Quadruple jump controversy maneuver in figure skating. "When it comes to a quadruple jump- it is quite simple really. If no one except for the one Russian skater is able to perform it, you need to make believe that this jump does not exist at all." TV commentators and experts saw Plushenko's "saving power" in managing to land a seemingly off-axis triple Axel as a testament to what real mastery is all about, as few would have been able to save it. "This is exactly what determines the great skill of a figure skater – the ability to save a jump when needed,
Double beta decay or double beta decay are predicted to be very long; hence, quadruple beta decay is unlikely to be realized. The eight candidate nuclei for quadruple beta decay include Zr, Xe, and Nd capable of quadruple beta-minus decay, and Xe, Ba, Gd, and Dy capable of quadruple beta-plus decay or electron capture. In theory, quadruple beta decay may be experimentally observable in three of these nuclei, with the most promising candidate being Nd. Double beta decay In nuclear physics, double beta decay is a type of radioactive decay in which two neutrons are simultaneously transformed into two protons, or vice versa,