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What is the significant/importance of speed?

Importance of speed:

Without speed, we might be all for late for everything! Imagine us being late for exams, work, school and everything? That would be definitely horrible. Speed helps us to get things done.

I would like to talk about speed of light(:

The speed of light in the vacuum of free space is an important physical constant usually denoted by the symbol c0 or simply c. The metre is defined such that the speed of light in free space is exactly 299,792,458 metres per second (m/s). The speed of light is 186,000 miles per second or 299,792,458 meters per second or the time it takes for the light to turn green before the guy behind you starts honking. When people refer to light, they are referring to light in a vacuum, though many vacuums are so full of dirt and dust and cat hair that not much light can travel through it. The speed of light is of fundamental importance in physics. It is the speed of not just visible light, but of all electromagnetic radiation, and it is believed to be the speed of anything having zero rest mass,[3] and of gravitational waves. Einstein's theory of relativity together with the principle of causality requires that no matter or information can travel faster than the speed of light.[4][5] Speeds faster than that of light are encountered in physics but, in all such cases, no matter or information is transmitted faster than c.

referance taken from: http://en.wikipedia.org/wiki/Speed_of_light and http://www.why-is-the-sky-blue.tv/speed-of-light.htm .

Looking at the second website, I just felt like asking why is the sky blue? LOL, I have never thought it before in my life. I just took it for granted. Maybe it's how the earth is formed and create. Everything is so incredible(: Why is the sea blue? Reaearch has shown that there's no definate answers to the second question yet.

As you ponder the clear, blue sky, you may wonder just what produces such a beautiful color. The sky is not haphazardly blue; its color is no accident of nature. There is a real scientific phenomenon behind the color of the sky. The sky is blue because of a process called Rayleigh scattering. This process involves the scattering of light off of molecules in the atmosphere. Though the sky is blue from your position on the ground, it actually looks black from space or on the moon. Since there is no atmosphere in space, the light from the sun is not scattered and colored light doesn’t reach your eyes. Without our atmosphere, we would look up to see black sky. Even a slightly thinner atmosphere would change our sky, making it appear lighter blue.

referance taken from: http://www.wisegeek.com/why-is-the-sky-blue.htm

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We have also learnt about GMT today(:

GMT simply represents: Greenwich Meridian Time. It sounds so complicating.

Times zones are configured based on using an agreed upon starting point. This has been referred to as Greenwich Mean Time, universal time, and Greenwich Meridian time. Since GMT is point zero for calculating times, all time zones are understood as being a certain number of hours ahead or behind this universal time. Taking this as the basic standard, time zones are established into fifteen degree slices all around the world. The use of fifteen degrees as an acceptable standard was first developed in the late 19th century, and remains the basis for the twenty-four time zones that currently operate around the world. An interesting fact is that while the starting point for fixing the arrangement of time zones remains the same, the actual facility that once resided at the median time location is no longer there. During the 1950s, the famed Greenwich observatory, the starting place for the concept of developing time zones, was moved to Sussex, in England. However, the original site is still considered to be the prime meridian that sets the foundation for all time zones.

Recent question by webbers:

If it's today in Australia, how come it's still yesterday in England? Unlock the secrets of the world's time zones.

Ans: http://www.lonelyplanet.com/travelstories/article/time_travel_1107

*equinox: noun [C]either of the two occasions in the year when day and night are of equal length

Alright, I'll end today's post here(:

Hey! You know what? 'Speed' is type of drugs! o.O Check this out:
Speed (amphetamine or methamphetamine) is a stimulant drug.
It produces alertness, confidence and raises levels of energy and stamina.
It reduces appetite and lessens the desire and ability to sleep.

Cool huh?