pretty slow today. so here's another Comic-Snip! Kryptonite

[Javaman]

https://en.wikipedia.org/wiki/Kryptonite

Kryptonite is a material that appears primarily in Superman stories. In its most well-known form, it is a green, crystalline material that emits a peculiar radiation that weakens and sickens Superman, but is generally harmless to humans when exposed to it in short term. However, when it gets into their bloodstream it can poison them. There are other varieties of kryptonite such as red and gold kryptonite which have different but still generally negative effects on Superman. Due to Superman's popularity kryptonite has become a byword for an extraordinary weakness, synonymous with "Achilles' heel".[1]

An unpublished 1940 story titled "The K-Metal from Krypton", written by Superman creator Jerry Siegel, featured a prototype of kryptonite. It was a mineral from the planet Krypton that drained Superman of his strength while giving superhuman powers to mortals. This story was rejected because in it Superman reveals his identity to Lois.[2]

The mineral known as kryptonite was introduced in the radio serial The Adventures of Superman, in the story "The Meteor from Krypton", broadcast in June 1943.[3] An apocryphal story claims that kryptonite was introduced to give Superman's voice actor, Bud Collyer, the possibility to take a vacation at a time when the radio serial was performed live. In an episode where Collyer would not be present to perform, Superman would be incapacitated by kryptonite, and a substitute voice actor would make groaning sounds. This tale was recounted by Julius Schwartz in his memoir.[4] However, the historian Michael J. Hayde disputes this: in "The Meteor From Krypton", Superman is never exposed to kryptonite. If kryptonite allowed Collyer to take vacations, that was a fringe benefit discovered later. More likely, kryptonite was introduced as a plot device for Superman to discover his origin.[5]

In the radio serial, Krypton was located in the same solar system as Earth, in the same orbit, but on the opposite side of the Sun. This provided an easy explanation for how kryptonite found its way to Earth.

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