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Daylight Hours

Mathematical Modeling

There are many ways to explore trigonometry in this classic problem

Introduction

The Earth's rotation gives us day and night, but the length of daylight varies dramatically throughout the year depending on where you live. This classic problem becomes even more interesting when you consider other planets - imagine if Earth rotated as slowly as Venus, where one day lasts 247 Earth days! You can model these patterns using trigonometric functions and explore how planetary motion affects our perception of time.

Guiding Questions
  • How can you model this using sinusoidal functions?
  • What determines the amplitude and period of your model?
  • How does latitude affect the seasonal variation?
  • At what point in the year is the rate of change greatest?
  • How would your model change for different latitudes or planets?
Key Mathematical Concepts
Astronomy Climate Science Seasonal Patterns Sinusoidal Modeling
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