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About Time Summary
About About Time Book
Time to read a book.
Time to wash dishes.
Time to do this or that.
You say things like this every day, all the time. But there was a time when time itself was undefined--no one knew the difference between a minute, an hour, or a day.
Then people started creating tools to measure time. First they used the big stuff around them--the sun, the moon, water. Soon after, using the knowledge they got from their natural time-telling tools, people began to build clocks--huge clocks unlike the ones we use today. They also used their knowledge of the sun and moon to create calendars made up of months and years.
Now, centuries later, we have clocks all around us. We can easily figure out how long a month is. But it took many years of tinkering and inventing to perfect the art of telling time. You could take a few moments now to read all about time. If you have a minute, that is. This title has been selected as a Common Core Text Exemplar (Grades 4-5, Informational Texts)
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What's Time? (In Science)
Time is a measure of non-stop, consistent change in our surroundings, usually from a specific viewpoint.
While the concept of time is self-evident and intuitive – the steady passing of events before our eyes; the orbit of the Moon around our planet – describing its fundamental nature is much harder.
Even physicists aren't sure what actually happens when time passes. Although they do have a few hypotheses.
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How does time work?
For centuries, time was regarded as a constant, independent force, as if the Universe's progress is governed by a single clock.
This description of time changed in 1905 with Albert Einstein's theory of special relativity.
While the passing of time was already known to be closely connected to space, this monumental theory was the first to combine space and time into a single field, one with measurements that vary depending on the relative motion or gravitational forces of objects within it.
Basically, that means time is relative
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Is time real?
Two people moving at the same velocity will each agree their measures of distance and time match. As one person changes speed, however, they will see the other's measure of time and distance change, even as their own stays the same.
Without any reason to prioritize one perspective of time over another, this means time isn't a constant universal unit at all. It is a relative measurement that varies as objects move faster or slower, or as they're subjected to more or less gravity.
Gravity curves space and time: The stronger the gravity, the more it curves space-time, and the more time slows down.
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Stress relief
Making and following a task schedule reduces anxiety. As you check off items on your “to-do” list, you can see that you are making tangible progress. This helps you avoid feeling stressed out with worry about whether you’re getting things done.
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More time
Good time management gives you extra time to spend in your daily life. People who can time-manage effectively enjoy having more time to spend on hobbies or other personal pursuits.
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More opportunities
Managing time well leads to more opportunities and less time wasted on trivial activities. Good time management skills are key qualities that employers look for. The ability to prioritize and schedule work is extremely desirable for any organization.
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