WikiCards · Card list · Science cards · Annihilation
Uncommon card · Science
Annihilation, an Uncommon card
In particle physics, annihilation is the process that occurs when a subatomic particle collides with its respective antiparticle to produce other particles, such as an electron colliding with a positron to produce two photons.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 59
- DEF
- 36
- Power
- 95
- Wikipedia reads a year
- 72,000
Ranked #2,833 of the 3,000 cards of the base set by power (ATK + DEF).
The facts on the card
The card carries these facts from its Wikipedia article.
- The total energy and momentum of the initial pair are conserved in the process and distributed among a set of other particles in the final state.
- Antiparticles have exactly opposite additive quantum numbers from particles, so the sums of all quantum numbers of such an original pair are zero.
- Hence, any set of particles may be produced whose total quantum numbers are also zero as long as conservation of energy, conservation of momentum, and conservation of spin are obeyed.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Annihilation article was read about 72,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 59 and blocks with 36: each hit it takes is cut by 14 %.
How to get Annihilation
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Annihilation in the power ranking, all domains together.
- Integumentary systemUncommon · Science · ATK 60 DEF 35
- Gérald CausséUncommon · Society · ATK 56 DEF 39
- Atomic massUncommon · Society · ATK 64 DEF 31
- SuperfestUncommon · Society · ATK 54 DEF 41
- AstronomerUncommon · Society · ATK 57 DEF 38
- Carl Theodor DreyerUncommon · Arts · ATK 61 DEF 34
Card lists
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Credits
Text : Wikipedia, Annihilation (revision), CC BY-SA 4.0. Photo : Manticorp, CC BY-SA 3.0, Wikimedia Commons.

