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| # Instructions | ||
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| Given an age in seconds, calculate how old someone would be on: | ||
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| - Mercury: orbital period 0.2408467 Earth years | ||
| - Venus: orbital period 0.61519726 Earth years | ||
| - Earth: orbital period 1.0 Earth years, 365.25 Earth days, or 31557600 seconds | ||
| - Mars: orbital period 1.8808158 Earth years | ||
| - Jupiter: orbital period 11.862615 Earth years | ||
| - Saturn: orbital period 29.447498 Earth years | ||
| - Uranus: orbital period 84.016846 Earth years | ||
| - Neptune: orbital period 164.79132 Earth years | ||
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| So if you were told someone were 1,000,000,000 seconds old, you should | ||
| be able to say that they're 31.69 Earth-years old. | ||
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| If you're wondering why Pluto didn't make the cut, go watch [this YouTube video][pluto-video]. | ||
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| Note: The actual length of one complete orbit of the Earth around the sun is closer to 365.256 days (1 sidereal year). | ||
| The Gregorian calendar has, on average, 365.2425 days. | ||
| While not entirely accurate, 365.25 is the value used in this exercise. | ||
| See [Year on Wikipedia][year] for more ways to measure a year. | ||
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| [pluto-video]: https://www.youtube.com/watch?v=Z_2gbGXzFbs | ||
| [year]: https://en.wikipedia.org/wiki/Year#Summary |
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| { | ||
| "authors": [ | ||
| "BNAndras" | ||
| ], | ||
| "files": { | ||
| "solution": [ | ||
| "space-age.jl" | ||
| ], | ||
| "test": [ | ||
| "runtests.jl" | ||
| ], | ||
| "example": [ | ||
| ".meta/example.jl" | ||
| ] | ||
| }, | ||
| "blurb": "Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.", | ||
| "source": "Partially inspired by Chapter 1 in Chris Pine's online Learn to Program tutorial.", | ||
| "source_url": "https://pine.fm/LearnToProgram/?Chapter=01" | ||
| } |
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| function onEarth(seconds::Integer) | ||
| seconds / 31557600 | ||
| end | ||
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| function onMercury(seconds::Integer) | ||
| onEarth(seconds) / 0.2408467 | ||
| end | ||
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| function onVenus(seconds::Integer) | ||
| onEarth(seconds) / 0.61519726 | ||
| end | ||
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| function onMars(seconds::Integer) | ||
| onEarth(seconds) / 1.8808158 | ||
| end | ||
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| function onJupiter(seconds::Integer) | ||
| onEarth(seconds) / 11.862615 | ||
| end | ||
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| function onSaturn(seconds::Integer) | ||
| onEarth(seconds) / 29.447498 | ||
| end | ||
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| function onUranus(seconds::Integer) | ||
| onEarth(seconds) / 84.016846 | ||
| end | ||
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| function onNeptune(seconds::Integer) | ||
| onEarth(seconds) / 164.79132 | ||
| end |
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