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What Is a Leap Year

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Views:22,769 Rating:0 Comments:2
This short video gives a brief overview of the leap year. Occurring every fourth year, the leap year has 366...
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By: Guest 11 months ago
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There is a very salient point that very few people outside the cosmology/physics community understand about leap years: since Earth's orbit around the Sun takes, not 365.24 [365 + 1/4] but rather 365.24219 or ~365.2425 days; and since, even this small difference eventually will make equinox come sooner, we must even correct this. Well the clever solution to this problem that was agreed was that on years which fall exactly on the century mark (i.e., ...1000, 1100, 1200...2000, 2100...), ONLY CENTURY YEARS THAT ARE NOT DIVISIBLE BY 4 [HAVE NO REMAINDER WHEN DIVIDED BY 4] ARE LEAP YEARS (i.e.,...1100, 1300, 1400, 1500, 1700, 1800, 1900, 2100, 2200...). The mathematics of what this does: if we skipped leap year every exact century year, every 100 years we could correct things by subtracting 1/100 [or 0.01] difference (325.24), and if we add one day back every 400 years, add 1/400 [or 0.0025] giving us 365.2425 days. This gives us a correction of 1 day every 3323 years.
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By: Guest More than a year ago
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I couldn't remember the span between leap years and she opened the video by stating it happens every four years. Thanks.
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