Stability of the Solar System essentially the distance from sun to earth). These are now known as the Kirkwood gaps. Some asteroids were later discovered to orbit in these gaps, but their orbits are unstable and they will eventually break out of the resonance due to close encounters with a major planet. Another common form of resonance in the Solar System is spin–orbit resonance, where the period of spin (the time it takes the planet or moon to rotate once about its axis) has a simple numerical relationship with its orbital period. An example is our own Moon, which is in a 1:1 spin–orbit resonance
St Paul's Suite St Paul's Suite St Paul's Suite (Op. 29, No. 2), originally titled Suite in C, is a composition for string orchestra by the English composer Gustav Holst. It was written in 1912, but owing to revisions was not published until 1922. It is named after the St Paul's Girls' School in the United Kingdom, where Holst was Director of Music from 1905 to 1934. It was written in gratitude to the school, which had built a soundproof studio for him. This suite is the most famous of the many pieces he wrote for students at St. Paul's. The suite has