WikiCards
Play on iPhone nowFree in Safari. Add it to your Home Screen.Play
WikiCards · Card list · Science cards · Cardioid
Uncommon card · Science
Cardioid, an Uncommon card
In geometry, a cardioid is a plane curve traced by a point on the perimeter of a circle that is rolling around a fixed circle of the same radius.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 68
- DEF
- 53
- Power
- 121
- Wikipedia reads a year
- 42,000
Power 121 (ATK + DEF): stronger than 60 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- It can also be defined as an epicycloid having a single cusp.
- It is also a type of sinusoidal spiral, and an inverse curve of the parabola with the focus as the center of inversion.
- It can also be defined as the set of points of reflections of a fixed point on a circle through all tangents to the circle.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Cardioid article was read about 42,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 68 and blocks with 53: each hit it takes is cut by 21 %.
How to get Cardioid
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 Cardioid in the power ranking, all domains together.
- PhotocopierUncommon · Science · ATK 69 DEF 52
- Atom AraulloUncommon · Society · ATK 66 DEF 55
- BattleUncommon · History · ATK 68 DEF 53
- AchernarUncommon · Science · ATK 67 DEF 54
- Bell towerUncommon · Arts · ATK 66 DEF 55
- Corrientes ProvinceUncommon · Society · ATK 66 DEF 55
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Cardioid (revision), CC BY-SA 4.0. Photo : Kmhkmh, CC BY 3.0, Wikimedia Commons.
