Assignment- Due October 17
-
How fast are we moving relative to the Earth's axis?
(Assume that the equator is moving at 1600 km/h and that
Vancouver lies at 50 degrees North.
Alternatively, you may want to use the radius of the earth to calculate
more precicely the speed of the Earth's equator.)
-
What does the phrase
"40% chance of precipitation in Vancouver in the next 24 hours"
mean, exactly? Cite your sources.
-
Assume that Milankovich's cycles have the following periods.
- Variation in Earth's tilt: P1 = 41,000 yrs
- Eccentricity of Earth's orbit: P2 = 100,000 yrs
- Season in which Earth is closest to sun: P3 = 22,000 yrs
Assume also that in 10,000 yrs, we will simultaneouly have
that the Earth's tilt is maximum,
that its orbit is most eccentric,
and that the sun is furthest from the Earth during the northern summer.
When is the first time after that at which all
three conditions simultaneously reoccur?
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Modified: 11/10/1995
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