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Kryptonite is a fictional material that appears primarily in Superman stories published by DC Comics.In its best-known form, it is a green, crystalline material originating from Superman's home world of Krypton that emits a unique, poisonous radiation that can weaken and even kill Kryptonians.
Kryptonite: DC Comics: A radioactive crystal originating from the planet Krypton that is harmful to Kryptonians. Kryptonite comes in various colors with differing effects, and has been variously depicted as an element and compound. Kyber crystal: Star Wars: A rare, semi-sentient, crystalline material found across the galaxy.
Krypton is usually portrayed in comics as the home of a fantastically advanced civilization, which is destroyed when the planet explodes. As originally depicted, all the civilizations and races of Krypton perished in the explosion, with one exception: the baby Kal-El who was placed in an escape rocket by his father, Jor-El, and sent to the planet Earth, where he grew up to become Superman.
Although green kryptonite is the most commonly seen form, writers have introduced other forms over the years: such as red, gold, blue, white, and black, each with peculiar effects. [172] Gold kryptonite, for instance, nullifies Superman's powers but otherwise does not harm him. Kryptonite first appeared in a 1943 episode of the radio serial. [173]
Krypton is highly volatile and does not stay in solution in near-surface water, but 81 Kr has been used for dating old (50,000–800,000 years) groundwater. [25] 85 Kr is an inert radioactive noble gas with a half-life of 10.76 years. It is produced by the fission of uranium and plutonium, such as in nuclear bomb testing and nuclear reactors.
And now I'm like, "You look like you're 22 years old." So I was like," I'm gonna go to physical therapy." ... Give me your biggest superpower and your biggest piece of kryptonite when it comes to ...
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She looks like a mom. We're both going for the ranch. And I both grabbed it, and I looked at her, actually. It's like a meet-cute! I'm pretty sure I watched a romcom like that called Love Over the ...