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WikiCards · Card list · Science cards · Joseph von Fraunhofer
Uncommon card · Science
Joseph von Fraunhofer, an Uncommon card
Joseph Ritter von Fraunhofer was a German physicist and optical lens manufacturer.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 66
- DEF
- 55
- Power
- 121
- Wikipedia reads a year
- 24,000
Power 121 (ATK + DEF): stronger than 60 % of WikiCards cards.
Joseph von Fraunhofer quiz: 3 questions
Three questions on the Joseph von Fraunhofer card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
He made optical glass, an ______ telescope, and objective lenses.
Answer
achromatic. He made optical glass, an achromatic telescope, and objective lenses. From the Joseph von Fraunhofer article on Wikipedia.
In which decade?
In ____, he discovered and studied the dark absorption lines in the spectrum of the sun now known as Fraunhofer lines.
Answer
1810s. In 1814, he discovered and studied the dark absorption lines in the spectrum of the sun now known as Fraunhofer lines. From the Joseph von Fraunhofer 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.
- He made optical glass, an achromatic telescope, and objective lenses.
- He developed diffraction gratings and also invented the spectroscope.
- In 1814, he discovered and studied the dark absorption lines in the spectrum of the sun now known as Fraunhofer lines.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Joseph von Fraunhofer article was read about 24,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 66 and blocks with 55: each hit it takes is cut by 22 %.
How to get Joseph von Fraunhofer
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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- Matt LindlandUncommon · Society · ATK 70 DEF 51
- Nitobe InazōUncommon · History · ATK 67 DEF 54
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Credits
Text : Wikipedia, Joseph von Fraunhofer (revision), CC BY-SA 4.0. Photo : Unknown author Unknown author, Public domain, Wikimedia Commons.
