WikiCards · Card list · Science cards · Background radiation
Uncommon card · Science
Background radiation, an Uncommon card
Background radiation is a measure of the level of ionizing radiation present in the environment at a particular location which is not due to deliberate introduction of radiation sources.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 77
- DEF
- 80
- Power
- 157
- Wikipedia reads a year
- 51,000
Power 157 (ATK + DEF): stronger than 80 % of WikiCards cards.
Background radiation quiz: 3 questions
Three questions on the Background radiation card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
Background radiation originates from a ______ of sources, both natural and artificial.
Answer
variety. Background radiation originates from a variety of sources, both natural and artificial. From the Background radiation article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Amsterdam Metro. Amsterdam Metro 80 · Background radiation 77 · Forging 74 · Erbium 71 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Background radiation. Background radiation 51,000 · Jöns Jacob Berzelius 35,000 · Gaudapada 24,000 · Bruno Pontecorvo 15,000 Wikipedia reads over a year.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- Background radiation originates from a variety of sources, both natural and artificial.
- These include both cosmic radiation and environmental radioactivity from naturally occurring radioactive materials, as well as man-made medical X-rays, fallout from nuclear weapons testing and nuclear accidents.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Background radiation article was read about 51,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 77 and blocks with 80: each hit it takes is cut by 32 %.
How to get Background radiation
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 Background radiation in the power ranking, all domains together.
- ErbiumUncommon · Science · ATK 71 DEF 86
- Amsterdam MetroUncommon · Society · ATK 80 DEF 77
- WoodworkingUncommon · Society · ATK 73 DEF 84
- Acacia pycnanthaUncommon · Nature · ATK 72 DEF 85
- Irvine, North AyrshireUncommon · Society · ATK 75 DEF 82
- BaodingUncommon · Society · ATK 78 DEF 79
Card lists
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- All cards from A to ZEvery card, by name
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Credits
Text : Wikipedia, Background radiation (revision), CC BY-SA 4.0. Photo : Kiwiev, CC0, Wikimedia Commons.



