Concept: Time

Reasons I think time is good:


- Makes life that bit easier
- Easier to plan / organise things
- You know when a day starts and ends
- Everyones aware of it
- Everyone has a mutual understanding of time
- Activities are now done to time 'slots'
- It easier to understand money with the term 'per hour' pay rate
- You can countdown to new years
- You know exactly when to start uni
- You can set alarms
- Bed time!
- Lunch has a time of its own, as does dinner

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Facts about time:

-Time is a part of the measuring system used to sequence events, to compare the durations of events and the intervals between them, and toquantify rates of change such as the motions of objects

- Time is not a constant; time is relative to different observers. The only constant in the Universe is the speed of light which means no matter how fast you are travelling the speed of light will remain the same although time will slow down.

- Time can be described as a dimension and along with the other three dimensions we are aware of (up/down, left/right and forward/backward) forms a four dimensional 'space-time'

- Time always moves forward yet many theoretical physicists believe that backwards time travel could be possible.

- Gravity can warp space-time making time slow down the stronger the gravitational force. Experiments with atomic clocks show the higher above sea level they are (and therefore under less gravitational influence) the faster they run (although the difference is very small)

- As the speed of light is the only constant in the Universe no matter how fast you travel, light will always seem to be the same speed, this is because time will slow down. A journey at close to the speed of light may seem like a few seconds for a traveler but to an observer it would have taken thousands of years.

- Time has not always existed. Time started with the big bang and will end if the Universe does.

- Time can be perceived differently by our brains depending on our activities. A boring day will 'drag' on whilst if we are enjoying ourselves time will seem to 'fly', this phenomenon is referred to as 'temporal illusion' by psychologists.

- Time appears to accelerate the older we get. Some (including Stephen Hawking) suggest the reason for this is that when we are ten years old a year is a tenth of our whole life and seems a long time, yet for a sixty-year-old a year is just a 60th of their life and therefore perceived as a shorter period

- Some modern atomic clocks are so accurate they can lose less than a second in 400 million years.

- A universal time scale has been developed called UTC (Coordinated Universal Time) which is based on the time told by atomic clocks but compensates for the minute slowing of the Earth's rotation (caused by the gravity of the Moon) by adding Leap Seconds every year to prevent day from creeping into night (albeit in a millennia or two).

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Words relating to time:

- Clock

- Hour

- Second

- Minute

- Stop watch
- Watch
- Pause
- Day
- Midnight
- Midday
- Late
- Early

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Opinions about time:

Questions and answers from Yahoo Answers

" Does time pass quicker when you are busy and much slower when you have nothing to do " 


" Ur logic says yes, but science says no. The more active a person is(moderation), the longer they'll live, but time does fly by when ur busy, so by this logic, u'll live longer, but would never know it because your so busy that there just aren't enough hours in the day to stop and notice "


" Well as the old saying goes "time flys while your having fun." as for lazy people I don't think they would have longer lives since there lazy thier health mybe in jeopardy.  "


" What happens when time stops as you approach the speed of light?"


" its all theory and doesn't matter for practical application. We can't even approach 0.1*C with current tehnology.

Light travels 186,000 miles per second. The fastest we have achieved is a couple of thousand miles an hour.

Thats not fast enough to even do decent testing of the theory of time dilation due to speed. Insturment error is enough to account for any differences.
Bring this question back in about 1000 years when we have "warp drive" "

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Images of time: