Papyrus 115 [SEP] material used
Papyrus 115
Papyrus 115 ("P. Oxy." 4499, designated by formula_1 in the Gregory-Aland numbering) is a fragmented manuscript of the New Testament written in Greek on papyrus. It consists of 26 fragments of a codex containing parts of the Book of Revelation, and probably nothing more. It dates to the third century, "c." 225-275 AD. Grenfell and Hunt discovered the papyrus in Oxyrhynchus, Egypt.
formula_1 was not deciphered and published until the end of the twentieth century. It
to cathodically protect metals that are exposed to sea water. A zinc disc attached to a ship's iron rudder will slowly corrode while the rudder stays intact. Similarly, a zinc plug attached to a propeller or the metal protective guard for the keel of the ship provides temporary protection.
With a standard electrode potential (SEP) of −0.76 volts, zinc is used as an anode material for batteries. (More reactive lithium (SEP −3.04 V) is used for anodes in lithium batteries ). Powdered zinc is used in