Picasso’ 30,000 years ago (Chauvet Cave, Southern France)