WikiCards
Play on iPhone nowFree in Safari. Add it to your Home Screen.Play
WikiCards · Card list · Nature cards · Geomagnetic reversal
Uncommon card · Nature
Geomagnetic reversal, an Uncommon card
A geomagnetic reversal is a change in the Earth's dipole magnetic field such that the positions of magnetic north and magnetic south are interchanged.
- Rarity
- Uncommon
- Domain
- Nature
- ATK
- 76
- DEF
- 80
- Power
- 156
- Wikipedia reads a year
- 140,000
Power 156 (ATK + DEF): stronger than 80 % of WikiCards cards.
Geomagnetic reversal quiz: 3 questions
Three questions on the Geomagnetic reversal card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
These ______ are called chrons.
Answer
periods. These periods are called chrons. From the Geomagnetic reversal article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Yoo Jae-suk. Yoo Jae-suk 85 · Fife 79 · Geomagnetic reversal 76 · Carp 73 ATK in WikiCards.
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.
- The Earth's magnetic field has alternated between periods of normal polarity, in which the predominant direction of the field was the same as the present direction, and reverse polarity, in which it was the opposite.
- These periods are called chrons.
- Reversal occurrences appear to be statistically random.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Geomagnetic reversal article was read about 140,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 76 and blocks with 80: each hit it takes is cut by 32 %.
How to get Geomagnetic reversal
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 Nature cards
Cards close in power
The cards just above and just below Geomagnetic reversal in the power ranking, all domains together.
- Tom PryceUncommon · Society · ATK 75 DEF 81
- Yoo Jae-sukUncommon · Arts · ATK 85 DEF 71
- CollegeUncommon · Society · ATK 81 DEF 75
- José Antonio Primo de RiveraUncommon · History · ATK 80 DEF 76
- VacuumUncommon · Science · ATK 80 DEF 76
- Yue ChineseUncommon · Society · ATK 75 DEF 81
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Nature cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Geomagnetic reversal (revision), CC BY-SA 4.0. Photo : CharlesC, CC BY-SA 3.0, Wikimedia Commons.
