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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.
Krypton is used in some photographic flashes for high speed photography. Krypton gas is also combined with mercury to make luminous signs that glow with a bright greenish-blue light. [39] Krypton is mixed with argon in energy efficient fluorescent lamps, reducing the power consumption, but also reducing the light output and raising the cost. [40]
Kal-El can lead an alter ego as Clark Kent because Kryptonians appear identical to humans. Also, in both Silver Age and Modern Age continuity, Kryptonians have more than one ethnic group, such as dark-skinned Kryptonians from Krypton's Vathlo Island that resemble Earth humans of Sub-Saharan African, Negrito, Melanesian, and Indigenous Australian descent and a group from the continent of Twenx ...
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Krypton is an American science fiction television series developed by David S. Goyer for Syfy. Focusing on Seg-El ( Cameron Cuffe ), the grandfather of DC Comics superhero Kal-El / Superman , the series is set approximately 200 years before the birth of Superman and takes place on the eponymous fictional planet .
Kryptonite is a story arc written by Darwyn Cooke and Tim Sale that appeared in Superman Confidential, a monthly series that was published from January 2007 and then later cancelled in April 2008 that told stories set in the character's early years of his career.
Adil Oralbekuly Zhälelov, born Kulmagambetov (Kazakh: Әділ Оралбекұлы Жәлелов (Құлмағамбетов); Russian: Адиль Оралбекович Жалелов (Кулмагамбетов), romanized: Adil Oralbekovich Zhalelov (Kulmagambetov); born 3 June 1990), known professionally as Skryptonite (Russian: Скриптонит, romanized: Skriptonit) [1] is a ...
Krypton-81 is useful in determining how old the water beneath the ground is. [10] Radioactive krypton-81 is the product of spallation reactions with cosmic rays striking gases present in the Earth atmosphere, along with the six stable or nearly stable krypton isotopes. [11] Krypton-81 has a half-life of about 229,000 years.