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WikiCards · Card list · Science cards · Optical disc
Uncommon card · Science
Optical disc, an Uncommon card
An optical disc is a flat, usually disc-shaped object that stores information in the form of physical variations on its surface that can be read with a beam of light.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 80
- DEF
- 73
- Power
- 153
- Wikipedia reads a year
- 86,000
Power 153 (ATK + DEF): stronger than 75 % of WikiCards cards.
Optical disc quiz: 3 questions
Three questions on the Optical disc card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
They may contain analog or digital information, or a ______ of the two.
Answer
mixture. They may contain analog or digital information, or a mixture of the two. From the Optical disc article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Anticoagulant. Anticoagulant 83 · Optical disc 80 · CD player 77 · Aquarius 73 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Cartography. Cartography 120,000 · Optical disc 86,000 · Human migration 64,000 · Analytical chemistry 46,000 Wikipedia reads over a year.
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.
- Optical discs can be reflective, where the light source and detector are on the same side of the disc, or transmissive, where light shines through the disc to be detected on the other side.
- They may contain analog or digital information, or a mixture of the two.
- Their main uses are the distribution of electronic media and data, and archival storage.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Optical disc article was read about 86,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 80 and blocks with 73: each hit it takes is cut by 29 %.
How to get Optical disc
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 Optical disc in the power ranking, all domains together.
- Murray RiverUncommon · Nature · ATK 78 DEF 75
- Traditional medicineUncommon · Science · ATK 72 DEF 81
- First Families of VirginiaUncommon · History · ATK 70 DEF 83
- Canadian PrairiesUncommon · Society · ATK 74 DEF 79
- Paul SamuelsonUncommon · History · ATK 76 DEF 77
- Analog televisionUncommon · Society · ATK 79 DEF 74
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, Optical disc (revision), CC BY-SA 4.0. Photo : liamz2r, Public domain, Wikimedia Commons.
