Tagged Questions
2
votes
4answers
206 views
Why a day is divided by 12/24 hours? Why the number 12?
Why a day is divided by 12/24 hours? Why the number 12? Why not using 10 or 6 or 14, 16? Who invented this? Any physical reasons behind this?
0
votes
0answers
27 views
What is the formula for calculating the length of any given day (sunrise to sunset)? [duplicate]
In a specific date what law gives us perfect measurements and how will we measure if latitude is given?
3
votes
1answer
111 views
Finding radius of Earth through observation of Sun's motion
The question I'm about to pose is from a physics book I had recently bought. Since I am very interested in physics I am quite keen in understanding how this question can be solved. Before I present ...
2
votes
1answer
92 views
Why isn't sunset time in sync with solstice?
The winter solstice in the Northern Hemisphere in 2011 is on December 22.
But if I look at the sunset times for a location such as Washington, DC on the USNO site, the sunset time starts reversing ...
