Since the Moon's orbit centers on the Earth, rather than the Sun, it would be a little confusing to think of the Moon's orbit as a year. Instead, this cycle of the Moon orbiting the Earth is much closer to our calendar system of months. It takes 27.322 days (or 655.728 hours) for the Moon to orbit the Earth. If that number looks familiar, it's because the orbital period of the Moon is exactly the same as its rotational period.
A self-sealing stem bolt. Self-sealing stem bolts are a basic component of reverse-ratcheting routing planers. (DS9 episodes: Progress, Prophet Motive) They consist of 80% mixed duranium, aluminum, and steel alloys, 11% electrically modulated ceramic, and 9% thermally stabilized plastic.
Threadless stems. Threadless stems are found on most modern mountain and road bikes, and some mid-level and higher-end hybrid bikes. The term threadless technically refers to the absense of threading on the steerer tube and headset, and thus the absense of the two large nuts on the headset. A threadless stem clamps onto the outside of the steerer tube, and is held in place by one or two bolts situated horizontally at the back end of the stem. There are usually a few spacer rings installed beneath and/or above the stem.