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• #Captain planet wiki good bomb is hard to find series

Superman co-creator Jerry Siegel did write a story in 1940 that involved a piece of Krypton, referred to as The K-Metal from Krypton, which robbed Superman of his strength while giving humans superpowers, but the story was never published. It was not until 1949 that the comic book writers incorporated it into their stories, as both a convenient danger and weakness for Superman and to add an interesting element to his stories. The episode in which it first briefly appeared now exists only as a script, but the substance played a part in at least one major plotline during the course of the program. It was actually introduced in 1943 on the Superman radio series, as both a plot device and to allow Superman's actor, Bud Collyer, to occasionally take time off. Superman's first encounter with kryptonite did not take place in his comic. Other varieties of kryptonite began to show up frequently beginning in the late 1950s comics, reaching a peak in appearances in 1960s Superman series. In Adventure Comics (volume 1) #171 (December 1950) the kryptonite shown trapping Superboy was colored purple but acted just like regular Green. The most commonly depicted variety of kryptonite is greenish in coloring, though it was colored red in its first appearance in Superman (volume 1) #61 (November / December 1949). Originally, the DC Universe was home to a variety of minerals collectively called kryptonite.

The newly discovered mineral was first analyzed by Dr. Recently, a mining group in Serbia discovered a new mineral, called Jadarite, the chemical composition of which is sodium lithium boron silicate hydroxide, the chemical formula for Kryptonite written on a case of the substance in the film Superman Returns minus fluoride. It is usually found in the form of a glowing green rock or metal, but crystalline forms have also made appearances (most notably jewel kryptonite see Forms of kryptonite below) along with different-colored variants, such as the red form. Kryptonite was produced from the material of Krypton, when it was destroyed in an explosion. The name "kryptonite" covers a variety of forms of the substance, but usually refers to the most common "green" form. The material, usually shown as having been created from the remains of Superman's native planet of Krypton, generally has detrimental effects on Superman and any other Kryptonian exposed to it.

#Captain planet wiki good bomb is hard to find series

Kryptonite is a fictional substance from the Superman comic book series (and subsequent related media).