*Famous Discoveries:* ✅ *Radioactivity* was discovered by *Henri Becquerel* in 1896 ✅ *X-Ray* was discovered by *Roentgen* 1895 ✅ *Oxygen* was discovered by *Joseph Priestley* in 1774 ✅ *Soda water* was discovered by *Joseph Priiestley* in 1767 ✅ *Gama Rays* were discovered by *Paul Villard* in 1900. https://whatsapp.com/channel/0029VaCcKUp1SWsxPaZ47A3w