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WikiCards · Card list · Science cards · Dark flow
Uncommon card · Science
Dark flow, an Uncommon card
In astrophysics, dark flow is a controversial hypothesis to explain certain non-random measurements of peculiar velocity of galaxy clusters.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 60
- DEF
- 37
- Power
- 97
- Wikipedia reads a year
- 22,000
Power 97 (ATK + DEF): stronger than 40 % of WikiCards cards.
Dark flow quiz: 3 questions
Three questions on the Dark flow card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
Very large scale correlated flow, called bulk flow, is proposed in this model to be related to certain models of ______ cosmology.
Answer
inflationary. Very large scale correlated flow, called bulk flow, is proposed in this model to be related to certain models of inflationary cosmology. From the Dark flow article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Sara Hector. Sara Hector 68 · Jeans instability 63 · Dark flow 60 · Intrusive rock 56 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 actual measured velocity is the sum of the velocity predicted by Hubble's law plus a possible small velocity flowing in a common direction.
- Very large scale correlated flow, called bulk flow, is proposed in this model to be related to certain models of inflationary cosmology.
- According to standard cosmological models, the motion of galaxy clusters with respect to the cosmic microwave background should be randomly distributed in all directions.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Dark flow article was read about 22,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 60 and blocks with 37: each hit it takes is cut by 15 %.
How to get Dark flow
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 Dark flow in the power ranking, all domains together.
- Pascual JordanUncommon · Science · ATK 65 DEF 32
- Sara HectorUncommon · Society · ATK 68 DEF 29
- Commutative diagramUncommon · Science · ATK 55 DEF 42
- Equestrian vaultingUncommon · Society · ATK 62 DEF 35
- Facundo CambesesUncommon · Society · ATK 56 DEF 41
- House of cardsUncommon · Society · ATK 49 DEF 48
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Credits
Text : Wikipedia, Dark flow (revision), CC BY-SA 4.0. Photo : NASA / WMAP Science Team, Public domain, Wikimedia Commons.
