Category Archives: Time definition | 時間定義

旅程

Posted on by

.

To finish the moment, to find the journey’s end in every step of the road, to live the greatest number of good hours, is wisdom.

–Emerson

.

.

The moments when you attain a goal and realize true perfection probably account for less than 2 percent of your lifetime, while the process of living and working toward your goals occupies the rest. If you look to perfection to supply your sense of success, you are discounting the other 98 percent of your life.

–Katz and Liu

.

.

The journey is the destination.

當你到達目的地後, 你會發現, 你的最大收穫是你的旅程.

— Me

.

.

.

2008.09.24 Wednesday copyright CHK^2

時間長度

Posted on by

.
一剎那者為一念，二十念為一瞬，二十瞬為一彈指，二十彈指為一羅預，二十羅預為一須臾，一日一夜有三十須臾。

— 佛教梵典《僧只律》

.

.

推算:

86400秒＝一晝夜＝30須臾＝600羅預

＝12000彈指＝240000瞬間＝4800000剎那

.

.

換算成秒數：

一「須臾」＝2880秒（48分鐘）
一「彈指」＝7.2秒
一「瞬間」＝0.36秒
一「剎那」＝一「念」之間＝0.018秒

.

.
— 改篇自維基百科

.

.

.

2008.08.28 Thursday copyright CHK^2

生物時間論

Posted on by

.

年紀越大, 時間走得越快,

.

原因有二:

一個是數學原因,

一個是生物學原因.

.

.

數學時間論

.

生物時間論

( 改篇自BBC紀錄片<<Supersenses>> )

.

.

人的年紀越大, 身體的新陳代謝率會降低, 而心跳也會減慢.

自己內在的生理時鐘越慢,

相對來說, 外在事件的節奏就會顯得越快.

.

.

.

2008.08.13 Wednesday copyright CHK^2

2.4.2 Newton, Leibniz, Einstein

Posted on by

Newton

Two distinct views exist on the meaning of time. One view is that time is part of the fundamental structure of the universe, a dimension in which events occur in sequence. This is the realist view, to which Sir Isaac Newton subscribed, in which time itself is something that can be measured.

Leibniz

A contrasting view is that time is part of the fundamental intellectual structure (together with space and number) within which we sequence events, quantify the duration of events and the intervals between them, and compare the motions of objects. In this view, time does not refer to any kind of entity that that objects “move through”, or that is a “container” for events. This view is in the tradition of Gottfried Leibniz and Immanuel Kant, in which time, rather than being an objective thing to be measured, is part of the mental measuring system.

Einstein

Many fields avoid the problem of defining time itself by using operational definitions that specify the units of measurement that quantify time. Regularly recurring events and objects with apparent periodic motion have long served as standards for units of time. Examples are the apparent motion of the sun across the sky, the phases of the moon, and the swing of a pendulum.

— Wikipedia

.

.

2008.06.22 Sunday CHK_2

因果網絡也

Posted on by

2.4 Pure Definition

2.4.1 What is Time

Time is a subtle concept. In this section, we get a proper definition of time. We begin with Newton and Leibniz.

As the creators of calculus, Newton and Leibniz are famous rivals. On the nature of time, they had completely opposite views. For Newton, time (and space) is the stage for events to happen. Time is something real in itself.

For Leibniz, time is not a real substance. Time is just a bookkeeping system to relate different objects and different events. Time is a system of relations.[3]

For example, consider the statement “the cloud is higher than the ground.” The cloud is an object. The ground is another object. But “higher than” is not an object. Instead, it is a relation between objects.

— Me

[3] The Elegant Universe Appendix

.

.

2008.06.19 Thursday \copyright CHK^2

3.5.8 preserve time

Posted on by

You can’t preserve time by not using it. When time is not used, time would still pass.

You can preserve time only by using it, spending it, investing it, transforming it into something much more valuable.

If you know how to preserve time, you do not fear the passage of time. Instead, you love the passage. As time goes, more good works are getting done.

.

.

2008.04.10 Thursday \copyright CHK^2

Road Not Taken

Posted on by

Two roads diverged in a wood, and I—
I took the one less traveled by,
And that has made all the difference.

— Robert Frost

.

Explanation and interpretations

The poem, especially its last lines, where the narrator declares that taking the road “one less traveled by” “made all the difference,” can be seen as a declaration of the importance of independence and personal freedom. However, Frost likely intended the poem as a gentle jab at his great friend and fellow poet Edward Thomas, and seemed amused at this slightly “mischievous” misinterpretation. The Road Not Taken seems to illustrate that once one takes a certain road, there’s no turning back, although one might change paths later on, they still can’t change the past.

— Wikipedia

.

.

2008.03.05 Wednesday CHK_2