WikiCards · Card list · Science cards · Light tube
Uncommon card · Science
Light tube, an Uncommon card
Light tubes are structures that transmit or distribute natural or artificial light for the purpose of illumination and are examples of optical waveguides.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 73
- DEF
- 70
- Power
- 143
- Wikipedia reads a year
- 16,000
Power 143 (ATK + DEF): stronger than 70 % of WikiCards cards.
Light tube quiz: 3 questions
Three questions on the Light tube card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
Principles of ______ optics govern the flow of light through them.
Answer
nonimaging. Principles of nonimaging optics govern the flow of light through them. From the Light tube article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Dmitry Tursunov. Dmitry Tursunov 82 · Maxime Cressy 76 · Light tube 73 · Euratom 69 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Balloon. Balloon 21,000 · Light tube 16,000 · Rajendra K. Pachauri 12,000 · HMAS Success 8,600 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.
- In their application to daylighting, they are also often called tubular daylighting devices, sun pipes, sun scopes, or daylight pipes.
- They can be divided into two broad categories: hollow structures that contain the light with reflective surfaces, and transparent solids that contain the light by total internal reflection.
- Principles of nonimaging optics govern the flow of light through them.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Light tube article was read about 16,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 73 and blocks with 70: each hit it takes is cut by 28 %.
How to get Light tube
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 Light tube in the power ranking, all domains together.
- British brass bandUncommon · Arts · ATK 74 DEF 69
- Charles Scott SherringtonUncommon · History · ATK 71 DEF 72
- Holliston, MassachusettsUncommon · Society · ATK 72 DEF 71
- Maxime CressyUncommon · Society · ATK 76 DEF 67
- Dmitry TursunovCommon · Society · ATK 82 DEF 61
- Fishing industryCommon · Nature · ATK 67 DEF 76
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, Light tube (revision), CC BY-SA 4.0. Photo : Stefan Kühn, CC BY-SA 3.0, Wikimedia Commons.

