Clouds Chambers

"Invented in 1911, cloud chambers like this one were among the first devices used to study high-energy particles called cosmic rays, believed to come from exploding stars called supernovas."https://www.exploratorium.edu/exhibits/cloud-chamber?utm_source=join1440&utm_medium=email&utm_placement=newsletter&user_id=66c4c92f5d78644b3ac5d5b4