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WikiCards · Card list · Science cards · Escape velocity
Uncommon card · Science
Escape velocity, an Uncommon card
In celestial mechanics, escape velocity or escape speed is the minimum speed needed for an object to escape from contact with or orbit of a primary body, assuming: Ballistic trajectory – no other forces are acting on the object, such as propulsion and friction No other gravity-producing objects exist.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 69
- DEF
- 48
- Power
- 117
- Wikipedia reads a year
- 160,000
Power 117 (ATK + DEF): stronger than 65 % of WikiCards cards.
The facts on the card
The card carries these facts from its Wikipedia article.
- Although the term escape velocity is common, it is more accurately described as a speed than as a velocity because it is independent of direction.
- Because gravitational force between two objects depends on their combined mass, the escape speed also depends on mass.
- For artificial satellites and small natural objects, the mass of the object makes a negligible contribution to the combined mass, and so is often ignored.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Escape velocity article was read about 160,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 69 and blocks with 48: each hit it takes is cut by 19 %.
How to get Escape velocity
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 Escape velocity in the power ranking, all domains together.
- Puncak JayaUncommon · Nature · ATK 66 DEF 51
- RemoraUncommon · Nature · ATK 63 DEF 54
- IglooUncommon · Arts · ATK 61 DEF 56
- CucurbitaceaeUncommon · Nature · ATK 70 DEF 47
- Working classUncommon · Society · ATK 66 DEF 51
- PampasUncommon · Nature · ATK 68 DEF 49
Card lists
- All cards from A to ZEvery card, by name
- Nature cards600 cards
- Science cards600 cards
- History cards600 cards
- Arts cards600 cards
- Society cards600 cards
- Tier listS and A tiers by power (ATK + DEF)
- Legendary cards136 cards
- Epic cards262 cards
- Strongest cardsTop 100 by attack
Credits
Text : Wikipedia, Escape velocity (revision), CC BY-SA 4.0. Photo : STS115_Atlantis_undock_ISS.jpg : NASA derivative work: The High Fin Sperm Whale, Public domain, Wikimedia Commons.
