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WikiCards · Card list · Science cards · Gamma-ray astronomy
Common card · Science
Gamma-ray astronomy, a Common card
Gamma-ray astronomy is a subfield of astronomy where scientists observe and study celestial objects and phenomena in outer space which emit cosmic electromagnetic radiation in the form of gamma rays, i.e. photons with the highest energies at the very shortest wavelengths.
- Rarity
- Common
- Domain
- Science
- ATK
- 69
- DEF
- 59
- Power
- 128
- Wikipedia reads a year
- 13,000
Power 128 (ATK + DEF): stronger than 65 % of WikiCards cards.
Gamma-ray astronomy quiz: 3 questions
Three questions on the Gamma-ray astronomy card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
X-ray astronomy uses the next lower energy range, X-ray ______, with energy below 100 keV.
Answer
radiation. X-ray astronomy uses the next lower energy range, X-ray radiation, with energy below 100 keV. From the Gamma-ray astronomy article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Zhao Hongbo. Zhao Hongbo 74 · Gamma-ray astronomy 69 · James Buchanan Eads 65 · Elisabeth Park 59 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Paul Baran. Paul Baran 20,000 · Gamma-ray astronomy 13,000 · Håkon Wium Lie 10,000 · Grant Allen 7,700 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.
- X-ray astronomy uses the next lower energy range, X-ray radiation, with energy below 100 keV.
- In most cases, gamma rays from solar flares and Earth's atmosphere fall in the MeV range, but it's now known that solar flares can also produce gamma rays in the GeV range, contrary to previous beliefs.
- Much of the detected gamma radiation stems from collisions between hydrogen gas and cosmic rays within our galaxy.
Why it is Common
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Gamma-ray astronomy article was read about 13,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 69 and blocks with 59: each hit it takes is cut by 24 %.
How to get Gamma-ray astronomy
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 Gamma-ray astronomy in the power ranking, all domains together.
- Zhao HongboCommon · Society · ATK 74 DEF 54
- Elisabeth ParkCommon · Society · ATK 59 DEF 69
- Franz GrillparzerCommon · History · ATK 68 DEF 60
- History of Central AmericaCommon · History · ATK 71 DEF 57
- João da NovaCommon · History · ATK 70 DEF 58
- Marcel Reich-RanickiCommon · History · ATK 69 DEF 59
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, Gamma-ray astronomy (revision), CC BY-SA 4.0. Photo : NASA/DOE/Fermi LAT Collaboration, Public domain, Wikimedia Commons.
