Square and Compasses any Masonic symbol) that is used by Freemasonry as a whole. In many English speaking countries, the Square and Compasses are depicted with the letter "G" in the center. The letter has multiple meanings, representing different words depending on the context in which it is discussed. The most common is that the "G" stands for Geometry, and is to remind Masons that Geometry and Freemasonry are synonymous terms described as being the "noblest of sciences", and "the basis upon which the superstructure of Freemasonry, and everything in existence in the entire universe is erected. In this context it can also
Fraternal birth order and male sexual orientation brothers increase the odds of homosexuality in later-born males even if they were reared in different households, whereas non-biological siblings, such as step-brothers or adopted brothers, have no effect on male sexual orientation. Indirect evidence also indicates that the fraternal birth order effect is prenatal and biological in nature rather than postnatal and psychosocial: The fraternal birth order effect has been confirmed to interact with handedness, as the incidence of homosexuality correlated with an increase in older brothers is seen only in right-handed males. Since handedness develops prenatally, this finding indicates that prenatal mechanisms underlie the fraternal birth order effect.