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WikiCards · Card list · Science cards · John Harrison
Uncommon card · Science
John Harrison, an Uncommon card
John Harrison was an English joiner and clockmaker who invented the marine chronometer, a long-sought device for solving the problem of how to calculate longitude while at sea.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 78
- DEF
- 74
- Power
- 152
- Wikipedia reads a year
- 120,000
Power 152 (ATK + DEF): stronger than 75 % of WikiCards cards.
John Harrison quiz: 3 questions
Three questions on the John Harrison card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
Harrison's solution ______ navigation and greatly increased the safety of long-distance sea travel.
Answer
revolutionized. Harrison's solution revolutionized navigation and greatly increased the safety of long-distance sea travel. From the John Harrison article on Wikipedia.
In which decade?
He presented his first design in ____, and worked over many years on improved designs, making several advances in time-keeping technology, finally turning to what were called sea watches.
Answer
1730s. He presented his first design in 1730, and worked over many years on improved designs, making several advances in time-keeping technology, finally turning to what were called sea watches. From the John Harrison article on Wikipedia.
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.
- Harrison's solution revolutionized navigation and greatly increased the safety of long-distance sea travel.
- The problem he solved had been considered so important following the Scilly naval disaster of 1707 that the British Parliament was offering financial rewards of up to £20,000 under the 1714 Longitude Act, though Harrison never received the full reward due to political rivalries.
- He presented his first design in 1730, and worked over many years on improved designs, making several advances in time-keeping technology, finally turning to what were called sea watches.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The John Harrison article was read about 120,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 78 and blocks with 74: each hit it takes is cut by 30 %.
How to get John Harrison
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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- LibertyUncommon · Society · ATK 74 DEF 78
- Roger II of SicilyUncommon · History · ATK 73 DEF 79
- Aachen CathedralUncommon · Arts · ATK 78 DEF 74
Card lists
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- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, John Harrison (revision), CC BY-SA 4.0. Photo : Thomas King († circa 1796 date QS:P,+1796-00-00T00:00:00Z/9,P1480,Q5727902 ), Public domain, Wikimedia Commons.
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