When the tip disintegrates, it melts and helps solidify the weld to the base material. Arc studs range from a #8 to 1 1â4  diameter. The lengths are variable from 3/8 to 60 (for deformed bars). Arc studs are typically loaded with an aluminum flux ball on the weld end which aids in the welding process.
Quoted from wiki: Inevitable discovery is a doctrine in United States criminal procedure that allows evidence of a defendant's guilt that would otherwise be considered inadmissible under the exclusionary rule to be admitted into evidence in a trial.
The Monroe Doctrine was a foreign policy statement originally set forth in 1823 which created separate spheres of European and American influence. The United States promised to stay out of European business and told the Europeans to stay out of the Western Hemisphere's business.