The Nuremberg Egg is an ornate, sophisticated 16th-century mechanical device that was designed to display the astronomical positions of the sun, moon, and stars, as well as the date, time, and various other measurements. It was created by the German mathematician and instrument maker, Johann Friedrich Mller.The Nuremberg Egg is an intricately designed mechanical device from the 16th century, crafted by the German mathematician and instrument maker Johann Friedrich Mller. This remarkable instrument served as a sophisticated means to display astronomical information, including the positions of the sun, moon, and stars, along with details such as the date and time. The Nuremberg Egg showcased the craftsmanship and ingenuity of the era, combining both artistic and scientific elements in a single mechanical creation.