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WikiCards · Card list · Science cards · Buckingham pi theorem
Uncommon card · Science
Buckingham pi theorem, an Uncommon card
In engineering, applied mathematics, and physics, the Buckingham π theorem is a key theorem in dimensional analysis.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 72
- DEF
- 42
- Power
- 114
- Wikipedia reads a year
- 31,000
Power 114 (ATK + DEF): stronger than 65 % of WikiCards cards.
Buckingham pi theorem quiz: 3 questions
Three questions on the Buckingham pi theorem card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It is a ______ of Rayleigh's method of dimensional analysis.
Answer
formalisation. It is a formalisation of Rayleigh's method of dimensional analysis. From the Buckingham pi theorem article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Buckingham pi theorem. Buckingham pi theorem 72 · William Gilbert 68 · Wire 65 · Cardboard box 61 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.
- It is a formalisation of Rayleigh's method of dimensional analysis.
- Loosely, the theorem states that if there is a physically meaningful equation involving a certain number n of physical variables, then the original equation can be rewritten in terms of a set of p = n − k dimensionless parameters π1, π2,..., πp constructed from the original variables, where k is the number of physical dimensions involved, it is obtained as the rank of a particular matrix.
- The theorem provides a method for computing sets of dimensionless parameters from the given variables, or nondimensionalization, even if the form of the equation is still unknown.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Buckingham pi theorem article was read about 31,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 72 and blocks with 42: each hit it takes is cut by 17 %.
How to get Buckingham pi theorem
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.
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The cards just above and just below Buckingham pi theorem in the power ranking, all domains together.
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- Peter PocklingtonUncommon · Society · ATK 70 DEF 44
- Geely XingruiUncommon · Science · ATK 60 DEF 54
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Card lists
- Wikipedia quizNew questions every day
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Credits
Text : Wikipedia, Buckingham pi theorem (revision), CC BY-SA 4.0. Photo : Pach Brothers, Public domain, Wikimedia Commons.
