At the turn of the nineteenth century, John Dalton proposed the atomic theory. He proposed each element comprises atoms of a single, unique type, and that these atoms could combine in fixed ratios to form compounds. Scientists raced to find more of these “pure” elements - hydrogen, oxygen, nitrogen, and
People often depict the moon as a perfect bright circle in the night sky, but of course, it's not always like that. Sometimes you see just a crescent of the moon, and other times it's half a circle. It might not seem like much, but a
About 2300 years ago, the world's greatest library was located in Alexandria, Egypt. But how did this library gain such significance? The ruler of Egypt implemented a straightforward rule: any ship docking at its shores had to surrender all its books, which were then copied. The originals were
About a millennium ago, in the vibrant heart of medieval Cairo, where ancient wisdom and curious minds intersected, lived the brilliant scholar Ibn al-Haytham. It was within these walls that he embarked on a groundbreaking journey to study the nature of light, relying on observations rather than attributing everything to