Tag Archives: Time

Thoughts on the Length of a Day on Earth

I’d like to share with you my thoughts on day length and where it is headed. First, let’s just refer to Wikipedia’s definition of day length:

Day length… refers to the time each day from the moment the upper limb of the sun’s disk appears above the horizon during sunrise to the moment when the upper limb disappears below the horizon during sunset. Due to the diffusion and refraction of sunlight by the atmosphere, there is actually daylight even when the sun is slightly below the horizon. The period when it is still somewhat light even though the sun is below the horizon is called twilight.” – Wikipedia

Antarctic sun rise

Antarctic sun rise

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Thoughts on Time

I havclocke been reading and watching documentaries on space and time over the past few months. I am very interested in some of the concepts that I am presented with. Tonight I have been expanding my understanding of Time and I will share with you some of my thoughts.

Spacetime can be thought of as the combination of space and time into what is called a continuum. We are all aware of the three dimensions within the world we occupy: length, width and depth. Within the realm of Spacetime, time is considered to be a fourth dimension,  accompanying the three we already established. Read more »