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WikiCards · Card list · Science cards · Kennelly–Heaviside layer
Common card · Science
Kennelly–Heaviside layer, a Common card
The Heaviside layer, sometimes called the Kennelly–Heaviside layer, named after Arthur E. Kennelly and Oliver Heaviside, is a layer of ionised gas occurring roughly between 90 and 150 km above the ground , one of several layers in the Earth's ionosphere.
- Rarity
- Common
- Domain
- Science
- ATK
- 50
- DEF
- 31
- Power
- 81
- Wikipedia reads a year
- 8,900
Power 81 (ATK + DEF): stronger than 25 % of WikiCards cards.
Kennelly–Heaviside layer quiz: 3 questions
Three questions on the Kennelly–Heaviside layer card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It is also known as the E ______.
Answer
region. It is also known as the E region. From the Kennelly–Heaviside layer article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Andrew Fire. Andrew Fire 56 · Constellation 53 · Kennelly–Heaviside layer 50 · Bō-hiya 45 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 also known as the E region.
- It reflects medium-frequency radio waves.
- Because of this reflective layer, radio waves radiated into the sky can return to Earth beyond the horizon.
Why it is Common
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Kennelly–Heaviside layer article was read about 8,900 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 50 and blocks with 31: each hit it takes is cut by 12 %.
How to get Kennelly–Heaviside layer
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 Kennelly–Heaviside layer in the power ranking, all domains together.
- Cuisine of Equatorial GuineaCommon · Society · ATK 48 DEF 33
- ThiruneermalaiCommon · Arts · ATK 48 DEF 33
- Aldo BaglioCommon · Arts · ATK 51 DEF 30
- The Moon PoolCommon · Arts · ATK 54 DEF 27
- Akkalkuwa Assembly constituencyCommon · Society · ATK 57 DEF 24
- New Holland ConstructionCommon · Society · ATK 46 DEF 35
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, Kennelly–Heaviside layer (revision), CC BY-SA 4.0. Photo : IonosphereLayers-NPS.gif : Naval Postgraduate School derivative work: Phirosiberia ( talk , CC BY-SA 3.0, Wikimedia Commons.
