The allegorical figures of 'Night" and 'Day' were created by Michelangelo for the Medici Tomb in the Church of San Lorenzo. The complete project was never finished. Micheangelo began work on the 'New Sacristry' in 1534, the same year he left Florence, and work continued until he was nearly 60. The statues seem to rest uneasily on the 'Tomb of Guiliano de' Medici' and are dated 1520-1534.
David.
Michelangelo and Galileo were not brothers. Galileo was born only 3 days from the day that Michelangelo died.
We do not know exactly, but about 1530.
It takes 24 hours for one complete cycle.
One year.
The Earth makes a complete revolution about every 24 hours, giving us a day and a night.
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Neptune has a day and night cycle as does all the planets. Neptune's day and night are shorter than Earth's because it takes Neptune only 16 hours to complete a rotation.
Day and night are caused by the rotation of the Earth on its axis. As the Earth rotates, different parts of the planet are either facing towards the Sun (day) or away from the Sun (night). This rotation takes approximately 24 hours to complete, creating the cycle of day and night.
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One complete turn of a planet's axis is known as a "single rotation." This rotation typically takes one day to complete on Earth, causing the cycle of day and night.
Night and day are defined by the rotation of the Earth on its axis. During the day, the side of the Earth facing the Sun experiences daylight, while the opposite side experiences night. This cycle takes approximately 24 hours to complete.