On April 15, 2014, there will be a total lunar eclipse. It will be the first of four consecutive total eclipses in a series, known as a tetrad (the remaining three eclipses will take place on October 8, 2014, April 8, 2015, and September 28, 2015). It will be one of 8 tetrads during the 21st century AD. Like all eclipses, it is probable that the moon will appear to be a dark … [Read more...]
Ancient Timekeepers, Part 2: Observing the Sky
Ancient Timekeepers, Part 2: Observing the Sky We perceive the universe we inhabit has three dimensions of space and one dimension of time. Our planet wobbles slowly like a gyroscope in space spinning once per day while it “circles” the sun during its annual course. Despite of observing the sky from the "moving point of view", ancient astronomers were able to discover and … [Read more...]
Ancient Timekeepers, Part 1: Movements of the Earth
Ancient Timekeepers It seems that ancient people had knowledge about the astronomical cycles of the Earth equal to our modern knowledge. Explore with us how the ancient astronomers could have discovered and precisely measured these cycles without any prior knowledge about them and without advanced technology we have today. This article is presented in 3 separate parts (part … [Read more...]