astronomical

Tagged Discussions

The Last Farmer's Almanac

celticeagle @celticeagle (189838) • Boise, Idaho 4 Jan

Back when ancient societies tracked celestial events to guide them in their planting and seasonal aspects of their lives Almanacs were used. The first appeared in 1457 and by the late 15th century these publications included...

7 responses •

7 people

The Housing Crisis

Michelle Renee Kidwell @Michellekidwell (29953) • Sonora, California 8 Mar 20

There is a very real issue here in California, the housing crisis, because in some parts of the state rents can run in the $4500 dollar range and the median price of buying home is a half a million dollars, that of course is not...

crisis california

8 responses •

9 people

Astronomical background

ketapang @ketapang (94) • Indonesia 18 Jun 07

The motion of the Moon in its orbit is very complicated and its period is not constant. Moreover, many cultures (most notably those using the ancient Hebrew (Jewish) calendar and the Islamic calendar) start a month with the first...

islamic calendar

jewish calendar