Explaining The Universe on Instagram: "Noble gases are naturally colorless, odorless, and invisible in their stable state, but when an electrical current excites their atoms, they emit distinctive colors that make them useful in lighting. Helium produces a pale yellow or peach glow, while neon is famous for its bright red-orange light seen in neon signs. Argon gives off a violet to pale lavender or blue glow, krypton glows whitish-violet, and xenon emits a strong blue to bluish-violet color. Rad

Members of European Royal Families on Instagram: "Queen Mary of Teck was born on 26 May 1867 at Kensington Palace, London. Her full name was Victoria Mary Augusta Louise Olga Pauline Claudine Agnes of Teck. She was the daughter of Francis, Duke of Teck, of the Württemberg dynasty, and Princess Mary Adelaide of Cambridge, granddaughter of George III. Although of noble birth, the family’s limited finances meant Mary was raised in comparatively modest circumstances, fostering a lifelong sense of fr