WikiCards · Card list · History cards · John Randall
Common card · History
John Randall, a Common card
Sir John Turton Randall, was an English physicist and biophysicist, credited with radical improvement of the cavity magnetron, an essential component of centimetric wavelength radar, which was one of the keys to the Allied victory in the Second World War.
- Rarity
- Common
- Domain
- History
- ATK
- 64
- DEF
- 47
- Power
- 111
- Wikipedia reads a year
- 12,000
Power 111 (ATK + DEF): stronger than 50 % of WikiCards cards.
John Randall quiz: 3 questions
Three questions on the John Randall card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
It is also the key component of ______ ovens.
Answer
microwave. It is also the key component of microwave ovens. From the John Randall article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Stefano Modena. Stefano Modena 74 · Fredd Wayne 70 · John Randall 64 · Zhou Xinfang 59 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 the key component of microwave ovens.
- Randall collaborated with Harry Boot, and they produced a valve that could spit out pulses of microwave radio energy on a wavelength of 10 cm.
- On the significance of their invention, Professor of military history at the University of Victoria in British Columbia, David Zimmerman, states: "The magnetron remains the essential radio tube for shortwave radio signals of all types.
Why it is Common
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The John Randall article was read about 12,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 64 and blocks with 47: each hit it takes is cut by 19 %.
How to get John Randall
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 History cards
Cards close in power
The cards just above and just below John Randall in the power ranking, all domains together.
- John SchumannCommon · History · ATK 64 DEF 47
- Justin RutledgeCommon · Arts · ATK 63 DEF 48
- Fredd WayneCommon · History · ATK 70 DEF 41
- Stefano ModenaCommon · Society · ATK 74 DEF 37
- Chay SuedeCommon · Arts · ATK 64 DEF 47
- Danilo BarbosaCommon · Society · ATK 65 DEF 46
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- History cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, John Randall (revision), CC BY-SA 4.0. Photo : Andrew Freeth, Public domain, Wikimedia Commons.

