In this article. A solitary pulmonary nodule (SPN) is a single abnormality in the lung that is smaller than 3 cm in diameter. Generally, a pulmonary nodule must grow to at least 1 cm in diameter before it can be seen on a chest X-ray.
The name Mu is of Chinese origin. The meaning of Mu is wood. Mu is used as both a boys and girls name. It consists of 2 letters and 1 syllable and is pronounced Mu.
The muon (/ËmjuËÉn/ ; from the Greek letter mu (Î¼) used to represent it) is an elementary particle similar to the electron, with electric charge of â1 e and a spin of 1â2, but with a much greater mass (7002105700000000000â 105.7 MeV/c2).he muon orbits much closer to the nucleus, so muonic helium can therefore be regarded like an isotope of helium whose nucleus consists of two neutrons, two protons and a muon, with a single electron outside. Colloquially, it could be called helium 4.1, since the mass of the muon is roughly 0.1 amu.