Radioactive Gas in a Cloud Chamber: A Wilson cloud chamber is a particle detector used for visualizing the passage of ionizing radiation using a sealed container of supersaturated water or alcohol vapor. In this example, the radioactive isotope is Radon-220 gas that decays into polonium and then lead. The V-shaped trails are produced by two alpha particles from the two decay events. Source: Periodic Videos #science #physics #CloudChamber #GIF

Midnight Sun: A midnight sun is a natural phenomenon that occurs around the summer solstice in places north of the Arctic Circle or south of the Antarctic Circle, when the Sun remains visible at midnight. The number of days per year with a midnight sun increases as one moves...See more